WHEELCHAIR RAMPS · ACCESS RAMPS · ADA COMPLIANCE · SOUTHWEST FLORIDA

Wheelchair Access Ramps: The Complete Guide to Choosing the Right One

From Medical Department Store — Southwest Florida's trusted mobility specialists for 25+ years
Published: April 2026 | Author: Medical Department Store Team — RESNA-Certified Mobility Specialists

We have helped thousands of families across Southwest Florida find the right ramp — at a home entrance, at a back door with a two-inch lip, in a minivan, at the base of a set of three stairs that nobody thought about until someone came home from the hospital using a wheelchair. In 25 years we have seen every ramp situation imaginable, and the questions are almost always the same.

How long does the ramp need to be? Will it work with my husband's power chair? Do I need something permanent or is portable better? What's the slope supposed to be? Those are the questions this guide answers — completely, with the charts and calculations you need to make a confident decision.

Step One: The Three Numbers You Need Before Anything Else

Before you look at a single ramp model, measure three things. Every ramp decision flows from these numbers. Get them wrong and nothing else matters.

1. The Rise

The rise is the total vertical height the ramp must overcome — from the ground to the top of the step, threshold, or entry point. Measure in inches. If there are multiple steps, add each step height together. This is your single most important number: it determines the minimum ramp length you need.

2. The Available Run

The run is the horizontal distance you have available for the ramp to occupy. Measure from the base of the step outward to the first obstruction — a wall, a fence, the end of a porch, a sidewalk. In tight spaces this number limits how long a ramp can be and therefore how shallow the slope can be. Note this number and keep it in mind.

3. The Width

Measure the width of the doorway or access point at its narrowest — including any door stop or threshold edge that reduces the clear opening. Then measure the width of the mobility device at its widest point. The ramp must be wide enough to accommodate the device comfortably. Standard manual wheelchairs are typically 24–26 inches wide. Power chairs run 24–30 inches. Scooters can be wider. Add at least 4 inches of ramp width beyond the device width for safe margins.

The ADA Slope Rule — How Long Does Your Ramp Need to Be?

The Americans with Disabilities Act establishes a 1:12 slope standard for commercial and public ramps. This means for every 1 inch of vertical rise, the ramp must extend at least 12 inches (1 foot) horizontally. This produces an incline of approximately 5 degrees — the maximum considered safe and manageable for independent wheelchair users in commercial settings.

Slope Reference Chart

Slope Suitability by User Type

The Four Ramp Categories — Which Type Fits Your Situation

Not all ramps are the same, and the right category is as important as the right length. Here is how to match your situation to the right type.

Category 1: Threshold Ramps

Threshold ramps address small lips and level changes — typically 1 to 6 inches. They sit flat on the ground and create a gradual transition over a door threshold, sliding glass door track, or small raised edge. These are the simplest ramps: no setup, no storage question, just set them in place. They are not appropriate for step rises greater than about 5–6 inches and should not be confused with full-length portable ramps. For the right situation — a 2-inch lip at the back door, a sliding door track that catches caster wheels — a quality threshold ramp is the exact right answer.

Category 2: Portable / Suitcase Ramps

Portable ramps handle rises from about 4 inches up to 36 inches or so, depending on slope tolerance and ramp length. They are designed to be picked up, folded or rolled, and moved between locations. They work for home entry steps, getting into vehicles, accessing friends' homes, hotel entry, and any temporary access situation. Suitcase ramps fold in half for easier carrying; trifold ramps fold into thirds and tend to be stiffer and more stable underfoot. Weight matters here — if a caregiver will be deploying and storing the ramp regularly, a lighter ramp makes daily use realistic.

Category 3: Modular Ramps

Modular ramps are semi-permanent or permanent systems assembled from interchangeable components — ramp sections, landing platforms, handrail systems. They are the right answer when the rise is too great for a portable ramp at a safe slope, when the installation will be in place for months or years, or when code compliance and handrails are required. Modular aluminum systems can be disassembled and reinstalled at a new location if the person moves, which makes them more flexible than poured concrete. They require proper planning, measurement, and — for complex configurations with landings and turns — professional installation guidance.

