Figure F104 Conventions

Figure F104 Conventions.

Dimension lines show English units above the line (in inches unless otherwise noted) and the SI units (in millimeters unless otherwise noted). Small measurements show the dimension with an arrow pointing to the dimension line. Dimension ranges are shown above the line in inches and below the line in millimeters. AMin@ refers to minimum, and Amax@ refers to the maximum. Mathematical symbols indicate Agreater than,@ “greater than or equal to,” Aless than,@ and “less than or equal to.” A dashed line identifies the boundary of clear floor space or maneuvering space. A line with alternating shot and long dashes with a Ac@ and Al@ at the end indicate the centerline. A dashed line with longer spaces indicates a permitted element or its extension. An arrow is to identify the direction of travel or approach. A thick black line is used to represent a wall, floor, ceiling or other element cut in section or plan. Gray shading is used to show an element in elevation or plan. Hatching is used to show the location zone of elements, controls, or features. Terms defined by this document are shown in italics.

Figure 104 Conventions.

Figure 302.2 Carpet Pile Height.

Carpet is shown in cross section with a pile height of 2 inch (13 mm) maximum, measured from the backing.

Figure 302.3 Elongated Openings in Floor or Ground Surfaces.

Elongated openings, such as in a grating, are shown in plan view with openings 2 inch (13 mm) maximum in one dimension. The other dimension is longer (unspecified) and is perpendicular to the dominant direction of travel.

Figure 303.2 Vertical Change in Level.

Elevation drawing of a change in level between the surfaces of two parallel planes with a vertical edge that is 1/4 inch (6.4 mm) high maximum.

Figure 303.3 Beveled Change in Level.

Elevation drawing of a change in level 1/4 to 2 inches (6.4 - 13 mm) high that is beveled with a slope of 1:2.

Figure 304.3.2 T-Shaped Turning Space.

The T‑shape space is 36 inches (915 mm) wide at the top and stem within a 60 inch by 60 inch (1525 mm by 1525 mm) square.

Figure 305.3 Clear Floor or Ground Space.

Clear floor or ground space is 30 inches by 48 inches (760 mm by 1220 mm) minimum.

Figure 305.5(a) Forward Approach.

For a forward approach to an element, a clear floor or ground space, 30 inches by 48 inches (760 mm by 1220 mm) minimum, is shown with the shorter dimension parallel to the wall or element.

Figure 305.5(b) Parallel Approach.

For a parallel approach to an element, a clear floor or ground space, 30 inches by 48 inches (760 mm by 1220 mm) minimum, is shown with the longer dimension parallel to the wall or element.

Figure 305.7.1 Maneuvering Clearance in an Alcove: Forward Approach.

For a forward approach, if the depth of the alcove is greater than 24 inches (610 mm), the clear floor or ground space within the alcove must be 36 inches (915 mm) wide minimum.

Figure 305.7.2 Maneuvering Clearance in an Alcove: Parallel Approach.

For a parallel approach, if the depth of the alcove is greater than 15 inches (380 mm), then the length of the clear floor or ground space within the alcove must be 60 inches (1525 mm) minimum.

Figure 306.2(a) Toe Clearance: Elevation.

Toes of a person in a wheelchair are shown extending for a maximum depth of 6 inches (150 mm) under an object that is 9 inches (230 mm) high minimum.

Figure 306.2(b) Toe Clearance: Plan.

Toe clearance at an element, as part of clear floor space, shall extend 17 to 25 inches (430 to 635 mm) under the element. The clear floor space is 30 inches (760 mm) wide minimum.

Figure 306.3(a) Knee Clearance: Elevation.

Knee clearance is 27 inches (685 mm) high minimum above the floor or ground for a minimum depth of 8 inches (205 mm), measured from the leading edge of the element. The vertical clearance decreases beyond this depth to a height of 9 inches (230 mm) minimum at depth of 11 inches (280 mm) minimum measured from the leading edge of the element.

Figure 306.3(b) Knee Clearance: Plan

Combined knee and toe clearance can extend 25 inches (635 mm) maximum under an element.

Figure 307.2 Limits of Protruding Objects.

A frontal view shows a person using a cane walking along a wall. A wall-mounted object more than 27 inches (685 mm) from the floor protrudes no more than 4 inches (100 mm) from the wall surface. An object overhead provides vertical clearance that is greater than 80 inches (2030 mm).

Figure 307.3 Post-mounted Protruding Objects.

Elevation drawing (a) shows an object mounted more than 27 inches (685 mm) high on a post. The object protrudes 12 inches (305 mm) maximum from the post on both sides. Elevation (b) shows signs or other obstructions mounted between posts or pylons. One object has its lowest edge mounted 27 inches (685 mm) high maximum between posts that are more than 12 inches apart. Another object is mounted with its lowest edge 80 inches (2030 mm) high minimum between posts that are more than 12 inches apart.

Figure 307.4 Vertical Clearance.

A person using a long cane is shown approaching the sloped underside of a staircase. A portion of the area below the stairs in front of the person has a vertical clearance less than 80 inches (2030 mm). A railing 27 inches (685 mm) high maximum separates this space from the areas where a vertical clearance at or above 80 inches (2030 mm) is maintained.

Figure 308.2.1 Unobstructed Forward Reach.

A side view is shown of a person suing a wheelchair reaching toward a wall. The lowest vertical reach point is 15 inches (380 mm) minimum and the highest is 48 inches (1220 mm) maximum.

Figure 308.2.2 Obstructed High Forward Reach.

