User:Prakashsaravanan/sandbox

Stair Measurement:

The rise height of each step is measured from the top one tread to the next. it is not the physical height of the riser, the latter excludes the thickness of the tread. The tread depth is measured from the edge of the nosing to the vertical riser. The going is measure from the edge of the nosing to the edge of nosing in plan view. A person using the stairs would move this distance forward with each step they take. The total run or total going of the stairs is the horizontal distance from the first riser to the last riser. It is often not simply the sum of the individual tread lengths due to the nosing overlapping between treads. The slope or pitch of the stair is the total rise divided by the total run. it is called sometimes rake of the stairs. Headroom is the height above the nosing of a tread to the ceiling above it. To avoid confusion, the number of steps in a set of stairs is always the number of risers, not the number of treads. The easiest way to calculate the rise and run is to use a stair stringer calculator.
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