Outdoor Ramps and Entryway Safety
Wheelchair ramps typically cost $100-$250 per linear foot installed, with a full ramp project averaging around $2,292. A safe ramp slope is no steeper than 1:12 — one inch of rise for every foot of ramp length — which is why longer ramps are needed for higher entry steps.
The entry to a home is an easy hazard to overlook because it’s outside — exposed to weather, often less well-lit than the interior, and it’s the one place nearly everyone has to navigate a step, regardless of how accessible the rest of the house is.
Ramp slope: the rule that determines everything else
The standard, widely used slope guideline for a wheelchair ramp is 1:12 — meaning one inch of vertical rise requires at least twelve inches (one foot) of ramp length. A steeper ramp becomes difficult or unsafe to use, especially in wet or icy conditions.
Why this determines the ramp's footprint
A porch with an 18-inch step requires at least 18 feet of ramp length at the standard slope — often more than a straight shot from the driveway allows. This is why many ramps use an L-shape or switchback design: it fits the required length into a smaller footprint by turning a corner (or two) instead of running straight.
Material options
$1,122–$3,594
Priced per linear foot at $100-$250 depending on material. Handrails, required for most ramps, add $20-$50 per linear foot.
- Rubber threshold ramps work for small height differences (a single low step) and cost $50-$150 per linear foot — the least expensive option, but not suited to larger rises.
- Modular aluminum ramps are the most common choice for a real entry ramp: lightweight, weather-resistant, and can be reconfigured or removed later, at $150-$250 per linear foot system cost plus $60-$100 per linear foot for installation.
- Concrete ramps are the most permanent and often the most visually integrated option, running $250-$350 per linear foot — a bigger investment, but effectively permanent and low-maintenance.
Other entryway safety checks
- Handrails on both sides of the ramp, not just one — this matters as much outdoors as it does on interior stairs.
- Non-slip ramp surface, since an outdoor ramp gets wet, icy, or covered in leaves in ways an indoor floor never does.
- Lighting at the entry, so the ramp and door are visible after dark — motion-sensor exterior lights work well here for the same reasons they work well indoors.
- A covered or sheltered landing at the door, if possible, so the exact spot where someone is unlocking a door and managing a bag isn’t also the wettest or iciest part of the path.
Check whether a state or local program can help offset the cost before paying out of pocket — the financial assistance guides (opens in a new tab) cover Medicaid, VA, and USDA programs that in many cases specifically cover ramps as a qualifying home modification.
Frequently Asked Questions
How long does a wheelchair ramp need to be for a typical entry step?
Using the standard 1:12 slope guideline, a 6-inch step needs at least 6 feet of ramp length, and a 12-inch step needs at least 12 feet. This is why entryways with a significant step up often need an L-shaped or switchback ramp design rather than one long straight run, to fit the required length in the available space.
Are portable ramps a good option instead of a permanent one?
Portable ramps (folding or telescoping) work well for occasional use — visiting a home that isn't otherwise modified, or for temporary recovery periods — but they're generally not rated for the same daily, independent use as a permanent ramp, and most aren't designed for someone to walk or roll up unassisted every day long-term.