Ramps & Entry
Best Threshold Ramps: Sizing, Materials, and What to Buy
A threshold ramp is the cheapest accessibility fix in most homes — provided you size it for the rise instead of guessing.
Written by Marcus Thorne
Reviewed by Elena Marsh
Updated August 27, 2026
Fact-checked August 27, 2026
3 min read
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Measure the rise, then the space for the run
The rise is the vertical distance from the lower floor to the top of the threshold. The run is how far the ramp extends outward. A gentler slope always means a longer run, and the run is what tends to run out of room — especially inside a hallway or on a small landing.
- Measure the rise at the highest point of the threshold, not the average.
- Measure separately on each side if both sides are stepped, such as a sliding door with an interior lip and an exterior drop.
- Confirm the ramp will not block the door swing. An inward-swinging door and a threshold ramp on the inside frequently conflict.
- Check that the ramp's width covers the full door opening, not just the wheelchair track.
- Verify the landing depth in front of the door still leaves room to maneuver after the ramp is placed.
Rubber vs aluminum
For an exterior door, weight matters: a light aluminum ramp on a smooth concrete stoop can shift when a heavy power chair crosses it. Rubber or an anchored aluminum ramp is more predictable.
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Fit details people miss
- Sliding-door tracks: some threshold ramps are made specifically to bridge a track and sit flush on both sides. Generic ramps often rock on the track.
- Storm doors: the outward-swinging storm door and an exterior ramp usually collide. Measure the swing arc.
- Weight capacity: power wheelchairs plus rider can exceed 400 lb, so check that the ramp's rating covers the loaded chair, not just body weight.
- Surface traction: look for a grit or diamond-plate surface if the ramp will be outdoors.
- Water: an exterior ramp against a door should not dam water toward the threshold. A slotted or drained design matters.
- Removability: renters usually need a non-permanent, non-damaging installation, which favors solid rubber.
Manufacturers whose threshold and portable ramp lines are widely available. Confirm rise, width, and capacity for your doorway.
Links open the manufacturer or retailer site. We do not compare live prices, so check the seller for current pricing and availability.
Frequently asked questions
What size threshold ramp do I need?
Match the ramp's rated rise to the measured height of your threshold, and confirm the resulting run fits the floor space you have. Ramps are sold by rise, so measuring the rise accurately is the whole job.
Are threshold ramps safe for power wheelchairs?
Yes, when the capacity rating covers the combined weight of the chair and rider and the ramp cannot shift. Check the rating; power chairs are much heavier than manual ones.
Do threshold ramps need to be attached to the floor?
Solid rubber ramps are usually heavy enough to stay put. Lighter aluminum ramps, and any ramp on a smooth exterior surface, are safer anchored or set against a stop.
Can I use a threshold ramp on a rental?
Usually yes. A free-standing rubber ramp leaves no marks and does not modify the unit. Under the Fair Housing Act, tenants with disabilities may also request reasonable modifications; see our renting and accessibility guide.
Keep reading
Sources
- ADA Standards for Accessible Design (ramp slope reference) — U.S. Department of Justice
- Durable medical equipment coverage — Medicare.gov
Marcus Thorne
Senior Editor, Mobility Equipment
Marcus covers stair lifts, home elevators, and platform lifts for Home Access Advisor. He spent eleven years estimating residential remodels before moving into consumer publishing, and he reads dealer quotes for a living — which is why most of his guides start with the line items other sites leave out.
Covers: Stair lifts · Residential elevators · Installation pricing · Dealer quotes
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