Aluminum child safety gate , the Cardinal Gates MG-15 with auto-lock, features rapid pass through in either direction. Install as dog gates or child gates in high traffic areas, doorways, stair bottoms or gate across wide spans. Cardinal child gates and baby gates are safe, sturdy, reliable metal gates with gate height extensions, gate width extensions and optional hardware for installing indoors and outdoors. Gate width is adjustable 26 ½" to 40 ½" Height 29 ½". Bar Spacing 2 ½".