Section 1134A — California Building Code (Title 24, Part 2)

1134A.1 General.¶

All bathrooms, bathing and toilet facilities within covered multifamily dwelling units shall comply with this section.

1134A.2 Number of complying bathrooms.¶

Bathrooms shall be designed to comply with one of the following options:

Option 1. All bathrooms within the dwelling unit shall be designed to comply with the following:

1. Toilet, bathing and shower facilities shall comply with Section 1134A.4.

2. Bathtubs shall comply with Section 1134A.5.

3. Showers shall comply with Section 1134A.6.

4. Water closets shall comply with Section 1134A.7.

5. Lavatories, vanities, mirrors and towel fixtures shall comply with Section 1134A.8.

6. Bathrooms shall be provided with an accessible route into and through the bathroom.

7. If a door is provided, it shall comply with the requirements of Section 1132A.5.

8. A minimum 18-inch (457 mm) clear maneuvering space shall be provided on the swing side of the door at the strike edge of the door.

9. Switches, outlets and controls shall comply with Section 1142A.

10. Reinforced walls to allow for the future installa- tion of grab bars around the toilet, tub and shower shall comply with Sections 1134A.5 for bathtubs, 1134A.6 for showers and 1134A.7 for water clos- ets. Grab bars shall comply with Sections 1127A.4- and 1127A.2.2, Item 4.

Option 2. Only one bathroom within the dwelling unit shall be designed to comply with the following:

1. Toilet, bathing and shower facilities shall comply with Section 1134A.4.

2. Bathtubs shall comply with Section 1134A.5.

3. Showers shall comply with Section 1134A.6.

4. Water closets shall comply with Section 1134A.7.

5. Lavatories, vanities, mirrors and towel fixtures shall comply with Section 1134A.8.

6. Where both a tub and shower are provided in the bathroom, at least one shall be made accessible. Additional requirements apply to dwelling units containing two or more bathrooms when a bathtub is provided as the accessible bathing fixture.

Where two or more bathrooms are provided within the same dwelling unit and a bathtub is installed to comply with Option 2, Item 6 in one bathroom and a shower stall is provided in a sub- sequent bathroom, both the bathtub selected to comply with Option 2, Item 6 and at least one shower stall within the dwelling unit shall meet all the applicable accessibility requirements provided

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in Section 1134A. (See Section 1134A.5 for bath- tubs, or Section 1134A.6 for showers.)

7. When two or more lavatories are provided, at least one shall be made accessible and comply with Section 1134A.8.

8. Bathrooms shall be provided with an accessible route into and through the bathroom.

9. If a door is provided, it shall comply with the requirements of Section 1132A.5.

10. A minimum 18-inch (457 mm) clear maneuvering space shall be provided on the swing side of the door at the strike edge of the door.

11. Switches, outlets and controls shall comply with Section 1142A.

12. Reinforced walls to allow for the future installa- tion of grab bars around the toilet, tub and shower shall comply with Sections 1134A.5 for bathtubs, 1134A.6 for showers and 1134A.7 for water clos- ets. Grab bars shall comply with Sections 1127A.4 and 1127A.2.2, Item 4.

When Option 2 is used, all additional bathrooms must comply with Items 8 through 12 above.

1134A.3 Powder rooms.¶

All powder rooms shall be designed to comply with Section 1134A.2, Option 2, Items 8 through 12. When the powder room is the only toilet facility located on an accessible level, it shall comply with the Option 2 items listed above, plus all additional requirements located in Sec- tions 1134A.4, 1134A.7 and 1134A.8.

1134A.4 Sufficient maneuvering space.¶

Bathing and toilet facilities required to be adaptable shall provide sufficient maneuvering space for a person using a wheelchair or other mobility aid to enter and close the door, use the fixtures, reopen the door and exit.

Where the door swings into the bathroom or powder room, there shall be a clear maneuvering space outside the swing of the door of at least 30 inches by 48 inches (762 mm by 1219 mm) within the room. The clear maneuvering space shall allow the user to position a wheelchair or other mobility aid clear of the path of the door as it is closed and to permit use of fixtures.

Doors may swing into the required clear space at any fix- ture when a clear maneuvering space is provided outside the swing arc of the door so it can be closed.

Maneuvering spaces may include any knee space or toe space available below bathroom fixtures.

1134A.5 Bathtubs.¶

Bathtubs required to be accessible shall comply with this section.

1. Floor space. There shall be a minimum clear floor space 48 inches parallel by 30 inches perpendicular (1219 mm by 762 mm) to the side of a bathtub or bath- tub-shower combination to provide for the maneuver- ing of a wheelchair and transfer to and from the bathing facilities. The controls shall be on the wall at the foot of the bathtub. The edge of the clear floor space shall be flush with the control wall surface. The

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area under a lavatory, located at the control end of the tub, may be included in the clear floor space provided the lavatory is 19 inches (483 mm) maximum deep, and the knee and toe space comply with Section 1134A.8. Cabinets under lavatories and toilets shall not encroach into the clear floor space.

