Enter tread, riser, and step count to find carpet requirements.
About this calculator
Overview
This calculator determines how much carpet runner or full-width carpet you need for a staircase. It accounts for the tread, riser, and nose (overhang) of each step.
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Pro Tips
Add 10% extra length for potential trimming and errors.
If you are using a runner, measure the width needed to cover the desired path.
Include landings in your calculation if they are being carpeted too.
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Fun Facts
"Carpet is typically sold in 12-foot or 15-foot widths."
"A standard stair tread is about 10 inches deep."
"Waterfall installation is a common method where carpet flows over the nose without being tucked under."
