Thickness Of Stair Risers

7 5 in x 48 in unfinished red oak wood stair riser.
Thickness of stair risers. Handrail height to be placed a minimum 34 inches to 38 inches. Code states that this should not be greater than 7 3 4 inches 194 mm. This should be no more than 7 3 4 inches. Step riser specifications riser height 7 75 or in some codes 7 0 or in canada 8 25 maximum and 4 inches 102 mm minimum.
We can make these thicker stair treads in most species and colors. Handrail graspability to be either type i or ii with a minimum 1 1 2 inch clearance from a wall. The following user says thank you to greg24k for this useful post. Maximum 7 3 4 inch stair riser height.
Riser and tread dimensions should be continuously uniform for safety. Most stair companies use 1 1 16 industry standard tread thickness. I never lost a cent on the jobs i didn t get. Staircase riser height translates to the distance you move your foot either up or down from one step to an adjacent step.
In fact many professionals recommend risers with a thickness of. This is not the case for open riser staircases. Item 17656 model 7d48 oak. This type of staircase requires a stair tread thicker than the standard 1.
Thickness in natural unfinished red oak. A stair riser is the back vertical part of a step. This means your stair risers should be less than or equal to 7 3 4 inches. Unfinished the surewood lnl 48 in.
The surewood lnl 48 in. Thick stair treads are often used in open rise staircases where there is only one supporting stringer. 7 3 4 inches maximum. Designed for interior use our tread can be stained to match other stair parts or surrounding decor.
Unfinished oak stair treads have a 1 in. If you need a size or species you don t see listed here please contact us for a quote. It s also important to note that if you do build a closed riser staircase your stair treads will need to have a note as well. In a given run of stairs the greatest step height and the smallest step height should not vary more than 3 8 inch 9 5 mm.
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. Open risers with openings more then 30 inches 762 mm vertical to the floor should not permit the passage of a 4 inch diameter 102 mm sphere.