Figure (a) shows a person seated in a wheelchair reaching a point on a wall above a protrusion, such as a wall-mounted counter, which is 20 inches (510 mm) deep maximum. The maximum reach height is 48 inches (1220 mm). In figure (b), the obstruction is more than 20 inches (510 mm) deep, with 25 inches (635 mm) the maximum depth. The maximum reach height is 44 inches (1120 mm).

Figure 308.3.1 Unobstructed Side Reach.

The drawing shows a frontal view of a person using a wheelchair making a side reach to a wall. The depth of reach is 10 inches (255 mm) maximum. The vertical reach range is 15 inches (380 mm) minimum to 54 inches (1370 mm) maximum.

Figure 308.3.2 Obstructed High Side Reach.

In figure (a), a person seated in a wheelchair is shown reaching to the side over an obstruction 10 inches (510 mm) deep maximum and 34 inches (865 mm) high maximum. The maximum reach height is 48 inches (1220 mm). In figure (b) the obstruction depth is 10 inches to 24 inches maximum (255 to 610 mm) and 34 inches (865 mm) high maximum. The maximum reach height is 46 inches (1170 mm).

Figure 403.5.1 Clear Width of an Accessible Route.

Shown in plan view, the minimum clear width of walking surfaces is 36 inches (915 mm) minimum, but can be reduced to 32 inches (815 mm) for a length of 24 inches (610 mm) maximum, provided that the reduced width segments are at least 48 inches (1220 mm) apart.

Figure 403.5.2 Clear Width at Turn.

Two alternative plan views are shown of an accessible route that has a 180 degree turn about an object less than 48 inches (1220 mm) wide. In figure (a), the clear width is 42 inches (1065 mm) minimum approaching the turn, 48 inches (1220 mm) minimum at the turn, and 42 inches (1065 mm) minimum leaving the turn. In figure (b), the clear width is 36 inches (915 mm) minimum approaching the turn, 60 inches (1525 mm) minimum at the turn, and 36 inches (915 mm) minimum leaving the turn.

Figure 404.2.3 Clear Width of Doorways.

Figure (a) shows in plan view a hinged door open 90 degrees with a clear opening width 32 inches (815 mm) minimum, measured from the face of the door to the opposite stop. Figure (b) shows an open sliding door with a clear opening width 32 inches (815 mm) minimum. Figure (c) shows an open folding door with a clear opening width 32 inches (815 mm) minimum.

Figure 404.2.4.1 Maneuvering Clearance at Manual Swinging Doors and Gates.

Figures (a) - (c) Front Approaches. Maneuvering space on the pull side extends 18 inches (455 mm) minimum beyond the latch side of the door and 60 inches (1525 mm) minimum perpendicular to the doorway. On the push side of doors not equipped with a closer or latch, the maneuvering space is the same width as the door opening and extends 48 inches (1220 mm) minimum perpendicular to the doorway. At doors equipped with both a closer and a latch, the maneuvering space extends 12 inches (305 mm) minimum beyond the latch side of the door and 48 inches (1220 mm) minimum perpendicular to the doorway.

Figures (d) - (g) Hinge Approaches. Maneuvering space on the pull side extends 36 inches (915 mm) minimum beyond the latch side of the door and 60 inches (1525 mm) minimum perpendicular to the doorway; if this space extends 42 inches (1065 mm) minimum beyond the latch side of the door, it can extend 54 inches (1370 mm) minimum perpendicular to the doorway. On the push side, maneuvering space extends 22 inches (560 mm) from the hinge side of the doorway and 48 inches (1220 mm) minimum perpendicular to the doorway at doors with both a closer and a latch or 42 inches (1065 mm) at doors that do not have both a closer and a latch.

Figures (h) - (k) Latch Approaches. Maneuvering space on the pull side extends 24 inches (915 mm) minimum beyond the latch side of the door and 54 inches (1525 mm) minimum perpendicular to the doorway; if the door has both a closer and a latch; if the door does not, the space can be 48 inches (1220 mm) minimum measured perpendicular to the doorway. On the push side, maneuvering space extends 24 inches (560 mm) from the latch side of the doorway and 48 inches (1220 mm) minimum perpendicular to the doorway if the door has both a closer and a latch; if it does not, the space can extend 42 inches (1065 mm) minimum measured perpendicular to the doorway.

Figure 404.2.4.2 Maneuvering Clearances at Doorways without Doors, Manual Sliding Doors, and Manual Folding Doors.

Figure (a) shows a front approach to a sliding or folding (accordion) door. Maneuvering clearance is as wide as the door opening and 48 inches (1220 mm) minimum perpendicular to the opening. Figure (b) shows a doorway without a door. For a side approach, maneuvering clearance is as wide as the doorway and 42 inches (1065 mm) minimum perpendicular to the doorway. Figure (c) shows a pocket or hinge approach. Maneuvering clearance extends 22 inches (560 mm) from the pocket or hinge side and is 42 inches (1065 mm) minimum perpendicular to the doorway. Figure (d) shows a stop or latch approach. Maneuvering clearance extends 24 inches (610 mm) from the stop or latch side and is 42 inches (1065 mm) minimum perpendicular to the doorway.

Figure 404.2.4.3 Maneuvering Clearance at Recessed Doors and Gates.

Figures (a) - (c) show front approaches at doors recessed more than 8 inches (455 mm). Maneuvering space on the pull side extends 18 inches (455 mm) minimum beyond the latch side of the door and 60 inches (1525 mm) minimum perpendicular to the plane of the doorway. On the push side of doors not equipped with a closer or latch, the maneuvering space is the same width as the door opening and extends 48 inches (1220 mm) minimum perpendicular to the plane of the doorway. At doors equipped with both a closer and a latch, the maneuvering space extends 12 inches (305 mm) minimum beyond the latch side of the door and 48 inches (1220 mm) minimum measured perpendicular to the plane of the doorway.

