Specifications for stairway overhead clearance.
Headroom clearance for stairs.
Minimum 6 8 headroom height clearance for stairway.
Here are the parameters you have to work within based on the residential edition of the florida building code fbc r305 and the international residential code irc.
Maximum 12 3 vertical height rise for a flight of stairs.
Stairway headroom should be 6 8 over tread or landing.
Stairway headroom should be greater than or equal to six feet eight inches between the stair tread upper surface measured at the tread outer edge and the ceiling above.
1910 25 b 3 stairs have uniform riser heights and tread depths between landings.
Vertical clearance above any stair tread to any overhead obstruction is at least 6 feet 8 inches 203 cm as measured from the leading edge of the tread.
Spiral stairs must meet the vertical clearance requirements in paragraph d 3 of this section.
1 for a room with a sloped ceiling at least half of the ceiling must be a minimum of 7 feet or higher with no part of the required floor area lower than 5 feet.
Stairway headroom or overhead clearance.
Stairway headroom should be 6 8 over tread or landing.
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.
Friday june 15 2018.
Minimum 10 inch stair tread depth with nosing or minimum 11 inches with no nosing.