The key questions to ask
Ask for the fibre content, the backing type, and whether the runner is suitable for heavy traffic. Verify the pattern repeat if applicable and ask if they can guarantee the entire order comes from a single dye lot. Finally, ask about their policy on faulty goods and whether the runner is pre-bound or requires professional binding.
How much runner do I need?
For a 13-step flight: 10 in tread + 7.5 in riser + 0.75 in wrap = 18.25 in per step. Total 237.25 in. Adding 24 in for finishing = 261.25 in (21.77 ft). Including a 10% safety margin, order 24 ft. Metric: 25 cm tread + 19 cm riser + 1.9 cm wrap = 45.9 cm per step. Total 596.7 cm, plus 60 cm = 656.7 cm. With 10% safety, aim for 7.3 m.
| Question Topic | Why it matters |
|---|---|
| Dye Lot | Avoids colour variation |
| Backing Type | Ensures durability and stability |
| Pattern Repeat | Vital for accurate ordering |
| Fibre Content | Determines lifespan and feel |
| Binding | Determines the finished look |
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 calculatorRead the small print
Check the delivery and returns policy before you pay. Understand your liabilities if the runner arrives damaged or is not what you ordered.
- Is this a stock item or a made-to-measure order?
- What is the warranty period?
- Do you recommend a specific underlay?
- How do I handle maintenance and cleaning?
- Can you provide a larger sample or a full-repeat photo?
Why vetting matters
A runner isn't just decoration; it's a safety feature and a high-traffic flooring solution. Buying from a transparent, helpful supplier who is willing to answer these questions is the best way to ensure your renovation is a success.
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
What if they can't answer my questions?
This is a red flag. Move on to a more knowledgeable and transparent supplier.
Is asking about the backing important?
Extremely. The backing keeps the runner in place and protects the steps. A thin backing is a sign of poor quality.
Should I ask about fitting?
Yes. They can often provide a list of recommended local fitters who have experience with their products.
Are warranties always offered?
Not always. If they offer one, read it carefully to see what it actually covers.
What about the pattern repeat?
If the pattern doesn't match perfectly at every step, it will look disjointed and cheap. Always confirm the repeat size.
Can I get a trade discount?
Always ask if they offer discounts for large or professional projects.
Are these questions too much?
No. A good supplier expects these questions and will be happy to provide the answers.
Why focus on dye lots?
Because it's the number one cause of disappointment in carpet orders. Getting it right at the start prevents major issues.
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 your project with the stair runner calculatorEvery 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.