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Accessible living · Small jobs, done in a day

Threshold ramp, interior

An interior threshold ramped so a walker or a chair crosses it without a lift, and nobody catches a toe on it.

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One flat fee to find out what is wrong. You are told it on the phone before anyone is dispatched, and it comes off the job if you hire us. Read our Plain Terms

What the work is

The lip at a doorway, a shower entry or a level change between rooms is a small thing that stops a walker completely. A ramped threshold takes it out.

The two questions are slope and edges. Too steep and it does not help; unsecured edges and it becomes the thing you trip on. It has to be fixed down, and the transition has to work in both directions.

What is included

  • Measuring the rise and setting the slope to suit it
  • The threshold, cut to the opening and fixed down
  • Finishing both edges so nothing catches
  • Checking it with the actual walker or chair before we leave

What is not

  • Exterior ramps and anything structural, which is a different job
  • Altering a door or its frame
  • Flooring repair either side

Bring the equipment to the fitting

A threshold that works on paper and catches a particular walker's front wheels is a common outcome. We check with the thing that actually has to cross it before we call the job done.

What to ask anyone quoting this, us included

  • What slope, and does it suit my equipment?
  • Is it fixed down, and how?
  • Have you tested it with my walker?

What we can show you in writing

Every line traces to a document we read in full. The number after a sentence points to the research below.

  • The published ramp slope is 1:12 — an inch of rise wants a foot of run. A half-inch threshold wants six inches of ramp; a two-inch threshold wants two feet. That is longer than most people picture, and it is why a ramp sometimes will not fit where a door swings.1
  • In existing buildings the standard allows steeper runs for short rises — up to 1:10 for a rise of 6 inches, up to 1:8 for 3 inches — and then stops: steeper than 1:8 is prohibited outright. A wedge cut to clear a two-inch threshold in four inches of run is steeper than anything published.1
  • Below a quarter inch, a change in level needs nothing at all. Between a quarter and a half inch it wants a bevel no steeper than 1:2. Only above half an inch does it want a ramp. Measure your threshold first — plenty of interior thresholds are already under the line and need no work.1

Where this comes from

Every line above traces to a document we read in full. The number after a sentence points to the research below; hover it for the section. If you find a line wrong, tell us and we will fix it and say so.

  1. Accessible construction research, September 2026 Compiled from the US Access Board's ADA and ADAAG texts and the 1984 Uniform Federal Accessibility Standards, the Code of Federal Regulations, HUD's Fair Housing design guidance, the Utah Code, ASME and ASTM standard scopes, the Tile Council of North America on slip resistance, and the CDC and National Institute on Aging. 2 sections cited. Hover a number above for the section.

Read before you decide

The rest of small jobs, done in a day

The quote is the number. There is no second number.

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