How do you know whether you need a threshold ramp or a modular ramp?

Measure the vertical rise from the lower surface to the top of the step or sill. A threshold ramp is designed for a single door sill or low step, usually up to about 4 inches. Anything taller, such as a porch or two or more steps, needs the length that only a folding or modular ramp can give.

How long does a wheelchair ramp need to be for a home entrance?

At the 1:12 slope used in the ADA standards, a wheelchair ramp needs one foot of length for every inch of rise. A 6 inch step needs about 6 feet of ramp, and a 24 inch porch needs about 24 feet, plus level landings. A steeper slope may work with a helper pushing, but it can tip a self-propelled wheelchair backward.

When does a home wheelchair ramp need handrails?

The ADA standards for public buildings require handrails on both sides of any ramp that rises more than 6 inches, along with level landings at the top and bottom of each run. Private homes are not bound by the ADA, but those figures are widely used as the safe baseline for a residential ramp.

Can you rent a modular wheelchair ramp instead of buying one?

In many areas, yes. Medical-equipment dealers and some ramp installers rent aluminum modular ramps for short-term needs, such as recovery after a hip or knee replacement, and remove them afterward. Availability and terms vary by region, so ask local dealers, a hospital discharge planner, or the Area Agency on Aging.

Who should plan a wheelchair ramp for a senior's home?

An occupational therapist or a Certified Aging-in-Place Specialist (CAPS) is the right person to plan a ramp that rises more than a few inches. They measure the site, check the slope and turning space for the specific wheelchair or walker, and spot problems such as door swing or landing size that a catalog listing will not show.

Threshold Ramp vs. Modular Ramp: Which Does a Home Entrance Need?

Threshold ramp or modular ramp? Measure the rise, size it at 1:12, and see when handrails, landings, and a professional assessment come into play.

Product details and Amazon ratings checked October 12, 2026

The short answer

Measure the rise first. A threshold ramp suits a single sill or step of a few inches and lies in place with no tools. A modular ramp is the answer for a porch or several steps, where the 1:12 slope demands many feet of ramp, handrails, and level landings.

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Best Overall

VEVOR

VEVOR 3" Rise Rubber Threshold Ramp

4.6(949)on Amazon

A one-piece recycled-rubber ramp for a 3-inch rise, 35.6" wide with beveled edges all around and a grooved non-slip surface — fits wheelchairs up to 26.8".

3" rise, 35.6" wide
2200 lb capacity
Beveled edges all sides

Check Price on Amazon Read our full review

VEVOR 3" Rise Rubber Threshold Ramp: Best for one door sill or a single low step, up to about 4 inches of rise.

Head-to-head comparison

Factor	Threshold ramp	Modular ramp
Rise it handles	One threshold or low step, typically up to about 4 inches; the VEVOR model is built for a 3 inch rise	Several steps or a porch, built in sections to whatever length the rise needs
Slope at 1:12	At 1:12 a 3 inch rise needs about 3 feet of ramp; short rubber ramps are often steeper, which suits a helper pushing or a powered chair better than someone wheeling themselves	One foot of ramp per inch of rise: a 24 inch porch needs about 24 feet of ramp, usually with a turn or switchback
Handrails and landings	None needed at threshold height; beveled edges keep it from becoming a trip hazard	ADA standards call for handrails on both sides once a ramp rises more than 6 inches, level landings at the top and bottom of each run, and no more than 30 inches of rise per run
Installation	Lay it against the sill; no tools or fasteners, and cuttable models trim to fit	Aluminum sections bolted together on site, usually by a dealer or contractor; some towns require a permit, so check locally
Permanence	Portable; moves between doors or to a new home	Semi-permanent but removable, and medical-equipment dealers in many areas rent modular systems for short-term needs such as surgery recovery
Who should decide	A family can usually choose after measuring the rise carefully	An occupational therapist or a Certified Aging-in-Place Specialist should measure the site and plan the layout

Rise it handles

Threshold ramp: One threshold or low step, typically up to about 4 inches; the VEVOR model is built for a 3 inch rise
Modular ramp: Several steps or a porch, built in sections to whatever length the rise needs

Slope at 1:12

Threshold ramp: At 1:12 a 3 inch rise needs about 3 feet of ramp; short rubber ramps are often steeper, which suits a helper pushing or a powered chair better than someone wheeling themselves
Modular ramp: One foot of ramp per inch of rise: a 24 inch porch needs about 24 feet of ramp, usually with a turn or switchback

Handrails and landings

Threshold ramp: None needed at threshold height; beveled edges keep it from becoming a trip hazard
Modular ramp: ADA standards call for handrails on both sides once a ramp rises more than 6 inches, level landings at the top and bottom of each run, and no more than 30 inches of rise per run

Installation

Threshold ramp: Lay it against the sill; no tools or fasteners, and cuttable models trim to fit
Modular ramp: Aluminum sections bolted together on site, usually by a dealer or contractor; some towns require a permit, so check locally

Permanence

Threshold ramp: Portable; moves between doors or to a new home
Modular ramp: Semi-permanent but removable, and medical-equipment dealers in many areas rent modular systems for short-term needs such as surgery recovery

Who should decide

Threshold ramp: A family can usually choose after measuring the rise carefully
Modular ramp: An occupational therapist or a Certified Aging-in-Place Specialist should measure the site and plan the layout

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