Building a Wheelchair Ramp That Works for Your Home

What you need to measure before you start

A wheelchair ramp needs to rise gradually enough that someone using a wheelchair can push themselves up without exhausting their strength or losing control. The standard is a 1-to-12 slope, which means for every 12 inches forward, the ramp rises 1 inch. If your door is 2 feet higher than the ground, you need a ramp that is 24 feet long.

Start by measuring the vertical distance from the ground to your door threshold or deck. Use a level and a tape measure — place the level on the ground, raise one end until it is level, and measure the height at the door. Write this number down. Then multiply it by 12 to find the minimum ramp length you need. A 1-foot rise requires a 12-foot ramp; a 2-foot rise requires a 24-foot ramp.

Next, measure the width of your doorway and the space available in front of your door. Most ramps should be at least 36 inches wide to allow a wheelchair to pass through comfortably, though 48 inches is better if space permits. Check whether your yard slopes naturally — a slope that already angles toward the door means you need less ramp length.

Key Takeaways

• The standard slope for a wheelchair ramp is 1 inch of rise for every 12 inches of length; steeper ramps are harder to use and may violate building codes.
• Measure the vertical height from ground to door, then multiply by 12 to find the minimum ramp length your space requires.
• Ramps need landings (flat platforms) at the top and bottom, and every 30 feet of length if the ramp is longer than that.
• Check your local building department before you build — ramp codes vary by location, and some require permits even for residential ramps.
• A professional contractor can handle site assessment, permitting, and construction, though a basic ramp is a manageable DIY project if you have carpentry experience.

Landings, handrails, and what the code requires

Every ramp needs a flat landing at the bottom and another at the top, each at least 5 feet long and 3 feet wide. These landings give someone time to stop, turn, or rest. If your ramp is longer than 30 feet, you need a landing in the middle as well. The landing at the top must extend at least 1 foot beyond the door threshold so the wheelchair can sit level while the door opens.

Handrails are required on at least one side of any ramp longer than 6 feet, and on both sides if the ramp is longer than 30 feet. Handrails should be 34 to 38 inches high, graspable (1.25 to 2 inches in diameter), and extend 12 inches past the top and bottom of the ramp. They must be sturdy enough to support someone's full weight if they stumble.

Building codes for residential ramps vary by state and county. Some places do not require a permit for a ramp under a certain height or length; others require one for any permanent structure. Contact your local building department or code enforcement office before you build. They can tell you whether a permit is needed, what the specific slope and landing requirements are in your area, and whether an inspection is required before you use the ramp.

Materials and construction basics

Most residential ramps are built from pressure-treated lumber or composite decking. Pressure-treated wood is less expensive and easier to work with if you are building yourself; composite materials cost more but require less maintenance and last longer in wet climates. The frame is typically built from 2-by-10 or 2-by-12 lumber, with the deck surface made from 2-by-6 boards laid perpendicular to the frame.

The surface must be slip-resistant, especially in wet weather. Pressure-treated wood becomes slippery when wet, so many builders add a textured coating, adhesive-backed grip tape, or metal nosing along the edges. If you use composite decking, choose a product rated for outdoor use and slip resistance.

The ramp must be anchored securely to prevent shifting or settling. This usually means concrete footings below the frost line (the depth at which soil freezes in winter — your building department can tell you this depth for your area), or bolting the frame to the existing structure. If the ramp attaches to your house, the connection must be flashed to prevent water from running behind the siding and causing rot.

Hiring a contractor versus building it yourself

A professional ramp contractor will assess your site, handle permitting, and build to code. They know local requirements, can spot problems like poor drainage or unstable soil, and carry liability insurance. The cost varies widely depending on ramp length, materials, and local labor rates — a basic 12-foot ramp typically costs between $1,500 and $3,500, while longer or more complex ramps cost more.

If you have carpentry experience and your ramp is short and straightforward, building it yourself can save money. You will need basic tools (circular saw, drill, level, tape measure), lumber, concrete for footings, and fasteners. The work involves digging footings, building the frame, installing decking, and adding handrails. If you are unsure about any step — especially the foundation or the connection to your house — hire a professional for that part.

