Toilet and Bathing Room Locations and Counts in the ADA - Basic
Commercial Toilet Room
Whether new construction or alterations of existing facilities, the ADA has significant regulations for the locations and counts of toilet rooms and bathing rooms. The photo on the right is representative of a toilet room.
Where toilet rooms are provided in public accommodations and state or local government facilities, each toilet room should comply with ADA Standards. Where bathing rooms are provided, each bathing room shall comply with the ADA Standards. There are four (4) exceptions to these Standards. Exceptions 1 and 2 below apply to alterations. Exceptions 3 and 4 apply to new construction.
Exception: 1. In alterations where it is technically infeasible to comply with the ADA Standard, altering existing toilet or bathing rooms is not required where a single unisex toilet room or bathing room complying with the ADA Standards is provided and located in the same area and on the same floor as existing inaccessible toilet or bathing rooms.
Exception 2. Where exceptions for alterations to qualified historic buildings or facilities are permitted by the ADA Standards, no fewer than one toilet room for each sex or one unisex toilet room should be provided.
Technically infeasible is defined with respect to an alteration of a building or a facility, as something that has little likelihood of being accomplished because existing structural conditions would require removing or altering a load-bearing member that is an essential part of the structural frame; or because other existing physical or site constraints prohibit modification or addition of elements, spaces, or features that are in full and strict compliance with the minimum requirements.
Regarding Exceptions 1 and 2 above, these requirements allow the use of unisex (or single-user) toilet rooms in alterations when technical infeasibility can be demonstrated. Unisex toilet rooms benefit people who use opposite sex personal care assistants. For this reason, it is advantageous to install unisex toilet rooms in addition to accessible single-sex toilet rooms in new facilities.
Exception 3. Where multiple single user portable toilet or bathing units are clustered at a single location [for new construction], no more than 5 percent [5%] of the toilet units and bathing units at each cluster should be required to comply with the ADA Standards. Portable toilet units and bathing units complying with the ADA Standards should be identified by the International Symbol of Accessibility” The 5% rule applies to each type (Men, Women, or Unisex) in each cluster.
Exception 4. Where multiple single user toilet rooms are clustered at a single location [for new construction], no more than 50 percent [50%] of the single user toilet rooms for each use at each cluster shall be required to comply with the ADA Standards. This 50% rule applies to each type of toilet room, such as Men, Women, and Unisex. Note that Unisex toilet rooms cannot be used in these counts to substitute for Mens or Womens toilet rooms.
Regarding Exceptions 3 and 4 above, a cluster is a group of toilet rooms or bathing rooms in close proximity to one another and located on the same route or corridor. Generally, toilet rooms in a cluster are within sight of, or adjacent to, one another. The floor plan in the diagram below represents clustered toilet rooms.
For bathing rooms, in new construction all bathing rooms must comply with the ADA Standards and the only exception being for portable units, in which case the 5% rule will apply. The 50% rule never applies to bathing rooms.
Where bathtubs or showers are provided, at least one bathtub complying with the ADA Standards or at least one shower complying with the ADA Standards] should be provided. This bathtub or shower can be a roll-in shower, alternate roll-in shower, transfer shower, bathtub, or combination transfer/roll-in shower (required in some transient lodging rooms). The diagram below is representative of a bathing facility with an accessible bathtub accessed using a parallel approach.
In Transient Lodging Guest Rooms there is a requirement for a portion of accessible guest rooms to have roll-in showers (with folding seats). Guest rooms with mobility features complying with the ADA Standards should be provided in accordance with Table 224.2 of the ADA Standards. Table 224.2 is shown below.
Table 224.2
