The ProBasics K7 Heavy Duty Wheelchair in the 22" × 18" configuration exists for exactly that situation: full heavy-duty capacity on a frame that's far more manageable in a normal home.
Capacity and seat width are two different decisions
This is the single most useful thing to understand when shopping for a bariatric chair.
Weight capacity is a structural safety limit — the point at which the frame, axles, and cross-bracing were tested. Exceeding it risks frame failure and a fall from seated height. It's not negotiable and not something to round down on.
Seat width is about fit and comfort. Measure across the widest point of the user's hips and thighs while seated, wearing normal clothing, and add roughly 1–2 inches of total clearance. Too narrow causes pressure points and skin breakdown; too wide makes self-propelling harder because the user must reach further out to the hand rims.
A larger person doesn't automatically need the widest available seat. Getting these two decisions right independently is what produces a chair that's both safe and actually usable.
Why the narrower frame matters at home
Overall width runs roughly 8 inches wider than the seat, so a 22" seat gives you an overall footprint around 30" — versus roughly 36" for a 28" seat. That's the difference between clearing most interior doorways and being stuck in the hallway.
Measure your narrowest doorway before ordering. Bathrooms in older homes are the usual pinch point, and an inaccessible bathroom undermines the whole purpose of the chair. This one measurement prevents the most common bariatric wheelchair return.
What you get
- Weight capacity: 450–600 lbs.
- Frame: Heavy-duty slide tube steel with silver vein finish — reinforced throughout, not a standard chassis with a wider seat bolted on.
- Upholstery: Heavy-duty padded vinyl, comfortable under load and easy to wipe clean.
- Rear wheels: 24" urethane with durable hand rims for self-propelling.
- Front casters: 8" × 2" semi-pneumatic, adjustable in 3 positions to tune seat height and ride.
- Armrests: Removable desk-length arms with padding — they come off completely for side transfers, and the desk shape lets the chair pull up to a table.
- Wheel locks: Easy push-to-lock.
- Reimbursement: K0007, plus E0990 for elevating legrests.
Two features worth understanding
Removable desk-length arms. Transfers are physically demanding for both the user and the caregiver at these weights. Arms that detach entirely mean a clear side transfer path rather than lifting up and over an armrest — a meaningful reduction in strain and injury risk for everyone involved.
Adjustable casters. Three positions let you set seat-to-floor height, so the chair can be matched to transfer height at home or set low enough for foot-propelling.
Who it suits
- Users needing genuine 450–600 lb rated support in a home with standard doorways.
- Anyone whose hip measurement suits a 22" seat rather than a 24"–28" width.
- Home care, assisted living, and clinical settings.
- Users who self-propel with the 24" rear wheels, or who are pushed by a caregiver.
One accessory worth budgeting for
If the user will be seated for long periods, add a pressure-relief cushion rated for their weight. A standard cushion compressed past its rating provides almost no protection, and pressure injuries are a serious risk with prolonged sitting. It's an inexpensive addition that prevents an expensive, painful problem.