Figure 404.2.6 Doors in Series and Gates in Series.

Figure (a) shows two doors in series which swing in the same direction. Space between the doors must be at least 48 inches (1220 mm) minimum plus the width of the in-swinging door. Figure (b) shows two doors in series which swing away from the space between the doors. The space separating the doors must be at least 48 inches (1220 mm) long.

Figure 405.7 Ramp Landings.

Figure (a) shows in plan view a ramp with two landings, each 60 inches (1525 mm) long in the direction of the ramp run and as wide as the connecting ramp run. Figure (b) shows a ramp that has two runs connected by a landing 60 by 60 inches (1525 by 1525 mm); each run is oriented at 90 degrees from the other run, which connect to an adjacent sides of the landing.

Figure 405.9.1 Extended Floor or Ground Surface Edge Protection.

The cross section of a ramp with handrails is shown where the ramp surface extends 12 inches (305 mm) minimum to the outside of the handrails.

Figure 405.9.2 Curb or Barrier Edge Protection.

An elevation drawing shows a vertical clearance of less than 4 inches (100 mm) between the ramp surface and the bottom edge of a horizontal rail.

Figure 406.2 Counter Slope of Surfaces Adjacent to Curb Ramps.

In cross section, a curb ramp with a maximum slope of 1:12 adjoins a surface at the bottom that has a maximum counter slope of 1:20.

Figure 406.3 Sides of Curb Ramps.

A curb ramp with triangular flared sides is shown. The flared sides have a maximum 1:10 slope, measured at the curb face.

Figure 406.4 Landings at the Top of Curb Ramps.

A plan view of a curb ramp shows the required top landing which has a length of 36 inches (915 mm) minimum in the direction of the ramp run and is at least as wide as the ramp.

Figure 406.6 Diagonal or Corner Type Curb Ramps.

A plan view of a diagonal curb ramp is shown at a marked crossing. A space 48 inches (220 mm) minimum, measured in the direction of the ramp run, is provided at the bottom of the ramp outside active traffic lanes and within the boundary of the marked pedestrian crossing. Sections of curb 24 inches (610 mm) minimum in length are shown beyond the flared sides and within the marked crossing.

Figure 406.7 Islands in Crossings.

Figure (a) is a plan view of a raised pedestrian island with a walkway cut through at the same level as the street crossing. Figure (b) is a plan view of a raised pedestrian island between two traffic lanes. Aligned curb ramps with side flares slope down on each side. The level space between the top of both ramps is 48 inches (1220 mm) long minimum. The width of both ramp runs is 36 inches (915 mm).

Figure 407.2.2.2 Visible Hall Signals.

Visible signals are shown centered at 72 inches (1830 mm) minimum above the floor ground. The individual “up” and “down” elements, one with circular elements, another with triangular elements, are 2 2 inches (64 mm) minimum measured along the vertical centerline of the element.

Figure 407.2.3.1 Floor Designations on Jambs of Elevator Hoistway Entrances.

An enlarged detail of a tactile floor designation is shown. The sign contains a star and the number A1" next to it which is 2 inches (51 mm) high; the braille equivalent is provided below each.

Figure 407.2.3.2 Car Designations on Jambs of Destination-Oriented Elevator Hoistway Entrances.

An enlarged detail shows the car designation below the floor designation. The car designation is 2 inches (51 mm) minimum high with the braille equivalent below it.

Figure 407.4.1 Elevator Car and Door Sizes.

Figure (a) shows an elevator car with a centered door. The door clear width is 42 inches (1065 mm) minimum and the car width measured side to side is 80 inches (2030 mm) minimum. The car depth is 51 inches (1295 mm) minimum measured from the back wall to the front return, and 54 inches (1370 mm) minimum measured from the back wall to the inside face of the door. Figure (b) shows an elevator car with an off-centered door. The door clear width is 36 inches (915 mm) minimum and the car width measured side to side is 68 inches (1725 mm) minimum. The depth is 51 inches (1295 mm) minimum measured from the back wall to the front return, and 54 inches (1370 mm) minimum measured from the back wall to the inside face of the door. Figure (c) shows a car with a clear door width of 36 inches (915 mm) minimum and the car width measured side to side is 54 inches (1370 mm) minimum. The car depth is 80 inches (2030 mm) minimum measured from the back wall to the front return. Figure (d) shows a car with a clear door width of 36 inches (915 mm) minimum and the car width measured side to side is 60 inches (1525 mm) minimum. The car depth is 60 inches (1525 mm) minimum measured from the back wall to the front return. Figure (e) illustrates the exception for an existing elevator car configuration. The car depth is 54 inches (1370 mm) minimum, the width is 39 inches (915 mm) minimum, and the clear floor area is 16 square feet (1.5 square m) minimum.

Figure 408.4.1 Limited Use/Limited Application (LULA) Elevator Car and Door Sizes.

Figure (a) shows the configuration for new construction. The door clear width is 32 inches (815 mm) minimum and the car width measured side to side is 42 inches (1065 mm) minimum. The car depth is 54 inches (1370 mm) minimum. Figure (b) illustrates Exception 1. The door width is 36 inches (815 mm) minimum and the car has a clear interior space 51 by 51 inches (1295 by 1295 mm) minimum. Figure (c) illustrates Exception 2. The car width is 36 inches (915 mm) minimum, the depth is 54 inches (1370 mm) minimum, and the net clear car area is 15 square feet (1.4 square m) minimum.

