Extend the tape measure across the width of the stair tread, from one stringer (or wall) to the other. Record this measurement. If carpeting or installing a runner, this measurement is critical for determining the width of material needed.
Step 3 · Measure Stair Width
Extend the tape measure across the width of the stair tread, from one stringer (or wall) to the other. Record this measurement. If carpeting or installing a runner, this measurement is critical for determining the width of material needed.