Wheelchair Cushions Australia — Pressure Relief & Sizing Guide
Wheelchair Cushions Australia — Pressure Relief & Sizing Guide
A wheelchair cushion is not optional for daily wheelchair users. Without one, the risk of pressure injuries is significant. This guide covers the main types — foam, gel, memory foam, and air — and how to choose the right size and density.
Wheelchair Cushions at CareAid
Cushion types and pressure relief
| Type | Pressure relief | Best for |
|---|---|---|
| Standard foam | Basic | Low-risk users; part-time wheelchair use |
| Contoured foam | Moderate — shaped to distribute weight | Daily users; coccyx protection; comfort |
| Gel-filled / dual gel | High — gel flows around pressure points | Daily users; users at pressure injury risk |
| Memory foam | High — conforms slowly to body shape | Daily users; comfort-focused |
| Air / alternating air | Very high — manual or automatic pressure redistribution | High-risk pressure injury users; extended sitting |
Getting the size right
A wheelchair cushion should match the seat width of the wheelchair. Standard widths are 44cm (17"), 46cm (18"), 50cm (20"), and 56cm (22"). A cushion that is too wide will compress against the armrests; too narrow leaves the outer thighs unsupported.
Depth (front to back) is usually 40–45cm — sufficient for most adults. Depth primarily affects thigh support; it should extend to within 2–3cm of the back of the knee.
Signs you need a better cushion
- Red marks or skin breakdown on the sitting surfaces
- The user shifts position frequently to relieve discomfort
- Existing cushion has "bottomed out" (sits on the pan with no rebound)
- An OT or wound care nurse has recommended upgraded pressure care
NDIS and Home Care Package funding
Wheelchair cushions are commonly funded as AT under NDIS. For pressure injury prevention, an OT may assess and prescribe a specific type. Higher-grade air cushions may require prior approval.
Buying with NDIS, Home Care or DVA?
Self-managed & plan-managed participants can buy directly from us — no registered provider needed. Same-day quotes, compliant tax invoices, GST-free where eligible.
Request a same-day quote →NDIS & funding questions
Can I buy wheelchair cushions with my NDIS funding?
Yes. Self-managed and plan-managed NDIS participants can buy directly from CareAid Supplies — you do not need a registered provider. Agency-managed participants must use a registered provider. We issue a compliant tax invoice for fast plan-manager payment.
Do I need an occupational therapist assessment?
For low-cost assistive technology (generally under $1,500) you usually do not. Mid-cost items may need written advice from an OT. Ask us and we’ll advise — or request a quote and we’ll guide you.
Are these items GST-free?
Many mobility, bathroom and daily-living aids are GST-free medical aids under Schedule 3 of the GST Act when designed for people with an illness or disability. We show the correct GST on your invoice.