Measure across the widest point of hips or thighs while seated
✓
Complete Size Reference Chart
Seat Width
Hip / Thigh
Waist Size
Weight Range
Frame Type
16"
12" – 14"
28" – 34"
Under 150 lbs
Petite / small adult
18"Most Common
15" – 17"
34" – 40"
150 – 250 lbs
Average adult
20"
18" – 19"
40" – 46"
200 – 300 lbs
Larger / wider frame
22"
20" – 21"
46" – 52"
250 – 350 lbs
Plus size
24"
22" – 24"
52" – 62"
300 – 450 lbs
Bariatric
💡 Before you choose:
When between two sizes, always go larger — a slightly wider seat is more comfortable than one that's too narrow.
Using a seat cushion or hip brace? Add that thickness to your measurement.
Need a bariatric model? Contact us — we carry heavy-duty reinforced frames.
