To measure seat depth: 1. Have the patient sit upright. 2. Measure from the back of the pelvis to the back of the knee. 3. Subtract around 1-2 inches to ensure some clearance at the front of the seat.
To measure seat width: 1. Measure the distance across the widest part of the hips or thighs when seated. 2. Add approximately 1-2 inches for comfort and to allow for movement.
