Select from available size optionsDurable plastic frame with transparent door flap and sturdy metal bar at baseLockable with removable rear metal panelIncludes tunnel element extending the depth from .75 to 1.25 inchesIncludes template for quick and easy installation. Give your dog access to any room in the house even when the door is shut with Trixieâ€™s 2-Way Locking Dog Door. The durable plastic frame with silent action transparent door flap and sturdy metal base bar make it ideal for the garage laundry or back room door. Dimensions: (Extra Small-Small): (XS-S): Outer Frame: 9.75W x 11.25H in. (XS-S): Rough Cut Out: 8.5W x 8.75H in. (XS-S): Flap: 7.75W x 8.25H in. (Small-Medium); (S-M): Outer Frame: 11.75W x 14H in. (S-M): Rough Cut Out: 9.75W x 12H in. (S-M): Flap: 8.75W x 11.5H in. (Medium-Extra Large): (M-XL): Outer Frame: 15.25W x 17.5H in (M-XL): Rough Cut Out: 12.75W x 15.75H in. (M-XL): Flap: 12W x 14.75H in. Size: Medium.