Whether you build or hire, plan for at least a few weeks from start to finish. Permitting can add time if your local office is backlogged. If you need the ramp urgently, ask the contractor or building department whether you can begin work while a permit is pending, or whether a temporary ramp is an option while you wait.

Drainage, maintenance, and seasonal concerns

Water pooling on or under a ramp causes rot, ice buildup, and slipping hazards. Design the ramp so water runs off the sides and ends, not across the surface. If the ground under the ramp stays wet, add a layer of gravel or install a drain line to move water away. In cold climates, make sure snow and ice can be cleared safely — a ramp that is too steep becomes unusable in winter.

Pressure-treated wood needs inspection every year for rot, especially where it meets the ground or where water collects. Check handrails for loose bolts and the deck surface for splintering or soft spots. Composite decking requires less maintenance but should still be inspected for damage and cleaned periodically to prevent algae growth, which makes the surface slippery.

In winter, salt and sand used to melt ice can damage wood and composite materials. Rinse the ramp after winter weather clears. If you live in a snowy climate, consider whether a removable or retractable ramp might work better than a permanent one, or whether a covered ramp would reduce ice and snow accumulation.

Alternatives if a traditional ramp will not fit

If your space is too small for a 1-to-12 slope ramp, you have other options. A steeper ramp (up to 1-to-8 slope) is sometimes allowed for short distances, though it is harder to use and may not meet code. Check with your building department about whether this is permitted in your area.

A modular or portable ramp can work if you do not need the ramp every day. These are lighter and shorter, though they are less stable than a permanent ramp and require someone to set them up and take them down. They cost $300 to $1,500 depending on length and material.

A platform lift (also called a vertical lift or wheelchair lift) takes up much less space than a ramp and can bridge a height of up to 4 or 5 feet. These cost $3,000 to $15,000 installed, require electricity and maintenance, and need a backup plan if the lift breaks down. They are most practical for small height differences or when space is severely limited.

Getting help with planning and cost

An occupational therapist can assess your specific needs and recommend ramp specifications tailored to the person who will use it. Some insurance plans cover this assessment. Your local aging services office or disability services agency may also offer site assessment services, sometimes at no cost.

Some states and counties offer grants or low-interest loans for home modifications, including ramps. These programs are often run through housing authorities, aging agencies, or disability services offices. may be able to access and funding amounts vary by location. Contact your local Area Agency on Aging or your state's vocational rehabilitation office to ask what programs exist in your area.

If you are a veteran, the Department of Veterans Affairs may cover ramp construction through its Aid and Attendance benefit or Specially Adapted Housing grant. Contact your local VA office to learn whether you meet the requirements.

Frequently Asked Questions

Can I build a ramp steeper than 1-to-12 if I do not have space?

Some building codes allow up to 1-to-8 slope for short ramps (under 6 feet), but steeper ramps are much harder to use and can be unsafe. Check your local code first. If a standard slope will not fit, a platform lift or modular ramp may be a better choice than a steep permanent ramp.

Do I need a permit for a temporary ramp?

Temporary ramps are sometimes exempt from permitting, but this varies by location. Call your building department and describe what you plan to build — they can tell you whether a permit is needed and whether temporary ramps have different requirements than permanent ones.

What happens if my ramp freezes over in winter?

Ice makes any ramp unusable. In cold climates, plan for snow and ice removal, or consider a heated ramp system (expensive) or a seasonal ramp you remove in winter. A covered ramp reduces ice buildup. If winter ramps are not practical, a platform lift may be a better long-term choice.

How much does a wheelchair ramp cost?

A basic 12-foot ramp built by a contractor typically costs $1,500 to $3,500. Longer ramps, complex sites, or premium materials cost more. Building it yourself with materials you purchase can cost $500 to $1,500, but requires carpentry skill and time.

Can I attach a ramp directly to my house?

Yes, but the connection must be flashed to prevent water from running behind your siding and causing rot. This is a detail a professional contractor will handle correctly. If you build it yourself, consult a guide specific to your house type (wood frame, brick, etc.) or hire a professional for this part.