Ada Stair Tread Requirements

The ada specification measures from riser to riser essentially excluding the additional amount of tread depth afforded by the tread nosing.

Ada stair tread requirements.

The americans with disabilities act ada founded in 1990 is an american civil rights law that forbids discrimination towards disabled individuals. These handicap handrails and steps will give your business a clean professional look. Each stair tread is 11 inches 280 mm deep minimum with a sloped riser. This ada detail for 11 inch stair tread width refers to what some specifications call stair tread depth the distance from stair nose to stair riser on an individual stair tread.

The ada spells out requirements for stairs in its accessibility for buildings and facilities guidelines. Stair treads shall be no less than 11 in 280 mm wide measured from riser to riser. On any given flight of stairs all steps shall have uniform riser heights and uniform tread widths. An essential component to a building s ada compliance are the stairs up to the building.

Open risers are not permitted. All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. The ibc contains requirements for exit stairway enclosures that address fire resistance and smoke protection stairways and handrails signs and other features. Risers shall be 4 inches 100 mm high minimum and 7 inches 180 mm high maximum.

Requirements for stairways address treads and risers surfaces nosings and handrails. Stair treads shall comply. As part of that law the ada establishes accessibility requirements for construction and alterations of government facilities public spaces and commercial facilities. Treads shall be 11 inches 280 mm deep minimum.

Open risers are not permitted. The ada standards apply requirements for stairways to each stair that is part of a required means of egress 210. Exit stairway enclosures stairways ada standards 210 504. All of our ramps are proudly made in the usa.

4 9 2 treads and risers. Thus ada requirements provide disabled and handicapped people access to buildings both public and private that they would not have otherwise had. These aluminum step systems are code compliant with ibc ada osha stair requirements.