Interior Wall Cat Tunnel

I was tired of having to keep our bedroom door cracked open at night for the cats, and wanted a way for the cats to pass through the wall next to the door. This tunnel is designed to fit a standard 2x4 construction wall with either 3/8" or 1/2" drywall.

This tunnel was designed to work for my family cats who are roughly 13lbs; the minimum opening is 4.5" x 6.75". I mounted the tunnel 4" off the ground.

Please make a cardboard template and make sure your cat friends fit before printing an