2. Reinforced walls for grab bars. A bathtub installed without surrounding walls shall provide reinforced areas for the installation of floor-mounted grab bars.

Where a bathtub is installed with surrounding walls, grab bar reinforcement shall be located on each end of the bathtub, 32 inches to 38 inches (813 mm to 965 mm) above the floor, extending a minimum of 24 inches (610 mm) from the front edge of the bathtub toward the back wall of the bathtub. The grab bar reinforcement shall be a minimum of 6 inches (152.4 mm) nominal in height. (See Figure 11A-9G.)

Grab bar reinforcement shall be installed on the back wall of the bathtub a maximum of 6 inches (152.4 mm) above the bathtub rim extending upward to at least 38 inches (965 mm) above the floor. Grab bar backing shall be installed horizontally to permit the installation of a 48-inch (1219 mm) grab bar with each end a maximum of 6 inches (152.4 mm) from the end walls of the bathtub. The grab bar reinforcement shall be a minimum of 6 inches (152.4 mm) nominal in height.

3. Bathtub controls. Faucet controls and operation mech- anisms shall be operable with one hand and shall not require tight grasping, pinching or twisting of the wrist.

The force required to activate controls shall be no greater than 5 pounds (22.2 N). Lever operated, push type and electronically controlled mechanisms are examples of acceptable designs.

4. Shower unit. A shower spray unit is not required in bathtubs.

5. Bathtub enclosures. Doors and panels of bathtub enclo- sures shall be substantially constructed from approved, shatter-resistant materials. Hinged doors shall open out- ward. Glazing used in doors and panels of bathtub enclosures shall be fully tempered, laminated safety glass or approved plastic. When glass is used, it shall have minimum thickness of not less than ¹ /8 inch (3.17 mm) when fully tempered, or ¹ /4 inch (6.35 mm) when laminated, and shall pass the test requirements of this part, Chapter 24, Glass and Glazing. Plastics used in doors and panels of bathtub enclosures shall be of a shatter-resistant type.

1134A.6 Showers.¶

Showers required to be accessible shall comply with this section.

1. Size. When one or more shower stalls are provided within the same dwelling units, at least one shower stall comply with one of the following requirements.

1.1. The shower stall shall measure at least 42 inches wide by 48 inches deep (1067 mm by 1219 mm) with an entrance opening of at least 36 inches (914 mm); or

1.2. The shower stall shall measure at least 30 inches deep by 60 inches wide (762 mm by 1524 mm) with an entrance opening of at least 60 inches (1524 mm). A water closet may project a maximum of 12 inches (305 mm) into the open- ing, provided that a minimum of 36 inches (914 mm) clear space is maintained between the water closet and the shower wall as illustrated in Figure 11A-9L or;

1.3. Other shower stall configurations shall mea- sure at least 36 inches deep by 60 inches wide (914 mm by 1524 mm) with an entrance open- ing of at least 36 inches (914 mm) when a wall is installed on the opening side.

2. Slope. The maximum slope of the shower floor shall be 1/2 inch (12.7 mm) per foot in any direction and shall slope to a drain. The floor surfaces shall be of Carbo- rundum or grit-faced tile or of material providing equivalent slip resistance.

3. Floor space . A clear maneuvering space at least 30 inches in width by 48 inches in length (762 mm by 1219 mm) shall be located outside the shower, flush and par- allel to the control wall.

4. Reinforced walls for grab bars. Grab bar reinforce- ment shall be installed continuous in the walls of show- ers 32 inches to 38 inches (813 mm to 965 mm) above the floor. The grab bar reinforcement shall be a mini- mum of 6 inches (152.4 mm) nominal in height.

Glass-walled shower stalls shall provide rein- forcement for installation of floor-mounted or ceil- ing-mounted grab bars.

5. Thresholds. When a threshold is used, it shall be a maximum of 2 inches (50.8 mm) in height and have a beveled or sloped angle not exceeding 1 unit vertical in 2 units horizontal (26.6 degrees from the horizontal). Thresholds ¹ /2 inch (12.7 mm) or less in height may have a beveled or sloped angle not exceeding 1 unit vertical in 1 unit horizontal (45 degrees from the hori- zontal).

6. Shower controls. Faucet controls and operation mech- anisms shall be operable with one hand and shall not require tight grasping, pinching or twisting of the wrist. The force required to activate controls shall be no greater than 5 pounds (22.2 N). Lever operated, push- type and electronically controlled mechanisms are examples of acceptable designs.

7. Shower enclosures. Doors and panels of shower enclo- sures shall be substantially constructed from approved, shatter-resistant materials. Hinged shower doors shall

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open outward. Glazing used in doors and panels of shower enclosures shall be fully tempered, laminated safety glass or approved plastic. When glass is used, it shall have minimum thickness of not less than ¹ /8 inch (3.17 mm) when fully tempered, or ¹ /4 inch (6.35 mm) when laminated, and shall pass the test requirements of this part, Chapter 24, Glass and Glazing. Plastics used in doors and panels of shower enclosures shall be of a shatter-resistant type.

