Key Takeaways For How Much Space Does A Stairlift Take?
Track and Chair Space: A stairlift rail is roughly 15 cm wide and sits against one wall. The folded chair adds around 30 to 35 cm, leaving the rest of your staircase clear for other users.
Minimum Staircase Width: Most manufacturers require at least 70 to 75 cm of staircase width. Narrow-staircase models can work in spaces as tight as 65 cm.
Folded vs Unfolded: When folded flat against the wall, a stairlift typically takes up 30 to 40 cm of width. When unfolded for use, it occupies around 55 to 65 cm.
One of the most common concerns people have before installing a stairlift is whether their staircase is wide enough. The good news is that modern stairlifts are designed to be compact, and most standard UK staircases have plenty of room. Thanks to the availability of brands and models ideal for stairs of various shapes and sizes, almost any home can accommodate one. Here is a detailed look at how much space a stairlift actually takes.
Typical Stairlift Dimensions
A stairlift has two main components that affect space: the rail (or track) and the chair unit itself. The rail is fixed to the stair treads rather than the wall, and it runs along one side of the staircase. A standard rail is approximately 12 to 15 cm wide. The chair sits on top of the rail and can be folded up when not in use.
When the seat, armrests and footrest are folded, the whole unit typically protrudes 30 to 40 cm from the wall. When unfolded and ready to ride, it occupies around 55 to 65 cm depending on the model. That means on a standard UK staircase of 85 to 90 cm width, other household members can still walk past a folded stairlift comfortably.
Space Requirements by Stairlift Type
Different stairlift types have slightly different space requirements. The table below gives typical measurements for each type.
| Stairlift Type | Rail Width | Folded Width | Unfolded Width | Min. Stair Width |
|---|---|---|---|---|
| Straight stairlift | 12 to 15 cm | 30 to 35 cm | 55 to 60 cm | 70 cm |
| Curved stairlift | 15 to 18 cm | 35 to 40 cm | 58 to 65 cm | 75 cm |
| Narrow-staircase model | 10 to 13 cm | 28 to 32 cm | 50 to 57 cm | 65 cm |
| Perch (stand-up) stairlift | 12 to 15 cm | 30 to 35 cm | 45 to 52 cm | 65 cm |
| Outdoor stairlift | 15 to 18 cm | 35 to 40 cm | 58 to 65 cm | 75 cm |
Perch stairlifts are worth noting because the user stands or semi-stands during the ride, which means the footrest does not extend as far. This makes them a good option for particularly narrow staircases or for people who find it difficult to bend their knees.
What About Landing Space?
You also need to consider the space at the top and bottom of the stairs. At the bottom, the rail may extend slightly beyond the last step. Some models offer a hinged or retractable rail end so it does not block a doorway or hallway. At the top, the chair parks on a small section of rail on the landing. You should allow around 60 to 75 cm of clear landing space for getting on and off the chair safely.
Will Other People Be Able to Use the Stairs?
This is probably the biggest worry. On a standard UK staircase (85 to 90 cm wide), a folded stairlift leaves roughly 50 to 60 cm of clear walkway. That is enough for most people to pass comfortably, though it can feel snug if you are carrying shopping bags or laundry. If your staircase is narrower than 75 cm, a surveyor will assess whether a narrow-staircase stairlift is suitable.
How to Check Your Staircase
Before requesting a quote, you can do a quick check at home. Measure the width of your staircase between the two walls (or wall and banister) at the narrowest point. If it is 75 cm or wider, a standard stairlift will almost certainly fit. If it is between 65 and 75 cm, you will likely need a slim or perch model. Below 65 cm is very rare in UK homes, but specialist solutions may still be available.
Every installation begins with a free home survey from the stairlift provider, who will take precise measurements and recommend the right model for your staircase. To compare providers and read verified customer reviews, visit our stairlifts section.