Stairlift types
Heavy-Duty Stairlifts: Reinforced Rails & Higher Weight Limits
Heavy-duty (bariatric) stairlifts are engineered for users above a standard lift's weight limit. Standard domestic models are often rated around 115–135 kg (about 18–21 stone); heavy-duty versions typically go up to 160–200 kg (about 25–32 stone), depending on the model.
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Weight capacities at a glance
| Category | Kilograms | Stone (approx.) |
|---|---|---|
| Standard domestic | 115 – 135 kg | 18 – 21 st |
| Heavy-duty | 160 kg | 25 st |
| Bariatric (highest) | Up to about 200 kg | Up to about 32 st |
Never exceed the stated maximum user weight. Allow a margin if weight fluctuates, and tell the surveyor about anything regularly carried while riding.
What is different about a heavy-duty stairlift
- Wider, deeper seat with firmer padding and broader armrests.
- Reinforced chassis and seat mounting to handle the extra load.
- Heavier-duty motor and gearbox to keep a steady travel speed.
- Stronger rail and more fixings spaced closer together on the treads.
Because the seat is larger, check the stair width and landing space carefully. Heavy-duty curved options are more limited than straight ones.
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