Most walkers can support users up to 300 lbs. However, some heavy-duty models like the Deluxe Bariatric Walker can hold users up to 500 lbs. These types of bariatric walkers typically use welded steel to add more reinforcement to the frame. Some other models like the McKesson Aluminum/Steel Bariatric Folding Walker use A-frame aluminum construction with side braces and steel legs.