Carlson Maxi Walk Through Pet Gate, 50-59 Inches Wide, Hardware Mounted Expands from 37 to 60 inches Can expand to 13 feet with the use of optional 24-inch extensions (sold separately) Walk-through design. Fits openings 51-59 Inches. Does NOT FIT openings 38-50 Inches 30" H x 37-60" W Pet door is 10" H x 7" W