11B-608 Shower compartments

11B-608.1 General.

Shower compartments shall comply with Section 11B-608.

Advisory 11B-608.1 General. Shower stalls that are 60 inches (1525 mm) wide and have no curb may increase the usability of a bathroom because the shower area provides additional maneuvering space. ◼

11B-608.2 Size and clearances for shower compartments.

Shower compartments shall have sizes and clearances complying with Section 11B-608.2.

11B-608.2.1 Transfer type shower compartments.

Transfer type shower compartments shall be 36 inches (914 mm) by 36 inches (914 mm) clear inside dimensions measured at the center points of opposing sides and shall have a 36 inch (914 mm) wide minimum entry on the face of the shower compartment. Clearance of 36 inches (914 mm) wide minimum by 48 inches (1219 mm) long minimum measured from the control wall shall be provided. Transfer type shower compartments shall be permitted in transient lodging guest rooms, multibedroom housing units in undergraduate student housing and residential dwelling units; and shall not be permitted at other locations to meet the requirements of Section 11B-213.3.6.

[2010 ADA Standards] 608.2.1 Transfer Type Shower Compartments. Transfer type shower compartments shall be 36 inches (915 mm) by 36 inches (915 mm) clear inside dimensions measured at the center points of opposing sides and shall have a 36 inch (915 mm) wide minimum entry on the face of the shower compartment. Clearance of 36 inches (915 mm) wide minimum by 48 inches (1220 mm) long minimum measured from the control wall shall be provided.

A plan view shows the shower compartment is 36 inches by 36 inches, with a shower seat opposite the control wall, and grab bars on the back wall and control wall; clear floor space at the shower for transfer indicated to be 36 inches wide and 48 inches minimum in length; small print beneath the image reads: Note: inside finished dimensions at the center points of opposing sides

FIGURE 11B-608.2.1 TRANSFER TYPE SHOWER COMPARTMENT SIZE AND CLEARANCE

11B-608.2.2 Standard roll-in type shower compartments.

Standard roll-in type shower compartments shall be 30 inches (762 mm) wide minimum by 60 inches (1524 mm) deep minimum clear inside dimensions measured at center points of opposing sides with a full opening width on the long side.

[2010 ADA Standards] 608.2.2 Standard Roll-In Type Shower Compartments. Standard roll-in type shower compartments shall be 30 inches (760 mm) wide minimum by 60 inches (1525 mm) deep minimum clear inside dimensions measured at center points of opposing sides and shall have a 60 inches (1525 mm) wide minimum entry on the face of the shower compartment.

11B-608.2.2.1 Clearance.

A 36 inch (914 mm) wide minimum by 60 inch (1524 mm) long minimum clearance shall be provided adjacent to the open face of the shower compartment.

[2010 ADA Standards] 608.2.2.1 Clearance. A 30 inch (760 mm) wide minimum by 60 inch (1525 mm) long minimum clearance shall be provided adjacent to the open face of the shower compartment.

Exception: Reserved.

[2010 ADA Standards] EXCEPTION: A lavatory complying with 606 shall be permitted on one 30 inch (760 mm) wide minimum side of the clearance provided that it is not on the side of the clearance adjacent to the controls or, where provided, not on the side of the clearance adjacent to the shower seat.

A plan view shows the shower compartment is 30 inches minimum by 60 inches minimum with a 60 inch wide entry on the face of the compartment. A clear floor space 36 inches side is provided adjacent to the open face of the compartment. A seat is shown on one end.

Note: inside finished dimensions measured at the center points of opposing sides.

FIGURE 11B-608.2.2 STANDARD ROLL-IN TYPE SHOWER COMPARTMENT SIZE AND CLEARANCE ‡‡

11B-608.2.3 Alternate roll-in type shower compartments.

Alternate roll-in type shower compartments shall be 36 inches (914 mm) wide and 60 inches (1524 mm) deep minimum clear inside dimensions measured at center points of opposing sides. A 36 inch (914 mm) wide minimum entry shall be provided at one end of the long side of the compartment.

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

Note: inside finished dimensions measured at the center points of opposing sides.

FIGURE 11B-608.2.3 ALTERNATE ROLL-IN TYPE SHOWER COMPARTMENT SIZE AND CLEARANCE

11B-608.3 Grab bars.

Grab bars shall comply with Section 11B-609 and shall be provided in accordance with Section 11B-608.3. Where multiple grab bars are used, required horizontal grab bars shall be installed at the same height above the finish floor. Where separate grab bars are required on adjacent walls at a common mounting height, an L-shaped or U-shaped grab bar meeting the dimensional requirements of Section 11B-608.3.2 or 11B-608.3.3 shall be permitted.