1134A.7 Water closets.¶

Water closets in bathrooms or pow- der rooms required to be accessible shall comply with this section.

1. Floor space and location. The minimum floor space provided at a water closet shall be 48 inches (1219 mm) in clear width. The clear floor space shall extend past the front edge of the water closet at least 36 inches (914 mm). See Figure 11A-9M.

Exception: The 48-inch (1219 mm) minimum clear width may be reduced to 36 inches (914 mm) for lav- atories, cabinets, wing walls or privacy walls located immediately adjacent to a water closet which extend no more than 24 inches (610 mm) in depth.

Water closets shall be located within bathrooms in a man- ner that permits a grab bar to be installed on at least one side of the fixture. The centerline of the water closet shall be 17 inches (432 mm) minimum to 18 inches (457 mm) maximum from a grab bar wall or partition. In locations where water closets are adjacent to non-grab bar walls, vanities, lavato- ries or bathtubs, the centerline of the fixture shall be a mini- mum of 18 inches (457 mm) from the obstacle.

2. Reinforced walls for grab bars. Where the water closet is not placed adjacent to a side wall capable of accom- modating a grab bar, the bathroom shall have provi- sions for installation of floor-mounted, foldaway or similar alternative grab bars.

Where the water closet is placed adjacent to a side wall, reinforcement shall be installed on both sides or one side and the back. If reinforcement is installed at the back, it shall be installed between 32 inches (813 mm) and 38 inches (965 mm) above the floor. The grab bar reinforcement shall be a minimum of 6 inches (152.4 mm) nominal in height. The backing shall be a minimum of 40 inches (1016 mm) in length.

Reinforcement installed at the side of the water closet shall be installed 32 inches to 38 inches (813 mm to 965 mm) above the floor. The reinforcement shall be installed a maxi- mum of 12 inches (305 mm) from the rear wall and shall extend a minimum of 26 inches (660 mm) in front of the water closet. The grab bar reinforcement shall be a minimum of 6 inches (152.4 mm) nominal in height.

3. Seat height. The minimum height of water closet seats shall be 15 inches (381 mm) above the floor.

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4. Water closet controls. Water closet controls shall be mounted no more than 44 inches (1118 mm) above the floor. The force required to activate controls shall be no greater than 5 pounds (22.2 N).

1134A.8 Lavatories, vanities, mirrors and towel fixtures.¶

Bathrooms or powder rooms required to be accessible shall have at least one accessible lavatory. Where mirrors and towel fixtures are provided, at least one of each shall be accessible.

1. Location. Vanities and lavatories shall be installed with the centerline of the fixture a minimum of 18 inches (457 mm) horizontally from an adjoining wall or fixture to allow for forward approach. When parallel approach is provided, lavatories shall be installed with the centerline of the fixture a minimum of 24 inches (610 mm) horizontally from an adjoining wall or fix- ture. The top of the fixture rim shall be a maximum of 34 inches (864 mm) above the finished floor.

2. Floor space. A clear maneuvering space at least 30 inches by 48 inches (762 mm by 1219 mm) shall be pro- vided at lavatories and shall be centered on the lava- tory.

3. Cabinets. Cabinets under lavatories are acceptable provided the bathroom has space to allow a parallel approach by a person in a wheelchair and the lavatory cabinets are designed with adaptable knee and toe space.

4. Knee and toe space. Knee and toe space shall be pro- vided by one of the following:

4.1. The space beneath the lavatory shall be left clear and unobstructed;

4.2. Any cabinet beneath the lavatory shall be removable without the use of specialized knowl- edge or specialized tools; or

4.3. Doors to the cabinet beneath the lavatory shall be removable or openable to provide the required unobstructed knee and toe space.

The knee and toe space shall be centered on the fix- ture, and shall comply with Section 1138A.2. The clear floor space required by Item 2 shall not extend into the knee and toe space more than 19 inches (483 mm). (See Figure 11A-9D.)

5. Finished floor. The finished floor beneath the lavatory shall be extended to the wall.

6. Plumbing protection. Water supply and drain pipes under lavatories shall be insulated or otherwise cov- ered to protect against contact. There shall be no sharp or abrasive surfaces under lavatories.

7. Lavatory faucet controls. Faucet controls and opera- tion mechanisms shall be operable with one hand and shall not require tight grasping, pinching or twisting of the wrist.

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The force required to activate controls shall be no

greater than 5 pounds (22.2 N). Lever operated, push- type and electronically controlled mechanisms are examples of acceptable designs. Self-closing valves are allowed if the faucet remains open for at least 10 sec- onds.

8. Mirrors and towel fixtures. Where mirrors or towel fix- tures are provided they shall be mounted with the bot- tom edge no higher than 40 inches (1016 mm) from the floor.