Figure 409.4.6.2 Location of Private Residence Elevator Control Panel.

A plan view shows an elevator with an out-swinging hoistway door. The control panel is shown on the car side wall 12 inches (305 mm) minimum from the front.

Figure 410.6 Platform Lift Doors and Gates.

A rectangular lift platform is shown in plan view with an end door 32 inches (815 mm) minimum, and a side door 42 inches (1065 mm) minimum.

Figure 502.2 Vehicle Parking Spaces.

Two marked parking spaces are shown in plan view. The car space is 96 inches (2440 mm) wide minimum and the van space is 132 inches (3350 mm) wide minimum, with an access aisle between them.

Figure 502.3 Parking Space Access Aisle.

A van and a car parking space are shown in plan view sharing an access aisle. The access aisle is shown to be 60 inches (1525 mm) wide minimum and as long as the parking space. The entire length of the aisle area is to be marked.

Figure 503.3 Passenger Loading Zone Access Aisle.

An access aisle at a passenger loading zone is shown to be the full length of the vehicle pull-up space and 60 inches (1525 mm) wide minimum. The aisle area is to be marked.

Figure 504.5 Stair Nosings.

Figure (a) shows vertical risers where the radius of curvature of the leading edge of each tread is 2 inch (13 mm) maximum. Figure (b) shows angled risers. Risers can slope at an angle of 30 degrees maximum from the vertical. Figures (c) and (d) show curved and beveled nosings, respectively. The maximum projection of the nosing is 1 2 inches (38 mm) beyond the rear of the tread below.

Figure 505.4 Handrail Height.

Figure (a) shows stairs with the top gripping surface of a handrail 34 to 38 inches (865 to 965 mm) above stair nosings. Figures (b) and (c) show ramps and walking surfaces, respectively. The top gripping surface of a handrail is 34 to 38 inches (865 to 965 mm) above the surface.

Figure 505.5 Handrail Clearance.

The clearance between the handrail and wall is shown to be 1 2 inches (38 mm) minimum.

Figure 505.6 Horizontal Projections Below Gripping Surface.

A handrail with brackets attached to the bottom surface is shown in cross section. The horizontal projection of the bracket from the wall is 1 2 inches (38 mm) below the bottom of the handrail.

Figure 505.7.2 Handrail Non-Circular Cross Section.

Figure (a) shows a handrail with an approximately square cross section and figure (c) shows an elliptical cross section. The largest cross section dimension is 2 2 inches (57 mm) maximum. The perimeter dimension must be 4 to 6 1/4 inches (100 to 160 mm).

Figure 505.10.1 Top and Bottom Handrail Extension at Ramps.

Ramp handrails at the top and bottom are shown to extend horizontally above the landing 12 inches (305 mm) minimum from the ramp run. The extensions return to posts.

Figure 505.10.2 Top Handrail Extension at Stairs.

The handrail extends horizontally above the landing for 12 inches (305 mm) minimum beginning directly above the first riser nosing.

Figure 505.10.3 Bottom Handrail Extension at Stairs.

A handrail is shown to extend at the slope of the stair flight for a horizontal distance equal to one tread depth beyond the last riser nosing.

Figure 602.5 Drinking Fountain Spout Location.

In plan view, the spout is shown to be 15 inches (380 mm) minimum from the vertical support and 5 inches (125 mm) from the front edge of the unit.

Figure 604.2 Water Closet Location.

Figure (a) shows a wheelchair accessible water closet, with space on one side, and figure (b) shows an ambulatory accessible water closet, with stall walls and grab bars on both sides. The water closet centerline is shown to be 16 to 18 inches (405 to 455 mm) from the side wall.

Figure 604.3.1 Size of Clearance at Water Closets.

The clearance around a water closet is shown in plan view to be 60 inches (1525 mm) wide minimum and 56 inches (1420 mm) deep minimum.

Figure 604.3.2 (Exception) Overlap of Water Closet Clearance in Residential Dwelling Units.

The clearance around a water closet is shown in plan view to be 60 inches (1525 mm) wide minimum and 66 inches (1675 mm) deep minimum with a lavatory permitted on the real wall if the distance between the lavatory nearest edge and the water closet center line is 18 inches (455 mm) minimum.

Figure 604.5.1 Side Wall Grab Bar at Water Closets.

Elevation drawing shows the side wall grab bar to be 42 inches (1065) long minimum, located 12 inches (305 mm) maximum from the rear wall and extending 54 inches (1370 mm) minimum from the rear wall.

Figure 604.5.2 Rear Wall Grab Bar at Water Closets.

Elevation drawing shows the rear grab bar 36 inches (915 mm) long minimum, positioned so that 24 inches (610 mm) minimum extends toward the open transfer side and 12 inches (305 mm) minimum extends toward the side wall.

Figure 604.7 Dispenser Outlet Location.

Elevation drawing shows the centerline of the toilet paper dispenser to be 7 to 9 inches (180 to 230 mm) in front of the water closet. The outlet of the dispenser is 15 inches (380 mm) minimum and 48 inches (1220 mm) maximum above the floor.

Figure 604.8.1.1 Size of Wheelchair Accessible Toilet Compartment.

Figure (a) is a plan view of an adult wall hung water closet. The compartment is shown to be 60 inches (1525 mm) wide minimum and 56 inches (1420 mm) deep minimum. Figure (b) is a plan view of an adult floor mounted and a children’s water closet. The compartment is shown to be 60 inches (1525 mm) wide minimum and 59 inches (1500 mm) deep minimum.

Figure 604.8.1.2 Wheelchair Accessible Toilet Compartment Doors.

