Big Dog 3 Step Pet Stairs hold up to 200 pounds Make life easier on your pet. The Big Dog Three Step Pet Stairs are 17″ wide for large sized dogs. These pet steps are constructed from plywood and are covered with plush cut-pile commercial carpet.Even the lowest heights can become cumbersome and inflict pain. Ease your pets concern for their tender legs and back by giving them way to avoid heavy impacts with these pet steps.