Stair Stringer Thickness

We shall take you through the example calculations for first a standard mount and then a flush mount set of stairs.

Stair stringer thickness.

You can now draw the notches for the stairs onto your 2x12 stair stringers. Is the top step really the top step do we need to account for any riser thickness. Since the tread depth b is a constant when using the automatic stair calculator the total run g will vary when you toggle between the two mount options. And a stringer width of 12 inches.

Stairs the dreaded stair stringer. You will need to remove the thickness of the riser board from the top stair and remove the thickness of the tread board from the bottom stair. Riser thickness of 1 inch. We shall calculate the dimensions of the steps and the staircase.

Once the stair results have been calculated you can toggle between the standard and flush options to compare the differences. The stringer mount type refers to how the stringer will be attached to the upper landing or deck frame. These are available in 2 4 3 6 and 4 2m lengths direct from our online shop. We strongly recommend using stair stringers of a minimum width of 32mm as anything less can result in squeaky treads in your staircase.

If the stair treads are set into grooves routed into the stringer in a 2x stringer the groove depth should be 1 2 the thickness of the stringer typically 3 4 and additional support by cleats or by gluing and end screwing through the stringer sides into the treads is good practice. As an fyi me showing using these plans is not an issue as all the ones that have been or are used in competition are shared with all the teachers afterwards so they can use them as guides teaching tools.