This page covers all of the important staircase measurements and a mistake to watch out for.
Residential building standard staircase dimensions in feet.
The of all room for human habitation shall not be less than 2 75 m.
So this basically sums up the basic code requirements for residential stairs and their dimensions.
Measure from the surface.
The minimum in most places is 2 feet 8 inches 81 3 cm.
And others not less than 7 5 sq.
Minimum size of side.
Staircase dimensions are an important part of staircase safety.
With a minimum width of 2 1m.
Ii where there are two rooms one of these shall not be less than 9 5 sq.
Maximum 4 1 2 inch handrail projection into stairway width on either side.
The height of room.
Minimum 36 inch clear width for stairway.
Stair details refer to the standard requirements for each of the various components of a flight of stairs.
For more detail please refer to the building code that relates to your area.
The stair s width usually varies depending on the type of building the staircase is in but for a normal residence the standard tends to be 3 feet 6 inches 106 7 cm.
Stair widths are based on the use and occupancy loads of adjacent spaces and must be serviced with handrails on one or both sides depending on the stair width.
If a staircase exceeds 44 inches 111 8 cm handrails are required for both sides.
Standard living room size 9 feet x 10 feet.
It s always a good idea to check with your local building inspector which code you should be following.
Regulated by building codes stair details specify the sizes of risers and treads stair widths the placement of handrails and guardrails and construction methods for fabricating stairs.
Therefore let us recap on the residential stair code requirements.
For stairs serving a single user typically private residential a minimum of 36 91 cm is required.