ADA Bathroom Layout Guidelines Overview. The ADA bathroom requirements are very specific and detailed with regard to measurements, and they include grab bars, mirrors, showers (where applicable), sink, toilet, toilet paper dispensers, paper towel dispensers, seat cover dispensers, hand soap dispensers and hand dryers. Advisory 402.2 Components. Walking surfaces must have running slopes not steeper than 1:20, see 403.3.Other components of accessible routes, such as ramps (405) and curb ramps (406), are permitted to be more steeply sloped.. Florida requirements of s.553.5041, F.S., incorporated in section 208.3.1 for accessible routes to parking that modify requirements of Chapter 4 must be complied with. fBPgZZl.