[2010 ADA Standards] 608.3 Grab Bars. Grab bars shall comply with 609 and shall be provided in accordance with 608.3. Where multiple grab bars are used, required horizontal grab bars shall be installed at the same height above the finish floor.

Exceptions:

1. Reserved.

[2010 ADA Standards] 1. Grab bars shall not be required to be installed in a shower located in a bathing facility for a single occupant accessed only through a private office, and not for common use or public use provided that reinforcement has been installed in walls and located so as to permit the installation of grab bars complying with 608.3.

2. In residential dwelling units, grab bars shall not be required to be installed in showers located in bathing facilities provided that reinforcement has been installed in walls and located so as to permit the installation of grab bars complying with Section 11B-608.3.

11B-608.3.1 Transfer type shower compartments.

In transfer type compartments, grab bars shall be provided across the control wall and back wall to a point 18 inches (457 mm) from the control wall.

a plan view drawing of a transfer shower; the grab bar extends the length of the control wall and around the corner of the back wall for 18" from the control wall. The shower seat is on the seat wall opposite the control wall.

FIGURE 11B-608.3.1 GRAB BARS FOR TRANSFER TYPE SHOWERS

11B-608.3.2 Standard roll-in type shower compartments.

Grab bars shall be provided on the back wall and the side wall opposite the seat. Grab bars shall not be provided above the seat. Grab bars shall be installed 6 inches (152 mm) maximum from adjacent walls.

[2010 ADA Standards] 608.3.2 Standard Roll-In Type Shower Compartments. Where a seat is provided in standard roll-in type shower compartments, grab bars shall be provided on the back wall and the side wall opposite the seat. Grab bars shall not be provided above the seat. Where a seat is not provided in standard roll-in type shower compartments, grab bars shall be provided on three walls. Grab bars shall be installed 6 inches (150 mm) maximum from adjacent walls.

(a) reserved

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 maximum from the adjacent wall.

(b) with seat

FIGURE 11B-608.3.2 GRAB BARS FOR STANDARD ROLL-IN TYPE SHOWER ‡‡

11B-608.3.3 Alternate roll-in type shower compartments.

In alternate roll-in type shower compartments, grab bars shall be provided on the back wall and the side wall farthest from the compartment entry. Grab bars shall not be provided above the seat. Grab bars shall be installed 6 inches (152 mm) maximum from adjacent walls.

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 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 maximum from the back wall.

FIGURE 11B-608.3.3 GRAB BARS FOR ALTERNATE ROLL-IN TYPE SHOWERS

11B-608.4 Seats.

A folding seat shall be provided in roll-in type showers and transfer type shower compartments. Seats shall comply with Section 11B-610.

[2010 ADA Standards] 608.4 Seats. A folding or non-folding seat shall be provided in transfer type shower compartments. A folding seat shall be provided in roll-in type showers required in transient lodging guest rooms with mobility features complying with 806.2. Seats shall comply with 610.

Exception: In residential dwelling units, seats shall not be required in shower compartments provided that reinforcement has been installed in walls so as to permit the installation of seats complying with Section 11B-608.4.

ETA Editor's Note

Unlike 2010 ADA Standards, CBC requires a folding seat at all accessible showers, unless the Exception above is applicable.

11B-608.5 Controls.

Controls, faucets, and shower spray units shall comply with Section 11B-309.4. Controls and faucets shall allow the user to close and open the water supply.

[2010 ADA Standards] 608.5 Controls. Controls, faucets, and shower spray units shall comply with 309.4.

11B-608.5.1 Transfer type shower compartments.

In transfer type shower compartments, the controls, faucets, and shower spray unit shall be installed on the side wall opposite the seat 38 inches (965 mm) minimum and 48 inches (1219 mm) maximum above the shower floor and shall be located on the control wall 15 inches (380 mm) maximum from the centerline of the seat toward the shower opening.

Elevation drawing of a shower compartment showing controls to be mounted between 38 inches minimum and 48 inches maximum above the shower floor and shall be on the control wall 15 inches maximum from the centerline of the seat

FIGURE 11B-608.5.1 TRANSFER TYPE SHOWER COMPARTMENT CONTROL LOCATION

11B-608.5.2 Standard roll-in type shower compartments.

In standard roll-in type shower compartments, the controls, faucets, and the shower spray unit shall be located on the back wall of the compartment adjacent to the seat 16 inches (406 mm) minimum and 27 inches (686 mm) maximum from the seat wall; and shall be located above the grab bar, but no higher than 48 inches (1219 mm) above the shower floor.

