Buying guide

How to Choose Support Legs for a Wheelchair Ramp

Updated on · By the Wheelchair Survivor team

Choose wheelchair ramp legs that match the ramp section’s height and approved attachment points. Check the ramp maker’s instructions for leg spacing, fasteners, load limits and the surface beneath each foot before use.

On this page (8 sections)
  1. What do wheelchair ramp legs support?
  2. How do you choose the right leg height?
  3. How do you check attachment compatibility?
  4. Where should wheelchair ramp support legs sit?
  5. How do legs affect ramp slope and landings?
  6. What safety checks should you make after installation?
  7. Which wheelchair products may help with ramp use?
  8. How to choose wheelchair ramp legs for your layout

Wheelchair ramp legs must match the ramp section’s height, attachment points and support plan. Check the ramp maker’s instructions for leg spacing, fasteners and the surface under each foot before anyone uses the ramp.

Measure the rise where each leg will sit, not just at the doorway. A sloped yard, uneven pavement or a change in ramp direction can make the required height differ from one support point to another.

This guide explains what to check before choosing support legs for a raised ramp section. If you are still planning the overall route, start with how to design a wheelchair ramp.

What do wheelchair ramp legs support?

Wheelchair ramp legs support the raised sections specified by the ramp design. Their job is to carry the section at its planned height while keeping the ramp steady and level across its width.

The ramp’s rails and surface are part of a system. A leg that seems sturdy may still be unsuitable if it does not connect at an approved point or if its foot sits on an unstable surface.

Use the ramp instructions to confirm:

  • Which sections need legs
  • How many legs to install and where to place them
  • Which attachment points and fasteners to use
  • The approved height range and load for each leg
  • Whether the feet need a firm base, anchoring or another restraint

Do not assume that legs for one ramp brand or model fit another. A matching height alone does not confirm that the bracket, bolt pattern or frame connection is compatible.

How do you choose the right leg height?

Choose leg height from the measured rise at the support point and the ramp maker’s approved adjustment range. The finished ramp must keep its intended angle and meet the adjoining surface without a sudden lip.

Measure vertically from the firm supporting surface to the point where the leg attaches beneath the ramp. Repeat at each planned support location because the ground may slope or change height along the route.

CheckWhat to do
Ground heightMeasure at each leg location, including any change in grade
Ramp attachment heightUse the maker’s specified point on the section
Adjustment rangeConfirm the leg reaches the measurement without exceeding its limit
Finished ramp surfaceCheck level across the width and the intended slope along the route
TransitionsConfirm the ramp meets the top, bottom and any adjoining sections smoothly

Avoid making a leg taller than its approved range or stacking loose blocks under it. If the ground is too low, unstable or uneven for the approved leg, correct the base or ask the ramp maker or installer about a suitable support.

A different route may be better where the slope or available space is difficult to manage. A curved ramp for wheelchair access may suit some layouts, but it still needs supports and connections designed for that system.

How do you check attachment compatibility?

A support leg is compatible only when it fits the ramp’s intended connection and hardware. Confirm the ramp model, leg kit, bracket shape and fastener size in the installation instructions.

Look at the point where each support attaches. The connection should use the specified holes or brackets, with no improvised drilling, loose clamps or mismatched bolts unless the manufacturer approves them.

Check the materials and setup details the maker provides. Some systems use a dedicated leg kit for a specific ramp section, while others may allow adjustable supports within stated dimensions and limits.

If the ramp is rented, modular or already installed, identify its maker and model before buying legs. A photo or measurement can help a supplier identify the system, but it does not replace confirmation that the part is approved for your ramp.

Where should wheelchair ramp support legs sit?

Place support legs only at the locations given in the ramp layout. Spacing depends on the section, its design and the maker’s load guidance, so there is no universal distance that fits every ramp.

A long section may need several supports, while a short section may use a different arrangement. Do not move supports to clear a doorway or handrail without checking how that change affects the ramp system.