Category 4: Vehicle Ramps

Vehicle ramps are designed for loading wheelchairs, power chairs, and scooters into vans, trucks, and SUVs. They come in two main styles: portable ramps that lean against the vehicle and allow the device to be driven up, and powered or folding ramps that mount semi-permanently to the vehicle. The right vehicle ramp depends on the vehicle make and model, the type of door (side vs. rear), the weight and width of the mobility device, and whether the user is self-loading or assisted.

Which Ramp Is Right for You — Seven Questions

Work through these questions in order. Each one narrows the answer.

Ramp Products We Carry — What Each One Is For

Browse our full wheelchair ramp collection. Each product below addresses a specific set of access situations.

Ramp Type Comparison — Quick Reference

ADA Requirements — What the Standards Actually Say

For commercial and public access, the ADA is clear. For residential use, it is guidance rather than law — but following it produces the safest possible ramp. Here is the relevant summary:

Frequently Asked Questions

How do I calculate the right ramp length for my situation?

Measure the total rise in inches — the vertical height from the ground to the top of the step or entry point. For a 1:12 ADA slope, multiply that number by 1 to get the minimum length in feet. For a 2:12 residential slope, divide the rise in inches by 2 to get the minimum length in feet. A 9-inch rise needs a 9-foot ramp at 1:12, or a 4.5-foot ramp at 2:12. Always round up to the next available length.

What width ramp do I need for a power wheelchair?

Measure your power chair at its widest point — typically the armrests or footrests. Add at least 4 inches of clearance for comfortable, safe navigation. A chair that is 26 inches wide needs at minimum a 30-inch ramp; a chair that is 30 inches wide needs at minimum a 34-inch ramp, so a 36-inch ramp is the correct choice. When in doubt, go wider — ramp edges are unforgiving at speed.

Can one ramp work for both home and vehicle?

Sometimes, but not always. A portable suitcase ramp long enough for a home entry (say, 8 feet) may be too long and heavy for convenient vehicle use. Dedicated vehicle ramps are usually shorter, lighter, and designed for the specific geometry of van or SUV entry. Many families have both a home ramp and a separate vehicle ramp. We can help you evaluate whether one ramp can serve both situations given your specific rise heights.

Does Medicare cover wheelchair ramps?

Medicare does not typically cover ramps, which are considered home modifications rather than durable medical equipment. However, some state Medicaid programs, veterans' benefits, and nonprofit organizations in Florida provide ramp assistance. Some long-term care insurance policies also cover home modification equipment. Call us — we have pointed many families toward funding sources they did not know existed.

How do I keep my ramp safe in Florida's heat and rain?

Aluminum ramps handle Florida's climate well — they do not rust and do not soften in heat. The key is surface traction: anodized aluminum with a punched or textured surface, or rubber threshold ramps, provide grip when wet. Smooth aluminum is slippery when wet. Avoid ramps that will pool water at the lower end — a slight angle or a channel at the base helps drainage. Inspect the ramp surface periodically; rubber threshold ramps in continuous UV exposure may eventually crack and should be replaced.

What if my available space is not enough for a safe slope?

This is a real constraint and more common than people expect. Options include: using a different entry point with a smaller rise; a modular ramp with a turn to use available length in two directions; platform lift systems for entries where no ramp configuration is practical. We have solved this problem many times across Southwest Florida homes — call us and describe the geometry. There is almost always an answer.

We have helped families set up ramps the day a person came home from the hospital, helped caregivers figure out the right vehicle ramp for a cross-state trip, and helped businesses bring their entry into compliance without tearing out an existing staircase. The details here matter — not because ramps are complicated, but because the right measurement makes everything work and the wrong one makes every day harder.

If you read through this guide and still have questions — bring us your numbers and your situation. We will give you an honest answer, including if the solution is simpler or less expensive than you expected.

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