Free Stair Runner Calculator
Calculate runner length for straight stairs, landings and winders before you order or quote.
- Free to use
- No sign-up required
- Instant results
- Built for flooring projects
Results
- Runner length required
- 6.15 m
- Runner width
- 0.01 m
- Net runner area
- 0.04 m²
- Waste allowance
- 0.00 m²
- Total runner area
- 0.04 m²
13 steps × (0.250 m + 0.180 m), plus 10% waste = 6.15 m runner length.
How this calculator works
Step 1
Count treads and measure width
Record the number of treads, riser height and runner width required.
Step 2
Include landings
Add landing lengths where the runner continues through hallways or turns.
Step 3
Apply waste
Allow extra for pattern match, binding and winder cuts.
When to add more waste
- Pattern match or binding — add 10–15%
- Winders and curved landings — 12–18%
- Bullnose steps and extra-wide runners — 10–15%
Why use this free calculator?
- Reduce remeasure visits by capturing tread count and runner width correctly first time.
- Quote runner-only jobs separately from full stair carpet.
- Add waste for pattern, binding and winder turns.
Common mistakes to avoid
- Counting treads but forgetting riser height in total length
- Measuring runner width too narrow for the stairwell
- Omitting landing lengths where the runner continues
Why flooring retailers save calculations in FloorPilot
Free calculators are perfect for quick estimates on site or in the showroom. FloorPilot keeps room measurements, material quantities and quotes linked to each customer — so you never retype numbers into spreadsheets or quote templates.
Frequently Asked Questions
How do I measure stairs for a runner?
Count every tread and riser, measure stair width, and note winders and landings separately.
How much extra should I allow for a stair runner?
Typically 10–15% for cuts, binding and pattern match on stair jobs.
Is this stair runner calculator free?
Yes — no registration required.
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