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LitterBox Cat Portal through wall Passthrough - Keep that litterbox out of the house! — image 1
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LitterBox Cat Portal through wall Passthrough - Keep that litterbox out of the house!

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This LitterBox Cat Portal is designed to let a cat pass through a standard 2x4 wall.

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Model information

Category
Pets
License
Creative Commons — Attribution — Noncommercial

I wanted to keep my litterbox in the garage without needing to open the door for the cat do do his business. The solution was to design a portal to go between the studs of a 2x4 wall. 

 

The litterbox itself is a plastic storage tub. It ended up being more spacious than a large litterbox. I built an MDF box slightly larger than the plastic tub. I left enough room around it for 1" thick rigid insulation. The whole box is fully enclosed but the top is removable for nugget retrieval. 

 

The man portal print size is 234mm tall and 206mm wide. My 13 pound Egyptian Mau has plenty or room to fit through the opening. Print the front face down with no supports. I used the portal to trace where I wanted to cut a hole in the wall. The hole went just above the woodwork. Use a stud finder to make sure your between studs and be sure there is no wiring or plumbing in your wall. 

 

The Clamp requires 2x 3mm heat set inserts and 3mm screws. Use this on the non visible side of the wall to keep the portal in place. 

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