Treads may be cut to suit other widths.
Stair tread riser calculator.
The program generates the results of the calculations of the 3d model straight staircase drawings of all structural elements with straight stair stringers.
Use if total run is restricted by obstacles such as doors or landings.
Is there a head height restriction.
How to calculate stairs to use our stair calculator you need to enter the following measurements as a minimum.
The nosing is the projecting edge of a tread.
Interior stairs tread and riser ratio the typical interior stair dimension is calculated as the formula riser r tread t 17 inches minimum or 18 inches maximum not including the nosing.
The rise is the vertical measurement taken from one step level to the next standard rise is 175mm.
Refer to the figure adjacent to the calculator as a reference.
The stair calculator is an online tool for calculating various parameters involved in the construction of stairs.
A fraction to decimal conversion table for common fractions used in measurements is also provided at the bottom of the page.
Either b or c is required.
Enter total stair rise inches.
The stair stringer calculator allows you to perform online calculation of straight staircases on strings.
We suggest 10 5 for 2x12 or 2 2x6 treads.
The stair calculator is used for calculating stair rise and run stair angle stringer length step height tread depth and the number of steps required for a given run of stairs.
Enter total stair run.
This calculator will tell you.
Total area for all treads and rises 7 66m to calculate and display upper floor opening and stair head room enter upper floor thickness check the show head room check box and drag the head slider to calculate and animate diagram head room and floor opening.
How many rises you ll need dimensions for each rise.
For convenience and flexibility this stair stringer calculator comes in two forms the automatic and manual.
Total required number of tread total stair tread or run width of one tread 90 10 9 tread.