When a standard-width runner won't work
Standard stair runners are cut to a single, consistent width for the full flight length, which works for the majority of straight staircases. A custom multi-size stair runner becomes necessary when the staircase itself is not uniform: a flight that narrows through a turn, a set of winder or pie-shaped steps where each tread has a different width, a curved staircase where the outer and inner edges are different lengths on every step, or a run that needs to taper to match a narrower upstairs hallway at the top.
- Winder or pie-shaped steps: each tread has a unique width and angle, so the runner must be cut and often pieced individually per step.
- Curved staircases: the runner width may stay constant but the outer edge length differs from the inner edge on every tread.
- Tapering flights: some staircases genuinely narrow from bottom to top, requiring a runner that steps down in width at a defined point.
- Non-standard step counts or unusually deep/shallow treads: off-the-shelf pre-cut lengths rarely land exactly right.
Measuring for a custom order
Every tread on an irregular flight needs its own individual measurement rather than a single width taken at the bottom step and assumed constant throughout. Measure width, depth and, on winders, the angle of taper at both the narrow and wide side of each affected tread, and record landing dimensions separately since a landing almost always needs its own piece cut to a different shape than the flight itself.
| Section | What to measure | Why it matters |
|---|---|---|
| Straight run | Width at 3-4 points along the flight | Confirms consistency before assuming uniform width |
| Winder/pie steps | Width at both the narrow and wide edge of each tread | Each step needs an individually shaped piece |
| Curved section | Inner edge length, outer edge length, per tread | Runner must be eased or pieced to follow the curve |
| Landing | Full length and width, including any turn | Usually cut as a separate, differently shaped piece |
Getting an accurate quote
Most retailers offering custom-cut runners will ask for either a detailed measurement sheet (with a diagram) or an in-home measure by their own fitter — an in-home measure is strongly recommended for any flight with winders, curves or a taper, since a self-measured error on an irregular flight is far more costly to correct after cutting than on a simple straight run. Confirm whether the quoted price already includes piecing for winders, since piecing individual treads takes considerably more labour than a continuous straight cut.
| Item | US price range | UK price range |
|---|---|---|
| Custom straight-run runner, 13 steps | $300-700 | £250-580 |
| Custom winder/curved runner, 13 steps | $650-1,600 | £540-1,330 |
| Custom landing piece | $150-400 | £125-330 |
| In-home professional measure | $0-150 (often credited to order) | £0-125 |
Because winder and curved sections need considerably more fabric and labour per step than a straight run, use the stair runner length calculator to separate your straight-run yardage from your winder-section estimate, then request pricing for each section individually so you can compare quotes on a like-for-like basis.
Order enough dye lot for the whole custom job
Custom orders with multiple pieces — main flight, winder section and landing — should be cut from the same dye lot in a single order. Ordering the landing piece separately later, even from the same supplier, risks a visible colour mismatch.
Know your numbers in 30 seconds
Enter your step count, tread depth and riser height — the stair runner calculator gives you the exact length to order, in metres and feet, with waste included.
Open the stair runner calculatorTimeline and lead times
Custom-cut runners typically take 3-8 weeks from order to delivery, longer than the 1-2 weeks common for a standard pre-cut runner, since the pattern piecing and cutting is done to order rather than pulled from stock. Factor this lead time into any renovation schedule, and confirm the supplier's policy on remeasuring if the staircase construction changes (for example, if treads are being replaced) between the initial measure and installation.
Whatever you decide, get the numbers first: the stair runner calculator doubles as a stair runner length calculator, adding nosing wrap, landings, winders, pattern repeat and waste so you order the right length the first time.
Frequently asked questions
What is a custom size stair runner?
A stair runner made to the exact, often non-standard dimensions of a specific staircase — needed for winder steps, curved flights, tapering widths, or unusual step counts that a standard pre-cut runner cannot fit.
How do you measure a staircase for a custom runner?
Measure every individual tread's width and depth separately rather than assuming uniform width, including both the narrow and wide edge of any winder or pie-shaped steps, plus separate landing dimensions.
How much does a custom stair runner cost?
A custom straight-run runner for 13 steps typically costs $300-700 (£250-580); a custom winder or curved runner for the same flight length runs $650-1,600 (£540-1,330) due to the extra piecing labour.
How long does a custom stair runner take to arrive?
Typically 3-8 weeks from order to delivery, compared with 1-2 weeks for a standard pre-cut runner, since custom pieces are cut to order.
Should I get a professional in-home measure for a custom runner?
Yes, strongly recommended for any flight with winders, curves or a taper, since self-measurement errors on irregular flights are costly to correct after the runner is cut.
Can a custom runner match my hallway carpet exactly?
Yes, if ordered from the same dye lot in a single order alongside the hallway or landing piece; ordering pieces separately later risks a visible colour mismatch.
Know your numbers in 30 seconds
Enter your step count, tread depth and riser height — the stair runner calculator gives you the exact length to order, in metres and feet, with waste included.
Plan my custom-size runnerEvery guide is written from hands-on measuring and fitting experience, checked against the calculator’s own maths, and re-reviewed whenever prices or methods change. Read our editorial standards.