Stair tread run or horizontal depth.
Standard stair tread and riser dimensions.
Definition of detailed specifications for open riser stairs.
Details are at stair tread dimensions.
For code requirements the minimum staircase width is the horizontal dimension between the sidewalls of a staircase measured above the handrail s.
1 or greater tread is supported by the riser.
Stair riser height and stair tread depth.
Required 1 to 1 1 2 projection beyond the riser face.
All risers and all goings in the same flight of stairs shall be of uniform dimensions within a tolerance of 5 mm.
Inconsistencies or variations in risers or treads could interfere with the rhythm of the individual using.
Width refers to the length of risers and treads from side to side.
8 1 4 to 9 stair tread thickness.
Except where there is a fixed structure within 100 mm of the stairway stile stairways and stairway landings shall be provided with guardrailing on any exposed side.
Stairways guardrail and handrails.
Headroom is the vertical dimension from the stair treads to the ceiling directly above.
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.
Name a z.
It is measured.
Stair riser heights and stair tread depths should be within the parameters of the code to avoid any potential trip hazards for inconsistencies.
Here is a drawing detailing our standard stair tread and riser dimensions.
A uniform flight of stairs provides a safety factor.