How Wide Do Stairs Need to Be for a Stairlift?

One of the most common questions people ask before booking a survey is whether their stairs are wide enough for a stairlift.

The good news is that most staircases are suitable. However, width does play an important role, especially when considering comfort and safe access.

Minimum stair width for a stairlift

As a general guide, around 28 inches is usually considered the minimum width for fitting a stairlift.

That said, 28 inches really is the lower end. It may technically fit, but suitability also depends on the user.

The ideal stair width

The sweet spot for stair width is around 30 inches.

At 30 inches, most standard stairlifts will comfortably fit and allow enough space for safe use.

32 inches is even better and would comfortably suit most heights and scenarios. Wider stairs generally provide easier access and more room to manoeuvre.

User height matters too

It’s not just about the staircase width, the height of the user also makes a difference.

For example, a user who is 6ft 2” tall may struggle on a very narrow 28 inch staircase. Leg length and seating position can affect how comfortably the stairlift can be used.

A narrower staircase might technically allow installation, but it may not be the most practical or comfortable solution depending on the individual.

What if the stairs are too wide?

Interestingly, stairs that are very wide can also present a small challenge.

At the top of the staircase, many stairlifts require the seat to be swivelled manually so the user can get off safely. If the staircase is particularly wide, the user may not be within reach of the opposite banister to help pivot themselves while turning the seat.

In these situations, an automatic swivel seat can often solve the issue. This allows the seat to rotate using a control rather than relying on manual effort.

Other factors to consider

Stair width is important, but it’s not the only factor.

During a home survey we also look at:

• The angle of the staircase
• Obstructions such as radiators or doors
• Landing space at the top and bottom
• User height and mobility needs

If you’re unsure whether your staircase is suitable, you can always request a home survey or quote and we can assess it properly.

Final thoughts

As a rough guide, 28 inches is the minimum for most stairlifts, 30 inches is ideal, and 32 inches provides even more flexibility.

However, suitability also depends on the person using the lift, not just the staircase itself. A proper survey is always the best way to confirm what will work safely and comfortably.

Stair width and stairlifts – FAQs

Can a stairlift fit on 28 inch wide stairs?

In many cases yes, but it depends on the user’s height and the specific stairlift model.

What is the ideal width for a stairlift?

Around 30 inches is generally considered a good working width, with 32 inches offering even more flexibility.

Does height of the user matter?

Yes. Taller users may find very narrow staircases less comfortable even if installation is technically possible.

What if my stairs are very wide?

Very wide stairs can sometimes make manual seat swivel more difficult. An automatic swivel seat can usually resolve this.

Will a home survey confirm suitability?

Yes. A survey allows the staircase and user requirements to be assessed properly before installation.