Single and multi flight stairs Flashcards
The run of a flight of stairs is a horizontal measurement from the ______ to the ________?
- Edge of top nosing
- Edge of bottom nosing
The rise of a flight of stairs is a vertical measurement from _______ to the ________?
- Top of finish floor
- Top of finish floor
What is maximum unit rise for a residence?
200mm
What is minimum unit rise for for a residence?
125mm
What is maximum unit run for a residence?
355mm
What is minimum unit run for a residence?
255mm
if the minimum unit run is used, a nosing must be provided?
False
What stair slopes do most textbooks recommend?
30-35 degrees
What is maximum rise for a single flight of stairs?
3700mm
What is the minimum effective depth required for a notched stringer?
90mm
What are the minimums and maximums heights for installation of handrails for a stair?
865mm-1070mm measured vertically above the line of flight
Guards should be installed at a minimum height of ______ (public) and ______ (residential) above a landing?
- 1070mm
- 900mm
A unit rise of __mm or ___ inches is considered good.
- 180
- 7 1/8
When using the framing square to lay out stairs, the unit of rise should be held on the ______ of the square.
tongue
What is the minimum bearing length for a stringer supported on a landing platform?
A full level cut of the stringer at floor line