The compartment door is hinged 4 inches (100 mm) maximum from the side wall or partition farthest from the water closet so that the door opens on to the open transfer space. The minimum clearance between the door side of the stall and any obstruction is 42 inches (1065 mm).

Figure 604.8.1.4 Wheelchair Accessible Toilet Compartment Toe Clearance.

Figure (a) is an elevation drawing showing toe clearance under a toilet compartment partition. Toe clearance is 9 inches (230 mm) high minimum and 6 inches (150 mm) deep minimum beyond the compartment-side face of the partition. Figure (b) is an elevation drawing for a children’s toilet compartment. Toe clearance is 12 inches (305 mm) high minimum and 6 inches (150 mm) deep minimum beyond the compartment-side face of the partition. Figure (c) is a plan view showing toe clearance under the front partition and one side partition, 6 inches (150 mm) deep minimum.

Figure 604.8.2 Ambulatory Accessible Toilet Compartment.

The compartment is 60 inches (1525 mm) deep minimum and 35 to 37 inches (890 to 940 mm) wide, with grab bars on both sides. The minimum clearance between the door side of the stall and any obstruction is 42 inches (1065 mm).

Figure 605.2 Height and Depth of Urinals.

Figure (a) is an elevation drawing of a wall hung type having the urinal rim 17 inches (430 mm) maximum above the floor with a minimum depth of 13 2 inches (350 mm) measured from the outer face of the rim to the back of the fixture. Figure (b) is an elevation drawing of a stall (floor) type having a minimum depth of 13 2 inches (350 mm) measured from the outer face of the rim to the back of the fixture.

Figure 607.2 Clearance for Bathtubs.

Figure (a) shows a bathtub with a removable in-tub seat. The bathtub has clearance in front 30 inches (760 mm) wide minimum that extends the length of the tub. Figure (b) shows a bathtub with a permanent seat at the head end (the end opposite the controls). The tub has clearance in front 30 inches (760 mm) wide minimum that extends the length of the tub plus 12 inches (305 mm) minimum beyond the seat. Both figures show that a lavatory can be located at the foot end of the tub clearance.

Figure 607.4.1 Grab Bars for Bathtubs with Permanent Seats.

Figure (a) shows an elevation drawing of a tub with a permanent seat and two parallel grab bars on the back wall. The upper grab bar is mounted 33 to 36 inches (840 to 915 mm) above the finish floor. The lower grab bar is mounted 8 to 10 inches (205 to 255 mm) above the tub rim. Figure (b) is a plan view. A grab bar on the foot end wall is 24 inches (610 mm) long minimum and is installed at the front edge of the tub. The rear grab bars are mounted 12 inches (305 mm) maximum from the foot end wall and 15 inches (380 mm) maximum from the head end wall.

Figure 607.4.2 Grab Bars for Bathtubs with Removable In-Tub Seats.

Figure (a) is an elevation drawing showing rear grab bars, one mounted 33 to 36 inches (840 to 915 mm) above the finish floor, and one mounted 8 to 10 inches (205 to 255 mm) above the tub rim.

Figure (b) is a plan view showing a grab bar on the foot (control) end wall 24 inches (610 mm) long minimum installed at the front edge of the tub. Rear grab bars are 24 inches (610 mm) long minimum and are mounted 12 inches (305 mm) maximum from the foot (control) end wall and 24 inches (610 mm) maximum from the head end wall. A grab bar 12 inches (305 mm) long minimum is installed on the head end wall at the front edge of the tub.

Figure 607.5 Bathtub Control Location.

Elevation drawing shows the location of controls above the tub rim and below the grab bar and between the front edge of the tub and the tub centerline.

Figure 608.2.1 Transfer Type Shower Compartment Size and Clearance.

A transfer stall is shown in plan view to be 36 by 36 inches (915 by 915 mm). Clear floor space in front is 36 inches (915 mm) wide minimum and 48 inches (1220 mm) long minimum measured from the control wall.

Figure 608.2.2 Standard Roll-In Type Shower Compartment Size and Clearance.

A plan view shows the shower compartment is 30 inches (760 mm) minimum by 60 inches (1525 mm) minimum with a 60 inch (1525 mm) wide entry on the face of the compartment. A clear floor space 30 inches (760 mm) side is provided adjacent to the open face of the compartment. A seat is shown on one end. A lavatory is permitted within the clear floor space on the end opposite the seat.

Figure 608.2.3 Alternate Roll-In Shower Compartment Size and Clearance.

A plan view shows the shower compartment is 36 inches (915 mm) wide absolute and 60 inches (1525 mm) deep minimum. A 36 inch (915 mm) wide minimum entry is provided on one long wall. A seat is provided adjacent to the entry on the same wall.

Figure 608.3.1 Grab Bars for Transfer Type Showers.

Plan view shows a grab bar that extends across the control wall and the back wall to a point 18 inches (455 mm) from the control wall.

Figure 608.3.2 Grab Bars for Roll-In Type Showers.

Figure (a) is a plan view of a shower without a seat. Grab bars are provided on three walls that are 6 inches (150 mm) maximum from the adjacent wall. Figure (b) is a plan view of a shower with a seat on one side wall. Grab bars are provided on the opposite side wall and the back wall. The back wall grab bar does not extend over the seat. The grab bars are 6 inches (150 mm) maximum from the adjacent wall.

Figure 608.3.3 Grab Bars for Alternate Roll-In Type Showers.

This figure shows an alternate roll-in shower with a seat. A grab bar extends on the wall opposite the seat and is 6 inches (150 mm) maximum from adjacent walls. Another grab bar is mounted on the side wall adjacent to the seat; this grab bar does not extend over the seat and is 6 inches (150 mm) maximum from the back wall.

