Thickness Of Stair Tread

The tread depth can go to any maximum as long as the maximum tread in a stairway does not exceed the smallest by over 0 375 inches.
Thickness of stair tread. If the stair treads are. Since wood stairs are the most popular material used in homes today here are three wooden stair tread specifications for your personal reference. Building codes limit variation to 3 8 10 mm the underside of risers should be sloped or have a 60 angle minimum between nosings and the horizontal surface open risers are not allowed under ada guidelines. Here is a drawing detailing our standard stair tread and riser dimensions.
Riser and tread dimensions should be continuously uniform for safety. According to the ibc stair tread depths must be a minimum of 11 inches on rectangular stairs. In my opinion a tread that is too thick might also have a tread nose that is too thick and might be a trip hazard to people ascending the stair. Full thickness of 11 16 across entire tread may not be available in some wood species.
The actual thickness of the stair tread. These dimensions may be useful when laying out a staircase or if you have general questions about the size and shape of a traditional tread or a retro tread. Note that there is no maximum stair tread thickness nevertheless very thick stair treads say using timbers greater than 1 1 2 thick typical 2x lumber thickness might be hazardous. The stair case is 36 wide.
The old stair treads are just garden variety pine 1 5 thick cut from 2x10. I will build the new stringers out of 2x12 pine. Nosings must project at least 3 4 inch and no more than 1 1 4 inches beyond the riser below. Stair tread thickness as long as the span between stringers isn t too great 3 4 is fine kinda cheap unless it s finished oak i like 4x12 timber treads.
Standard stair tread dimensions. I would like to build the new staircase using white oak treads would 3 4 or 7 8 thick treads in white oak with two stringers be sufficient.