
What Karastan is generally known for
Karastan has a long history in the US carpet market and is generally recognised for woven wool and wool-blend carpet, historically associated with a reputation for quality construction and classic, often traditional pattern designs. The brand is typically sold through flooring retailers and department-store-affiliated carpet departments rather than as a direct-to-consumer online shop, which means the exact range of patterns, colours and constructions available to you will depend heavily on which retailer or flooring store you visit locally.
Because collections, colourways and even fibre constructions are updated over time and vary by retailer stock, avoid relying on general brand reputation alone to judge a specific product - ask to see current swatches in person and confirm construction details for the exact pattern you are considering, since carpet photographed online rarely renders colour and texture accurately.
How a Karastan stair runner is typically ordered
As with most woven-carpet brands sold as broadloom, a Karastan stair runner usually starts from a wider roll of carpet that a retailer or fitter cuts down to a runner width and binds along both edges, then cuts to your total measured stair length. This is different from buying a boxed, pre-bound runner off a shelf: you are ordering a custom-cut product, and the retailer needs accurate measurements from you (or takes their own on-site measurement, sometimes for a fee) before the order can be placed.
A few things to expect in that process:
- Runner width is chosen separately from the base broadloom width - you typically pick a width that leaves an even margin of exposed tread either side, commonly leaving several inches on each side of a standard staircase.
- Binding colour is usually chosen to complement or contrast with the carpet, and it is worth seeing a bound sample rather than judging from the plain carpet swatch alone.
- Lead time from order to delivery depends on whether the pattern is in current stock or needs a special order from the mill, and this can vary considerably.
- Some retailers charge a measuring fee that is credited back if you proceed with an order, which is worth asking about upfront.
How much runner do I need?
Work this out yourself before a retailer measures, so you can sanity-check their figure. For a straight 13-step US flight with a 10 in tread going and 7.5 in riser, each step takes roughly 19.5 in of runner allowing for the nosing wrap, giving about 21.1 ft for 13 steps. Add a combined 18-24 in top-and-bottom finishing allowance to reach around 22.5-23 ft, then a 5-10% waste and pattern allowance on top, landing near 24-25 ft as the length to specify to the retailer.
In UK metric terms, a 25 cm going and 19 cm rise per step gives about 46 cm per step, so 13 steps totals roughly 6 m. Add 45-60 cm combined for top and bottom finishing to reach about 6.5-6.6 m, then add a 5-10% waste allowance, landing near 6.9-7.2 m as your final order length. These figures are for a straight flight only - any winder or turn adds length that needs to be measured on-site rather than estimated from a straight-run formula.
Measure before the retailer visits
Take your own tread-by-tread measurements before a retailer's measuring appointment, even if they will remeasure on-site - having your own figure means you can immediately question a quote that looks significantly off, before an order is placed.
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 calculatorQuestions worth asking a Karastan retailer
- Is the pattern I've chosen currently in stock, or does it require a special mill order, and what does that do to lead time?
- What fibre and construction is this specific carpet, and how is it expected to wear on stairs compared with a flat floor?
- What binding options and colours are available, and can I see a bound sample rather than just the loose carpet swatch?
- Does the quoted price include underlay, fitting, stair rods or hold-downs, or are these priced separately?
- If I measure my own stairs and the retailer's on-site measurement differs, how is that discrepancy resolved before cutting?
- What happens if the delivered runner is too short by a step or two - is a rush re-cut possible and what does it cost?
- Is there a minimum order length, and does a short flight incur a minimum-charge premium?
- What cleaning method does the manufacturer recommend for this specific fibre and construction?
Ordering process at a glance
| Stage | What happens | What you should bring or confirm |
|---|---|---|
| Sample selection | Choose pattern and colour from in-store swatches | View samples under your own stairway lighting if possible |
| Measuring | Retailer measures on-site, or you supply measurements | Your own tread-by-tread measurements as a cross-check |
| Quoting | Retailer quotes based on measured length plus waste allowance | Ask what waste percentage is included in the quote |
| Cutting and binding | Broadloom is cut to width and length, then bound | Confirm binding colour and style before cutting begins |
| Fitting | Runner is installed, often with underlay and rods or adhesive | Confirm fitting is included or priced separately |
Comparing Karastan against other retail carpet brands
If Karastan's reputation for woven wool carpet is what drew you in, it is still worth viewing samples from at least one or two other retail carpet brands - Mohawk and Anderson Tuftex both sell through similar flooring-retailer channels and offer comparable woven and tufted constructions, sometimes at different price points for a similar look. Comparing physical samples side by side, under the lighting conditions of your own stairway, will tell you far more about which fibre feel and colour rendering you actually prefer than reading general brand descriptions.

Whichever brand you eventually order from, use a stair runner calculator to firm up your own length figure before the measuring or quoting stage. A stair runner length calculator removes the risk of arithmetic slips on your side of the transaction, so any difference between your figure and the retailer's on-site measurement is a genuine discrepancy worth querying rather than a simple miscalculation.
Caring for a wool broadloom runner
Wool carpet runners generally need regular vacuuming with a setting appropriate to the pile height, prompt blotting of spills rather than rubbing, and periodic professional cleaning using a method suited to wool rather than a generic carpet-shampoo approach, since some common cleaning chemicals can affect wool fibre or dye over time. Ask the retailer or fitter what cleaning method the manufacturer recommends for your specific construction, and keep any care documentation supplied at the point of sale in case a future warranty or service question comes up.
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.
Still deciding on material, width or pattern? Our hub on stair runners compares weaves, widths, backings and fitting styles side by side, then hands the numbers straight to the calculator.
Frequently asked questions
Is a Karastan stair runner sold pre-cut or made to order?
It is typically made to order from broadloom carpet, cut to a runner width and bound, then cut to your measured stair length. This is different from a boxed, pre-bound runner and means accurate measurements matter before you order.
Where can I see Karastan carpet in person?
Karastan is generally sold through flooring retailers and department-store-affiliated carpet departments rather than a direct brand-owned shop, so availability of specific patterns depends on your local retailer's current stock and special-order options.
What fibre does Karastan typically use?
The brand is generally associated with wool and wool-blend woven carpet, though exact fibre content varies by specific collection and product. Confirm the fibre and construction of the exact pattern you are considering with the retailer before ordering.
How much should I order beyond my measured stair length?
A 5-10% allowance on top of your measured and finishing-adjusted total is a sensible general margin for waste and pattern alignment, regardless of brand. Confirm with the retailer whether their quote already includes a waste allowance.
Does the retailer measure my stairs or do I need to?
Many retailers offer an on-site measuring service, sometimes for a fee that is credited if you order, but it is still worth taking your own tread-by-tread measurements beforehand as a cross-check against their figure.
What binding options are available for a Karastan runner?
Binding colour and style options vary by retailer and product, so ask to see a fully bound sample rather than judging from the loose carpet swatch, and confirm whether a contrasting or matching binding is available for your chosen carpet.
How long does a custom order take?
Lead time depends on whether the pattern is in current retailer stock or requires a special mill order, and this varies by product and by retailer workload. Ask for a current estimate specific to your chosen pattern rather than relying on a general timeframe.
What should I ask about care and cleaning?
Ask the retailer or fitter what cleaning method the manufacturer recommends for the specific fibre and construction you have bought, since wool responds differently to common cleaning products than synthetic fibres, and keep any supplied care documentation for future reference.
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.
Calculate your stair runner length before visiting a retailerEvery 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.