Figure 608.5.1 Transfer Type Shower Compartment Control Location.

The area for controls, faucets and shower spray units is located 38 inches (965 mm) minimum to 48 inches (1220 mm) maximum above the shower floor on the control wall 15 inches (380 mm) maximum from the centerline of the seat, toward the shower opening.

Figure 608.5.2 Standard Roll-In Type Shower Compartment Control Location.

Figure (a) is an elevation drawing of a compartment without a seat. The area for controls, faucets and shower spray units is located on any wall of the shower above the grab bar but no higher than 48 inches (1220 mm) above the shower floor. Figure (b) is an elevation drawing of a compartment with a seat. The area for controls, faucets and shower spray units is located on the back wall 27 inches (685 mm) from the seat wall and above the grab bar, but no higher than 48 inches (1220 mm) above the shower floor.

Figure 608.5.3 Alternate Roll-In Type Shower Compartment Control Location.

Figure (a) is an elevation drawing of a side wall adjacent to a seat. The area for controls, faucets and shower spray units is located on the side wall adjacent to the seat, above the grab bar but no higher than 48 inches (1220 mm) above the shower floor, and extending 27 inches (685 mm) maximum from the seat wall. Figure (b) shows an alternate location on the back wall, above the grab bar but no higher than 48 inches (1220 mm) above the shower floor, and extending from the side wall to 15 inches (380 mm) maximum from the center line of the seat. Figures (c) and (d) are plan views of compartments without and with a seat, respectively.

Figure 609.2.2 Grab Bar Non-Circular Cross Section.

Figure (a) shows a handrail with an approximately square cross section and figure (c) shows an elliptical cross section. The largest cross section dimension is 2 inches (51 mm) maximum. The perimeter dimension must be 4 to 4.8 inches (100 to 120 mm).

Figure 609.3 Spacing of Grab Bars.

A grab bar is shown with a projecting object mounted above and below it. Projecting objects must spaced 1 ½ inch (38 mm) minimum below and 12 inches (305 mm) minimum above the grab bar. Recessed objects can be spaced immediately above and below.

Figure 610.2 Bathtub Seats.

Figure (a) shows a removable in-tub seat in elevation and plan views that is 15 to 16 inches (380 to 405 mm) deep and 17 to 19 inches (430 to 485 mm) above the floor measured to the top of the seat. Figure (b) shows permanent tub seat in elevation and plan views that is 15 inches (380 mm) minimum deep and 17 to 19 inches (430 to 485 mm) above the floor measured to the top of the seat.

Figure 610.3 Extent of Seat.

Figure (a) is a plan view of a rectangular seat and figure (b) is a plan view of an L-shaped seat. The front edge of each is 3 inches (75 mm) maximum from the compartment entry.

Figure 610.3.1 Rectangular Shower Seat.

The rear edge is 2 2 inches (64 mm) maximum and the front edge 15 to 16 inches (380 to 405 mm) from the seat wall. The side edge is 1 2 inches (38 mm) maximum from the back wall.

Figure 610.3.2 L-Shaped Shower Seat.

Figures (a) shows the “L” is oriented with the narrower portion toward the compartment opening and the base toward the back. The front edge of the narrow portion of the “L” is 15 to 16 inches (380 to 405 mm) from the seat wall and the base end is 22 to 23 inches (560 to 585 mm) from the seat wall. The base of the “L” is 14 to 15 inches (355 to 380 mm) from the adjacent wall. Figure (b) shows that the seat is 2 2 inches (64 mm) maximum from the seat wall and the rear edge of the AL@ portion is 1 2 inches (38 mm) maximum from the adjacent wall.

Figure 611.4 Height of Laundry Compartment Opening.

Figure (a) shows a top loading machine with the door to the laundry compartment 36 inches (915 mm) maximum above the floor. Figure (b) shows a front loading machine with the bottom of the opening to the laundry compartment 15 to 36 inches (380 to 915 mm) above the floor.

Pictogram of a TTY showing the keyboard and space bar typical of most devices and the shape of a telephone handset at the top.

Figure 703.7.2.3 Volume Controlled Telephones.

Pictogram of a telephone handset in profile with radiating sound waves.

Figure 703.7.2.4 Assistive Listening Systems.

Pictogram with the shape of an ear and a bar diagonally across the shape.

Figure 704.2.1.1 Parallel Approach to Telephone.

The maximum distance from the face of the telephone to the edge of the telephone enclosure is 10 inches (255 mm). Clear floor space for a parallel approach is located in front of the enclosure.

Figure 704.2.1.2 Forward Approach to Telephone.

The maximum distance from the front edge of a counter within the telephone enclosure to the face of the telephone is 20 inches (510 mm). The telephone enclosure overlaps the clear floor space for a forward approach.

Figure 705.1 Size and Spacing of Truncated Domes.

Figure (a) is an enlarged elevation drawing of a single dome showing the base diameter as 0.9 to 1.4 inches (23 to 36 mm) and the top surface as having a diameter of 50% to 65% of the bas. The dome height is 0.2 inch (5.1 mm). Figure (b) is a plan view of a detectable warning surface showing the center-to-center dome spacing of 1.6 to 2.4 inches (41 to 61 mm) with a base-to-base separation of 0.65 inch (17 mm) minimum.

Figure 707.6.2 Numeric Key Layout.

Figure (a) shows a 12-key ascending layout with “1” in the upper left corner, such as a telephone. Figure (b) shows a descending layout with “7” in the upper left corner, such as a computer numeric keypad.

Figure 802.1.2 Width of Wheelchair Spaces in Assembly Areas.

