ADAAG Manual

Clear Floor Space [4.16.2]

ADAAG (Figure 28) specifies the amount of space required at an accessible toilet, not the minimum room size, which must also include turning space, clear floor space at other provided fixtures, door swing and maneuvering clearance at the door (see pages 83‒89). No distinction is made between floor- and wall-mounted water closets as is the case with toilet stalls where space is more confined. Note that:

• the toilet may be located to the left or the right of the required clear floor space

• doors cannot swing into the clear floor space required at any fixture

• the 18 inch water closet centerline is absolute

The 18 inch dimension is measured from the finished wall surface; the thickness of the finish must be considered when the plans are dimensioned.

ADAAG Figure 28 illustrates minimum requirements for clear floor space. Space at least 60 inches wide is necessary for side transfers and when provided a 56 inch depth is permitted for either a forward or side approach because of the maneuvering space available beside the water closet.

If the lavatory is located less than 42 inches from the toilet centerline, a side transfer is not possible. Clear floor space less than 60 inches wide is dimensioned in length specifically for diagonal or perpendicular transfers based on the approach.