This tool helps estimate whether a wheelchair or mobility device will fit through a doorway or vehicle opening using overall width and a safety buffer. Results are estimates – always confirm measurements against manufacturer specifications.

If you haven’t confirmed seat width yet, start with the Seat Width Finder.

Not sure which device you’re checking? Choose Equipment.

Use inches or centimeters based on how your measurements were taken.

• PASS = Opening width ≥ (device overall width + safety buffer)
• FAIL = Opening width < (device overall width + safety buffer)
• Measurements can vary by model and accessories; confirm specs when possible.

Picked a device? Confirm handle height next.

How to measure (quick)

Use the guides below to measure correctly before using this tool. Each guide explains where and how to measure, along with common mistakes to avoid.

• Overall Width Explained
• How to measure a doorway clear width (guide coming soon)
• How to measure a vehicle opening (guide coming soon)

**Measurement definitions live on the hubs above.

Limitations and notes

• Doorway clear width can be reduced by trim, door hardware, or angled approaches.
• Vehicle openings vary based on door angle, interior trim, and seat position.
• If clearance is close (for example, under 0.5 in / 1 cm), consider using a larger safety buffer.

When in doubt, prioritize manufacturer specifications over estimates.

Who this tool is for

This tool is intended for wheelchair users, caregivers, clinicians, and anyone evaluating whether a mobility device will fit through common openings.

Example

Example: A wheelchair with a 24-inch overall width and a 1-inch safety buffer requires at least a 25-inch clear opening. A 28-inch doorway would PASS; a 24-inch doorway would FAIL.

FAQ

Question:
What if my measurement is right on the edge?

Answer:
If clearance is very close, consider increasing the safety buffer or confirming measurements directly from the manufacturer’s specifications.

Question:
What is a safety buffer?

Answer:
A safety buffer adds extra clearance to account for hand space, measurement error, and small variations between devices and openings.