Give your dogs the freedom to go outside as they please with the Large Dog Door – Brown. As the name suggests, the Large Dog Door – Brown is suitable for larger dogs, measuring up to a shoulder height of 25 inches. Its lightweight flap means it can also be used by cats, who will no doubt want to keep their beady eye on what your canine companion is up to out there! Unsure of what pet door you need? Click Here to find your perfect door. Find our list of approved pet door installers hereKey features:Suitable for large dogs up to a shoulder height of 630mm (25”), for example: Labradors and German shepherds. May also be used by catsRobust locking panel provides security and makes it clear to your dog when the door is lockedSilent action with vision panelDraught- and weather-proof fully brush sealed flap with magnetic closureRain-proof seal. Product specifications and additional info:Self-lining to 50mm (2”) thick – ideal for all doors and walls (requires 2mm (3/32”) thick plastic sheet for lining walls over 50mm (2”) thick). A wall liner can be created using 2mm metal sheeting.Installation: UPVC/metal door, wall, wooden door. Not for glass installation. Cut-out size: width 318mm (12 1/2”), height 391mm (15 3/8”), flap opening size: 300mm width 380mm heightOverall size: width 366mm (14 3/8”), height 441mm (17 3/8”)3-year guarantee. .