[2010 ADA Standards] 608.5.2 Standard Roll-In Type Shower Compartments. In standard roll-in type shower compartments, the controls, faucets, and shower spray unit shall be located above the grab bar, but no higher than 48 inches (1220 mm) above the shower floor. Where a seat is provided, the controls, faucets, and shower spray unit shall be installed on the back wall adjacent to the seat wall and shall be located 27 inches (685 mm) maximum from the seat wall.

(a) reserved

Figure (b) is an elevation drawing of a compartment with a seat. The measurements for the controls are shown updated and enclosed in a cloud bubble to indicate the change.

(b) with seat

FIGURE 11B-608.5.2

STANDARD ROLL-IN TYPE SHOWER COMPARTMENT CONTROL LOCATION

ETA Editor's Note

The CBC requirements for positioning controls in standard roll-in shower compartments are more restrictive than 2010 ADA Standards.

11B-608.5.3 Alternate roll-in type shower compartments.

In alternate roll-in type shower compartments, the controls, faucets, and shower spray unit shall be located on the side wall of the compartment adjacent to the 16 inches (406 mm) minimum and 27 inches (686 mm) maximum from the seat wall or shall be located on the back wall opposite the seat 15 inches (381 mm) maximum, left or right of the centerline of the seat. The controls, faucets, and shower spray units shall be located above the grab bar, but no higher than 48 inches (1219 mm) above the shower floor.

[2010 ADA Standards] 608.5.3 Alternate Roll-In Type Shower Compartments. In alternate roll-in type shower compartments, the controls, faucets, and shower spray unit shall be located above the grab bar, but no higher than 48 inches (1220 mm) above the shower floor. Where a seat is provided, the controls, faucets, and shower spray unit shall be located on the side wall adjacent to the seat 27 inches (685 mm) maximum from the side wall behind the seat or shall be located on the back wall opposite the seat 15 inches (380 mm) maximum, left or right, of the centerline of the seat. Where a seat is not provided, the controls, faucets, and shower spray unit shall be installed on the side wall farthest from the compartment entry.

four drawings, arranged in two rows of two drawings each, with the top row showing drawing a on the left and drawing b on the right; the lower row shows drawing c on the left and drawing d on the right. (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 above the shower floor, and extending 16" minimum and 27 inches 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 above the shower floor, and extending from the side wall to 15 inches maximum from the center line of the seat. Figure (c) Reserved-Model Code Figure Not Applicable. Figure (d) is a plan view of compartment with a seat.

FIGURE 11B-608.5.3

ALTERNATE ROLL-IN TYPE SHOWER COMPARTMENT CONTROL LOCATION

ETA Editor's Note

The CBC requirements for positioning controls in alternate roll-in shower compartments are more restrictive than 2010 ADA Standards.

11B-608.6 Shower spray unit and water.

A shower spray unit with a hose 59 inches (1499 mm) long minimum that can be used both as a fixed-position shower head and as a hand-held shower shall be provided. The shower spray unit shall have an on/off control with a non-positive shut-off. If an adjustable-height shower head on a vertical bar is used, the bar shall be installed so as not to obstruct the use of grab bars. Shower spray units shall deliver water that is 120°F (49°C) maximum.

Exception: Where subject to excessive vandalism, two fixed shower heads shall be permitted instead of a hand-held spray unit in facilities that are not medical care facilities, long-term care facilities, transient lodging guest rooms, or residential dwelling units. Each shower head shall be installed so it can be operated independently of the other and shall have swivel angle adjustments, both vertically and horizontally. One shower head shall be located at a height of 48 inches (1219 mm) maximum above the shower finish floor.

[2010 ADA Standards] EXCEPTION: A fixed shower head located at 48 inches (1220 mm) maximum above the shower finish floor shall be permitted instead of a hand-held spray unit in facilities that are not medical care facilities, long-term care facilities, transient lodging guest rooms, or residential dwelling units.

Advisory 11B-608.6 Shower spray unit and water. Ensure that hand-held shower spray units are capable of delivering water pressure substantially equivalent to fixed shower heads. ◼

ETA Editor's Note
The 2010 ADA Standards Exception at 608.6 does not require the consideration of excessive vandalism or the installation of two shower heads where fixed ones are provided. Therefore, the CBC requirements are more stringent.

11B-608.7 Thresholds.

Thresholds in roll-in type shower compartments shall be ½ inch (12.7 mm) high maximum in accordance with Section 11B-303. In transfer type shower compartments, thresholds ½ inch (12.7 mm) high maximum shall be beveled, rounded, or vertical.

Exception: A threshold 2 inches (51 mm) high maximum shall be permitted in transfer type shower compartments in existing facilities where provision of a ½ inch (12.7 mm) high threshold would disturb the structural reinforcement of the floor slab.

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2022 California Standards for Accessible Design Guide (effective January 1, 2023)