Stair landing requirements

What is the minimum length for a stair landing? How big should a stair landing be? Is landing always required at the top and bottom of stairs?

This stairway landing or platform dimension is often also expressed as a minimum of 36-inches in the direction of travel. The landing should be at least as wide as the stairway that it serves. A landing is required every 12′ of vertical stairway rise. Rungs, cleats, and steps of portable ladders and fixed ladders should be a minimum of inches (cm) apart and no larger than inches (cm) apart, as measured between center lines of the rungs, cleats, and steps.

Beyond that requirement, the IRC does not establish what materials can be used as a landing. If the distance between floor levels exceed 1inches, the flight of stairs would require a level landing somewhere in-between to break up the flight of stairs. Where the stairway has a straight run, the depth in the direction of travel shall be not less than inches (9mm). Every required stairway shall have a headroom clearance of not less than feet inches. Such clearances shall be established by measuring vertically from a plane parallel and tangent to the stairway tread nosing to the soffit above at all points.

Stairway walking surface. Every landing shall have a minimum width measured perpendicular to the direction of travel equal to the width of the stairway. Doors opening onto a landing shall not reduce the landing to less than one-half the required width.

International Building Code (IBC). These sections give requirements on design criteria such as egress width and capacity, allowable riser height, allowable tread depth, headroom, landing size, and stair construction. In summary, OSHA-compliant fixed stairs must have: Treads (the horizontal stair element you step on) that are at least inches in depth and no more than inches.

Top of gripping surfaces of handrails shall be 8mm ( ft) minimum and 9mm ( ft) maximum vertically above walking surfaces, ramp surfaces, and stair nosings. Risers cannot be open, but perforations or openings in riser surfaces that prohibit passage of a sphere not more than ½ inch in diameter are acceptable. There shall be a floor or landing at the top and bottom of each stairway.

Landings for stairways. The width of each landing shall not be less than the stairway served. A flight of stairs. Free 2-day Shipping On Millions of Items.

As per the code specifications, the maximum vertical height of 1inches (feet inches) should be provided between landings or floor levels for a flight of stairs. These stairs must have a 22-inch wide and 30-inch deep landing for every feet of vertical rise and be set at an angle between and degrees from the horizontal. OSHA requirements for stairs used during construction apply to any stairs , fixed or temporary, that construction employees may use. There is no reason why setting the stairs on a landing which moves marginally over the seasons is a problem. Yes, a hinge moment is created at the stair case connection to the ledger.

But other than temporarily generating some stress on the joint that consists of numerous bolts and backing boards it is not about to give way. A mid level landing is required as per design specifications. The height of the second floor is 1inches above the first floor. On any given flight of stairs , all steps shall have uniform riser heights and uniform tread widths. Open risers are not permitted.

Every staircase should have a landing at the top and bottom. PHOTO and the minimum clear width of the stairway at and below the handrail height, including treads and landings , shall not be less than 31. The minimum depth, measured in the direction of travel, is inches.