Set each foot on a firm, stable base. Soil that shifts, loose gravel, a cracked edge or a narrow board can let the support sink or move; ask the ramp maker or installer how to prepare that spot.

After assembly, check that the supports stay in contact with their bases and that the ramp does not rock. Recheck after heavy rain, ground movement or other changes to the surface.

How do legs affect ramp slope and landings?

Leg height affects the ramp’s position, so support legs must preserve the planned slope and transitions. A leg adjusted too high or too low can change the angle or leave a gap at an adjoining section.

Measure rise and run for the full route, then check the slope along each section after the legs are installed. Keep the surface even across its width, and confirm that each transition is smooth for the wheelchair user.

A landing provides a level place to pause or turn where the design needs one. Review how to choose a wheelchair ramp landing platform if the route changes direction or the ramp plan includes a platform.

For a longer route with limited space, consider what a switchback wheelchair ramp is. A switchback changes the route layout, but does not remove the need for compatible supports and suitable landings.

What safety checks should you make after installation?

Before use, check that each leg is secure, fully supported and adjusted within its approved range. Confirm that fasteners are in place and the ramp sections meet as intended.

Walk the setup checklist with the ramp instructions:

  1. Verify that each leg is connected at its designated point.
  2. Confirm that the feet rest on firm bases and do not rock or sink.
  3. Check the ramp’s slope and crosswise level.
  4. Inspect joints, transitions, rails and landings.
  5. Confirm any required anchoring or restraints are installed.
  6. Recheck the supports after the first use and after the ground or ramp shifts.

If a support moves, a joint opens or the ramp flexes in a way the instructions do not allow, stop using it until the cause is corrected. A qualified installer can assess a high ramp, an uneven site or a setup that lacks clear instructions.

For a broader overview of ramp styles and their trade-offs, read what wheelchair ramp types involve. If the route needs to be taken apart or moved, see what makes a wheelchair ramp removable.

Which wheelchair products may help with ramp use?

Wheelchairs with features that suit the user can be part of a ramp plan, but they do not replace correctly fitted ramp supports. Check the chair’s fit and features separately from the ramp’s height, slope and load instructions.

The chair and cushion details can help you plan transfers and seating, but they do not confirm that a ramp can support a person and chair. For seating options, see our guide to the best wheelchair with leg support.

How to choose wheelchair ramp legs for your layout

Choose wheelchair ramp legs by matching the ramp model, measured support height and maker-approved attachment points. Then verify the base, spacing, slope and transitions after installation.

Use the ramp instructions or an approved installer when you cannot confirm the required leg kit or placement. A removable wheelchair ramp may better suit a route that must be cleared or stored, but its supports still need to match the system.

Frequently asked questions

How tall should wheelchair ramp support legs be?

The legs should reach the height required by the ramp section while keeping the ramp at its planned slope and level across its width. Measure the actual rise at each support point, then use legs the ramp maker approves for that section.

Do not extend adjustable legs beyond their stated range.

Can I use adjustable legs with any wheelchair ramp?

No. Adjustable legs must fit the ramp’s frame, attachment points and instructions, and their rated height and load must suit the installation.

Check whether the ramp maker approves a specific leg kit before drilling, clamping or adding hardware.

Do wheelchair ramp legs need to be anchored?

Some ramp installations require anchoring or other restraint, while others use approved supports and connections. The ramp design, height, surface and local requirements affect the answer.

Follow the maker’s installation instructions and ask a qualified installer if the setup is unclear.

When does a ramp need support legs?

Support legs may be needed under raised ramp sections when the ramp design calls for them. The ramp’s span, height, material and support plan determine placement.

Use the maker’s layout rather than guessing based on how sturdy the ramp feels.

Can support legs make a wheelchair ramp steeper?

Legs support a ramp section; they do not set a safe slope by themselves. Changing their height can change the ramp angle, so check the rise, run and landing transitions after installation.

Keep the route within the ramp design and applicable accessibility requirements.