Your new active wheelchair should feel like an extension of you. The correct fit improves comfort, control, and independence. Use this guide to understand the key sizing choices and how they affect daily life.
Where Will You Use Your Wheelchair?
Indoors
- Choose a compact frame for tight spaces.
- Consider an inset front end for easier turns in hallways, kitchens, and bathrooms.
Outdoors
- For rough paths or gravel, consider wider tyres with a deeper tread.
- Power add-ons can help on hills or longer journeys. Ask us about options that fit your chair.
Key Measurements to Get Right
Seat Width
Seat width should allow gentle contact at the hips without compressing soft tissue. Too wide reduces stability and makes the push rims harder to reach. Measure while wearing normal outdoor clothing.
Seat Depth
Match thigh length minus about 2–3 cm. Too short reduces support. Too long can load the back of the knees and affect circulation.
Seat Height (Front and Rear)
Aim for knees near 90 degrees with feet supported. Seat-to-floor height affects push efficiency and transfers. Front and rear heights set your seat “rake,” which changes handling and stability.
Backrest Height
Lower backs improve trunk freedom and propulsion. Higher backs increase support for posture or longer sitting. Choose the lowest height that still maintains control and comfort.
Armrest Height
Arms should rest without lifting the shoulders. If you propel often, you may prefer no armrests for clearance. Removable or minimal arm supports can balance comfort with movement.
Axle Position and Camber
Bringing the rear axle forward reduces rolling resistance and improves push efficiency. Too far forward can affect stability. Wheel camber widens the base and protects hands but increases overall width.
Comfort + Performance = A Chair That Works for You
The right setup reduces fatigue, improves posture, and increases control. Small changes in width, depth, or axle position can make a big difference. We tailor each build to your body and routine.
Get Personalised Sizing and Setup
Book a professional assessment to confirm your measurements and try configurations in real time. We will record precise dimensions, check posture, and fine-tune your chair for daily life.
📞 Call: 01789 339 738
📍 Visit: Unit 3 & 4, Avenue Fields Industrial Estate, off Ave Farm, Birmingham Rd, Stratford-upon-Avon CV37 0HT
🌐 Book online: Free Home Assessment

Frequently Asked Questions
How do I know my correct seat width?
Measure across the widest part of your hips while seated on a firm surface, wearing typical clothing. Add a small allowance for comfort. We confirm the final width during assessment.
What happens if the seat depth is wrong?
Too short reduces thigh support and can cause fatigue. Too long presses behind the knees and affects posture. We set depth to support the full thigh without contact at the popliteal area.
Do I need a high or low backrest?
Choose the lowest back that still maintains posture and trunk control. Go higher if you need more support for comfort, tone management, or longer sitting times.
Will axle position change stability?
Yes. Moving the axle forward improves efficiency but can make the chair livelier. We balance efficiency and stability based on your skills and environment.