The Carlson Maxi Walk-Thru Pet Gate with Small Pet Door was made for those large door and hallway openings. It is a convenient chew-proof way to contain and protect both your pet and home. Its all-steel frame is designed to expand and configure to a range of wide openings up to 58.5” wide. Use the wall-mount system for easy installation and a secure fit. The walk-through design also features an 8” x 8” pet door letting small animals pass through while everyone else stays put.