5 essential tips to properly fit a wheelchair. 1. Seat Width: Measure the widest part of the person’s hips or thighs and add 1-2 inches to ensure comfort and prevent pressure sores. 2. Seat Depth: Measure from the back of the person’s buttocks to the back of the knee, then subtract 1-2 inches to avoid rubbing or restricting movement. 3. Seat Height: Ensure the seat height allows the person’s feet to rest flat on the floor or footrests, with their knees at a 90-degree angle to prevent pressure on