Check the listing for details. Aluminum Door Replacement Hinge. Condition: New, Made in United States. Listed at 14.91 USD. Aluminum animal access doors are resistant to warping, rusting, or breaking. Doors fit tight & install easily with relatively no maintenance. Flange on side allows pet to easily use the door. Measure the hole/opening & the door size will need to be 1" larger on each side for a weatherproof fit. Custom size doors also available. Aluminum thickness: .100" approx. Inserts are sold separately in pairs are sized to fit the hole/opening. Inserts accommodate a maximum thickness of 6" & a minimum thickness of 3.75" & are placed between wall studs to help prevent chewing. Call or view pricing on inserts. Replacement hinges also available online. Note:Special order doors cannot be returned except in the case of defective product. Please allow up to 10 working days for delivery.