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It's simpler than you think to set up the cat flap on the solid uPVC panel or a sealed double-glazed unit. However, if you don't have the right equipment or know-how, you'll require the help of professionals. This guide will teach you how to mark the measurement, cut and mark the cat flap area on the uPVC panel. Additionally, learn how to make the flap weatherproof and draft-proof. Safety A upvc-clad panel with an enclosed flap for cats is a great way to ensure your pet'