Minimum Stair Headroom Clearance

Clause 4 2 10 should be referred to for exceptions where a private stair should meet the above recommendations for any other stair.

Minimum stair headroom clearance.

Headroom on stairs and ramps. Headroom clearance 1 except as provided by sentences 2 4 and 5 every exit shall have a clear height over the clear width of theexit of not less than 2 100 mm. 2 the clear height of stairways shall be measured vertically over the clear width of the stairway from a straight line tangent to the tread and landing nosings to the. Maximum 12 3 vertical height rise for a flight of stairs.

What is the minimum headroom clearance for stairs. R311 5 3 stair treads and risers. Handrail graspability to be either type i or ii with a minimum 1 1 2 inch clearance from a wall. Have a minimum headroom above spiral stair treads of at least 6 feet 6 inches 2 m measured from the leading edge of the tread.

Fixed barriers such as guardrails are required where the vertical clearance is less than 80 such as at open stairways and along sloped or curved. The ontario building code headroom clearance 3 4 3 5. Minimum 6 8 headroom height clearance for stairway. Stairways shall have a minimum headroom clearance of 80 inches 2032 mm measured vertically from a line connecting the edge of the nosings.

1910 25 d 4 have a minimum tread depth of 7 5 inches 19 cm measured at a point 12 inches 30 cm from the narrower edge. Ada standards for projecting hazard clearances. Thursday june 14 2018 headroom at stairs cannot be less than 6 feet 8 inches as measured vertically from the sloped line adjoining the tread nosing or platform on that portion of the stairway according to b oth the international residential code irc and the residential edition of. Maximum 7 3 4 inch stair riser height.

Stairway headroom width codes requirements. The minimum headroom in all parts of the stairway shall not be less than 6 feet 8 inches 2036 mm measured vertically from the sloped plane adjoining the tread nosing photo 4 or from the floor surface of the landing or platform. Such headroom shall be continuous above the stairway to the point. Headroom clearance of at least 80 high is required along all circulation paths except at doors and doorways where a 78 minimum clearance is permitted to accommodate door stops and closers.

Stairs shall comply with 504. The distance from the top of the stair tread to the ceiling above measured at the stair tread nose should be six feet eight inches or more. Minimum 10 inch stair tread depth with nosing or minimum 11 inches with no nosing. Stairway headroom should be 6 8 over tread or landing.

This document provides building code specifications sketches photographs and examples of the stair passage width stair overhead clearance or head room needed for indoor or outdoor stairs. Clearances for stair construction inspection. Stairway headroom or overhead clearance.