We offer unique extension pieces for sliding doors over 211cm tall. Each piece adds 12cm of height, and you can use as many as needed. The support bars ensure security without compromising it. Simply slide the extension piece onto the support bars, screw them together and the pet door will remain adjustable. This is one of our Registered Designs, so you won't find it anywhere else!
Please note:
-If you have a screen door adapter and you would like to purchase extension pieces you will need to get add on adapter lengths for it also. See here
-If you are adding more than 1 extension piece to your door, we recommend purchasing extra weather seals for the installation. See here