The Regalo Easy Step Gate secures a safe area for your toddler or pet. The expandable design, with an included 6-inch extension, fits a 29-inch to 39-inch opening. With a height of 30 inches it will keep a medium to large dog confined. Simply screw the hardware into the top and bottom ends of the gate. You can then gently screw the padded pressure plates against the door frame. This quick-release levered gate comes in durable white metal.