ADA Bathroom Dimensions In general, minimum accessible bathroom size is 60 inches wide by 56 inches deep plus clearance space for fixtures. Adding more fixtures or door swings will demand more space and a larger bathroom.

60 inches
An unobstructed turning space 27 inches high and at least 60 inches in diameter is required inside the restroom for voters who use wheelchairs. No door may swing into this space more than 12 inches except the door to the accessible toilet compartment.

An average sized bathroom is anywhere between 36-40 square feet for an apartment or small home. This size is the general size as it encompasses both ¾ baths as well as full baths, giving you just about enough room for a shower, a bath, a sink and a toilet.

For 1-25 occupants, you would need 1 for male, 1 for female. As the occupancy load increases, so does the number of toilets and lavatories requirements. Furthermore, the ADA Regulations stipulate you need at least one ADA restroom per gender.

How big the bathroom should be will mainly depend on family requirements and practical use. On average a 1,900 – 2,100 square feet three bedroom house will have 2 full and 1 half bathrooms.

The old ‘Standard Height’ and the new ‘ADA Toilet Height’ (ADA stands for Americans with Disabilities Act). Standard toilet height is 15 – 16 1/8 inches from the floor to seat top. ADA toilet height is 17 – 19 inches from floor to seat top.

The minimum number of parking spaces depends on the size of the parking lot and is subject to change. However, based on ADA standards, for lots with one to 25 spaces , there must be at least one designated handicapped parking space. The number increases with the size of the lot, requiring roughly one handicapped spot per 25 spaces.