Figure (a) is a plan view of a single wheelchair space 36 inches (915 mm) wide minimum. Figure (b) is a plan view of two wheelchair spaces side by side. Each space is 33 inches (840 mm) wide minimum.

Figure 802.1.3 Depth of Wheelchair Spaces in Assembly Areas.

Figure (a) shows a wheelchair space that can be entered from the front or rear that is 48 inches (1220 mm) deep minimum. Figure (b) shows a wheelchair space entered from the side that is 60 inches (1525 mm) deep minimum.

Figure 802.2.1.1 Lines of Sight Over the Heads of Seated Spectators.

Elevation drawing shows a person using a wheelchair on an upper level of tiered seating having a line of sight over the heads of spectators seated in front.

Figure 802.2.1.2 Lines of Sight Between the Heads of Seated Spectators.

Elevation drawing shows a person using a wheelchair on an upper level of tiered seating having a line of sight between the heads of spectators seated in front.

Figure 802.2.2.1 Lines of Sight Over the Heads of Standing Spectators.

Elevation drawing shows a person using a wheelchair on an upper level of tiered seating elevated sufficiently to have a line of sight over the heads of spectators standing in front.

Figure 802.2.2.2 Lines of Sight Between the Heads of Standing Spectators.

Elevation drawing shows a person using a wheelchair on an upper level of tiered seating elevated sufficiently to have a line of sight between the heads of spectators standing in front.

Figure 804.2.1 Pass Through Kitchens.

A plan view of a kitchen with appliances and cabinets on both sides of an aisle open on both ends shows the width of the central aisle as 40 inches (1015 mm) minimum.

Figure 804.2.2 U-Shaped Kitchens.

Figure (a) is a plan view of a kitchen with appliances and cabinets on three sides. Figure (b) is a plan view of a kitchen with appliances and cabinets on two opposites with a wall at the rear. The width of the kitchen entry opening is 60 inches (1525 mm) minimum.

Figure 810.2.2 Size of Bus Boarding and Alighting Areas.

A plan view shows a bus pulled up to an area for passengers to board or alight. A clear area immediately outside the bus door is shown 60 inches (1525 mm) minimum, measured parallel to the roadway and 96 inches (1220 mm) minimum, measured perpendicular to the curb or roadway edge.

Figure 810.3 Bus Shelters.

A plan view shows a bus shelter with a person using a wheelchair seated fully within. An accessible route connects the wheelchair seating area within the shelter to the bus boarding and alighting area which, in this case, is outside of the shelter

Figure 810.10 (Exception) Track Crossings.

A cross section of a pair of train rails is shown with walkway surfaces abutting the rails on the outside of the pair. The surface between the rails is at the same level as the outside surfaces, but a horizontal gap 2 ½ inches (64 mm) maximum is shown on the inner edge of each rail to accommodate a train wheel flange.

Figure 903.4 Bench Back Support.

Figure (a) is an elevation drawing of a bench with a back. The bottom edge of the back is 2 inches (51 mm) maximum above the seat surface and the top edge of the back is 18 inches (455 mm) above the seat surface. Figure (b) shows the distance between the rear edge of the seat and the front face of the back support as 2 ½ inches (64 mm) maximum.

Figure 904.3.2 Check-Out Aisle Counters.

A counter surface is shown in elevation with a maximum height of 38 inches (965 mm) above the floor or ground and with edge protection above the surface that is 2 inches (51 mm) high maximum.

Figure 904.4 (Exception) Alteration of Sales and Service Counters.

A plan view shows a portion of a counter 24 inches (610 mm) long minimum at which is centered the long dimension of clear floor or ground space.

Figure 1002.4.4.3 Protrusions in Wheelchair Spaces in Amusement Rides.

An elevation drawing of a person seated in a wheelchair on an amusement ride shows that objects may protrude 6 inches (150 mm) maximum along the front of the wheelchair space where located 9 inches (230 mm) minimum and 27 inches (685 mm) maximum above the floor or ground surface of the wheelchair space. Objects may protrude a distance of 25 inches maximum along the front of the wheelchair space, where located more than 27 inches above the floor or ground surface.

Figure 1003.3.1 Boat Slip Clearance.

Pier clearances are shown in plan view. Accessible boat slips are served by clear pier space 60 inches (1525 mm) long minimum and at least as long as the accessible boat slips. Every 10 feet (3050 mm) maximum of linear pier edge serving the accessible boat slips contains at least one continuous clear opening 60 inches (1525 mm) minimum long.

Figure 1003.3.1 (Exception 1) Clear Pier Space Reduction at Boat Slips.

A plan view shows that the width of the clear pier space can be 36 inches (915 mm) wide minimum for a length of 24 inches (610 mm) maximum where multiple 36 inch (915 mm) wide segments are separated by clear segments 60 by 60 inches (1525 by 1525 mm) minimum.

Figure 1003.3.1 (exception 2) Edge Protection at Boat Slips.

An elevation drawing shows pier edge protection that is 4 inches (100 mm) high maximum and 2 inches (51 mm) thick maximum.

Figure 1003.3.2 Boarding Pier Clearance.

Pier clearances are shown in plan view. Accessible boarding pier at a boat launch ramp has clear pier space 60 inches (1525 mm) long minimum, the full length of the boarding pier. Every 10 feet (3050 mm) maximum of linear pier edge contains at least one continuous clear opening 60 inches (1525 mm) long minimum.

Figure 1003.3.2 (Exception 1) Clear Pier Space Reduction at Boarding Piers.

Figure 1003.3.2 (Exception 2) Edge Protection at Boarding Piers.

