Thickness Of Stair Risers

Maximum 7 3 4 inch stair riser height.

Thickness of stair risers.

This type of staircase requires a stair tread thicker than the standard 1. Handrail graspability to be either type i or ii with a minimum 1 1 2 inch clearance from a wall. Minimum 10 inch stair tread depth with nosing or minimum 11 inches with no nosing. 7 3 4 inches maximum.

Most stair companies use 1 1 16 industry standard tread thickness. This means your stair risers should be less than or equal to 7 3 4 inches. Thickness in natural unfinished red oak. I never lost a cent on the jobs i didn t get.

Unfinished the surewood lnl 48 in. Unfinished oak stair treads have a 1 in. The surewood lnl 48 in. 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.

Item 17656 model 7d48 oak. Designed for interior use our tread can be stained to match other stair parts or surrounding decor. We can make these thicker stair treads in most species and colors. 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.

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. Code states that this should not be greater than 7 3 4 inches 194 mm. 7 5 in x 48 in unfinished red oak wood stair riser. In fact many professionals recommend risers with a thickness of.

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. If you need a size or species you don t see listed here please contact us for a quote. Staircase riser height translates to the distance you move your foot either up or down from one step to an adjacent step. This should be no more than 7 3 4 inches.

The following user says thank you to greg24k for this useful post. A stair riser is the back vertical part of a step. Handrail height to be placed a minimum 34 inches to 38 inches. Maximum 12 3 vertical height rise for a flight of stairs.

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. Thick stair treads are often used in open rise staircases where there is only one supporting stringer.