Coordinating with a stairlift
If you are having a stairlift installed, or if you already have one, the first step is to ensure your stair runner doesn't overlap the area where the lift track is mounted. The track is usually fixed to the treads themselves, and having a thick, bunched-up runner underneath the track mounts is a recipe for instability.
The best solution is to use a slightly narrower runner that runs up the centre of the stairs, leaving the area where the stairlift track is mounted completely free and clear. This keeps the runner safe from the lift's operation and makes it much easier to keep both systems working correctly.
How much runner do I need?
For a 13-step flight: 10 in tread run + 7.5 in riser + 0.75 in nosing wrap = 18.25 in per step. Total = 237.25 in (5.97 m). Plus 24 in finishing allowance = 261.25 in (6.57 m). With an 8% waste margin, you need approximately 23.5 ft (7.1 m).
| Measurement | US (in/ft) | UK (cm/m) |
|---|---|---|
| Tread run | 10 in | 25 cm |
| Riser height | 7.5 in | 19 cm |
| Nosing wrap | 0.75 in | 1.9 cm |
| Total per step | 18.25 in | 45.9 cm |
| 13-step subtotal | 19.77 ft | 5.97 m |
| Finishing allowance | 21.77 ft | 6.57 m |
| With 8% waste | 23.5 ft | 7.1 m |
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 calculatorKey safety considerations
Safety is the priority. The runner must be so tightly secured that there is zero risk of it moving, as any loose carpet could potentially be caught by the stairlift's carriage. This is why professional, expert installation is absolutely non-negotiable.
- Ensure the runner leaves ample space for the stairlift track.
- Make sure the runner is extremely securely fastened.
- Avoid high-pile or loose carpets that could catch.
- Consult your stairlift installer about any carpet requirements.
- Regularly inspect both the runner and the stairlift's path.
Professional coordination
If possible, have your stairlift installer and your carpet fitter coordinate. They can work together to ensure the runner is installed around the track in a way that is both safe and aesthetically pleasing. It is much easier to get this right at the installation stage than to try to fix it later.
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
Can I have a stair runner and a stairlift?
Yes, provided they are professionally coordinated. A narrower runner installed in the centre of the stairs can work perfectly well with a stairlift.
Does the stairlift track need to be on bare stairs?
Not necessarily, but the runner must be cut or placed to avoid the mounting area completely. It is usually best to have the track mounted on the bare tread, with the runner to one side.
Is a runner a trip hazard if I have a stairlift?
Only if it is poorly installed. A tight, narrow runner installed correctly is perfectly safe.
Should I call my stairlift provider?
Definitely. They should be able to tell you if there are any specific requirements or restrictions regarding carpet on the stairs where the lift is mounted.
What if my runner is already installed?
If you have a runner and are getting a lift, you may need a professional fitter to trim or adjust the runner to accommodate the track. Do not attempt this yourself.
Can a stairlift cause a runner to come loose?
If the runner is installed improperly, yes, the movement of the lift can aggravate a loose runner. This is why the runner must be extremely secure.
What should I look for in a fitter?
Look for someone who has experience working around existing stairlift tracks. It requires a high level of precision.
Does the underlay affect the lift?
It shouldn't, as long as it is kept away from the track mountings. Always use a firm, thin underlay to keep the runner stable.
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 runner 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.