The Carlson Extra Wide Walk-Thru Pet Gate with Pet Door expands from 29 to 34 inches. Add the included 4-inch and 6-inch extension and expand your gate to 44 inches to cover wide openings and stairways. Convenient walk-through design has an easy, one-touch release handle. Patented pet door is 10 inches by 7 inches to let small pets pass through, while everyone else stays put. Pressure mount system makes set-up quick and easy. All-steel construction is sturdy, durable, lead-free, non-toxic and chew-proof.