Measure the rise and run.
Carpet measuring calculator stairs.
The stair calculator is an online tool for calculating various parameters involved in the construction of stairs.
How to calculate stairs.
Divide by 12 and round up to get the number of feet.
Next measure upward across the tread and riser of 1 stair.
How to measure stairs for carpet.
After measuring the riser get the length and width of any landings then round all of your measurements up to the nearest foot.
Length of the step.
If doing by hand multiply your stair area plus the padding by the number of stairs to determine how many square feet of carpet you ll need for all stairs.
Include an inch or two extra to wrap around the nose.
To calculate how much carpet you ll need for your stairs start by measuring the width of 1 tread with a tape measure and add 2 inches to make sure you have enough carpet.
Refer to the figure adjacent to the calculator as a reference.
Count all the stairs and enter these numbers into the stair calculator.
Height of the step.
To use our stair calculator you need to enter the following measurements as a minimum.
Width x run rise nose x number of stairs area.
Multiply that by the number of stairs.
For a straight staircase.
For a typical set of 12 box stairs measuring 3 wide using a carpet that is 12 wide you would require 12 x 4 6 in a 12 width of carpet you get 4 box stairs 12 divided by 3 so every 12 x 18 gives you 4 stairs.
Total run the total horizontal length of the stair stringer.