An elevation drawing shows pier edge protection that is 4 inches (100 mm) high maximum and 2 inches (51 mm) thick maximum.

Figure 1005.3.2 Extended Ground or Deck Surface at Fishing Piers and Platforms.

Figure (a) is a side elevation drawing and figure (b) is a front elevation drawing of edge protection at fishing piers. Where a railing or guard is 34 inches (865 mm) high maximum, edge protection is not required if the deck surface extends 12 inches (305 mm) minimum beyond the inside face of the railing. Toe clearance must be at least 9 inches (230 mm) high beyond the railing and at least 30 inches (760 mm) wide.

Figure 1007.3.2 Golf Club Reach Range Are.

A plan view shows a person using a wheelchair reaching a golf ball. The wheelchair space is 48 inches (1220 mm) long minimum and 36 inches (915 mm) wide minimum, having a running slope not steeper than 1:20. The golf ball are is 36 inches (915 mm) maximum from the wheelchair clear space.

Figure 1008.3.1 Transfer Platforms.

Figure (a) is an elevation drawing showing a transfer platform with a surface height 11 to 18 inches (280 to 455 mm) above the ground. Figure (b) is a plan view of the platform having a depth of 14 inches (355 mm) minimum and a width of 24 inches (610 mm) minimum. A clear ground space that is 48 inches (1220 mm) long minimum is centered on this dimension parallel to the 24 in (610 mm) minimum long unobstructed side of the transfer platform.

Figure 1008.3.2 Transfer Steps.

Figure (a) is an elevation drawing of a transfer step 8 inches (205 mm) high maximum. Figure (b) is a plan view of a transfer step that is 14 inches (355 mm) deep minimum and 24 inches (610 mm) long minimum.

Figure 1009.2.2 Pool Lift Seat Location.

A plan view shows pool lift seat located over the deck 16 inches minimum from the edge of the pool, measured to the seat centerline.

Figure 1009.2.3 Clear Deck Space at Pool Lifts.

A plan view of clear deck space at pool lifts shows a clear deck space 36 inches (915 mm) wide minimum and 48 inches (1220 mm) long minimum is shown parallel to the seat, on the side of the seat opposite the water. The 48-inch length extends from a line located 12 inches behind the rear edge of the seat.

Figure 1009.2.4 Pool Lift Seat Height.

An elevation drawing shows pool lift seat height to be 16 to 19 inches (405 to 485 mm) measured from the deck to the top of the seat surface when in the raised (load) position.

Figure 1009.2.8 Pool Lift Submerged Depth.

An elevation drawing shows a pool lift with the surface of the seat submerged to a water depth of 18 inches (455 mm) minimum below the stationary water level.

Figure 1009.3.2 Sloped Entry Submerged Depth.

An elevation drawing shows a sloped entry with a submerged depth of 24 to 30 inches (610 to 760 mm) below the stationary water level at the landing.

Figure 1009.3.3 Handrails for Sloped Entry.

An elevation drawing of a sloped entry shows handrails on both sides that provide a clear width of 33 to 38 inches (840 to 965 mm).

Figure 1009.4.1 Clear Deck Space at Transfer Walls.

A plan view shows clear deck space of 60 by 60 inches (1525 by 1525 mm) minimum adjacent to a transfer wall. Figure (a) shows this space centered at one grab bar. Figure (b) shows this space centered on the clearance between two grab bars.

Figure 1009.4.2 Transfer Wall Height.

An elevation drawing shows the height of a transfer wall as 16 to 19 inches (405 to 485 mm) measured from the deck.

Figure 1009.4.3 Depth and Length of Transfer Walls.

A plan view shows a transfer wall with a depth of 12 to 16 inches (305 to 405 mm) and a length of 60 inches (1525 mm) minimum.

Figure 1009.4.5 Grab Bars for Transfer Walls.

Grab bars at transfer walls are shown perpendicular to the pool wall and extending the full depth of the transfer wall. Figure (a) shows in plan view two grab bars with a clearance between them of 24 inches (610 mm) minimum. Figure (b) shows in plan view one grab bar with a clearance of 24 inches (610 mm) minimum on both sides. Figure (c) shows in side elevation a height of the grab bar gripping surface 4 to 6 inches (100 to 150 mm) above the wall, measured to the top of the gripping surface.

Figure 1009.5.1 Size of Transfer Platform.

A plan view shows a transfer platform at the top of a series of transfer steps leading down into the water. The platform at the top has a clear depth of 19 inches (485 mm) minimum and a clear width of 24 inches (610 mm) minimum.

Figure 1009.5.2 Clear Deck Space at Transfer Platform.

A plan view shows clear deck space 60 by 60 inches (1525 by 1525 mm) minimum at the base of the transfer platform surface that is centered along a 24 inch minimum unobstructed side of the transfer platform.

Figure 1009.5.4 Transfer Steps.

An elevation drawing shows transfer system steps that are 8 inches (205 mm) high maximum which extend to a water depth of 18 inches (455 mm) minimum below the stationary water level.

Figure 1009.5.6 Size of Transfer Steps.

A plan view shows a transfer system with each step having a tread clear depth of 14 to 17 inches (355 to 430 mm) and a tread clear width of 24 inches (610 mm) minimum.

Figure 1009.5.7 Grab Bars.

Two elevation drawings show grab bars at transfer systems. Figure (a) shows individual grab bars on the platform and each step with the top of the gripping surface 4 to 6 inches (100 to 150 mm) above each step and transfer platform. Figure (b) shows a continuous grab bar with the top of the gripping surface 4 to 6 inches (100 to 150) above the step nosing and transfer platform.