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What is the OSHA standard for stairs?

What is the OSHA standard for stairs?

Riser height shall be from 6 to 7.5 inches (15.24 to 19.05 cm), stair width a minimum of 22 inches (55.88 cm) between vertical barriers, tread depth a minimum of 12±2 inches (30.48±5.08 cm), and tread nosing shall be straight leading edges.

What is the minimum width for industrial fixed stairs?

22 inches
Fixed stairways must have a minimum width of 22 inches. Fixed stairs must be installed at angles to the horizontal of between 30 degrees and 50 degrees.

What is code for commercial stairs?

Minimum 80 inches of headroom height clearance for stairway. Maximum 12 feet vertical height (rise) for a flight of stairs. Maximum 7 inch stair riser height and minimum 4 inch stair riser height. Minimum 11 inch stair tread depth.

How high can a step be OSHA?

OSHA 1910.25(c)(2) requires standard stairs to have a maximum riser height of 9.5 inches (24 cm). IBC 1011.5. 2 requires that stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum.

What is a stair width?

Stair width. The entire width of your staircase needs to reach a minimum of 36 inches wide. This measurement refers to the distance between both sides of the staircase and does not include the handrails.

What is minimum stair tread depth?

For each rise: minimum 130mm, maximum 225mm. For each going: minimum 215mm, maximum 355mm. The going shall be not greater than the tread depth (TD) plus a maximum gap of 30 mm between the rear edge of one tread and the nosing of the tread above.

What is the code for building stairs?

Building Codes for Stairs Stairs must be at least 36″ wide with a minimum headroom of 6′ 8″ Risers must have a maximum height of 7 ¾” and open risers must be 4″ high or shorter. Each tread in a stair must have a minimum depth of 10″. The treads of curved staircases must not be less than 6″ deep.

What is standard stair width?

36 inches
Staircase width refers to the side-to-side distance if you were walking up or down the stairs. According to the IRC, this distance must be at least 36 inches and does not include handrails.