ADA Restrooms – Design Guidance

Accessibility Requirements

Accessibility requirements as per the 2021 IBC Section 1109 and ANSI Chapter 6.

Codes: 2021 IBC ICC/ANSI A117.1-2003

Fixture Count Requirements

Confirm fixture count based upon:

• Use of Space: IBC Chapter 3
• Occupant Load: IBC Table 1004.1.1

Plan & Elevation Drawing Requirements

Plans must include, but are not limited to:

1. Floor surface. Note any elevation change from adjacent room.
2. Wall surfaces per IBC Section 1210.
3. Floor drain (include trap seal primer).
4. Door width, hardware, direction of swing, handicap signage.
5. Interior room dimensions.
6. The 5 ft. diameter circular space and/or T-shaped space per ANSI 304.2.
7. Partition/stall dimensions and door swings.
8. Toilet and urinal mounting layout:
   • Note handicap seat height (ANSI 604.4)
   • Flush handle location (ANSI 604.6)
9. Grab bars (ANSI 604.5), accessories, and fixtures shown and dimensioned on elevation drawings.
10. Ambulatory stalls (if required) per ANSI 604.9.
11. 30” x 48” interior maneuvering space (past door swing) serving at least one lavatory.
12. Lavatory details:
    • Mounting height
    • Lever handles or sensor faucets
    • Protected pipes
13. Mirror size and height (ANSI 603.3).
14. Towel dispenser location per reach ranges in ANSI 308.
15. Minimum side maneuvering spaces:
    • 18” on pull side
    • 12” on push side of door (ANSI 404.2.3.1)
16. Exhaust fan.
17. Electrical:
    • Lights
    • Switches
    • GFCI receptacle locations
18. 1/2” scale preferred.

Plumbing Design Requirements

1. Provide number of required fixtures. Include calculations.
2. Provide plumbing plan with drain, waste, vent, and supply piping.
3. Provide isometric that matches the plumbing plan. Note all pipe sizes and materials.