Wall Liner and Tunnel Kits

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If you plan to install a dog door or cat door through a wall, it's vital that the wall be properly framed out. A wall kit for doggie door installations will have complete liner, that will be all in one piece where cat tunnel pieces are generally about 2" or so and you add as many as are needed to go all the way through.  If you have the skills to frame the wall yourself, that's fine. We think that the serious potential for damage to the wall--through leaking rainwater into the wall--or damage to yourself--through cutting into an electrical cable--is large enough that it's probably a good idea to give the job to a licensed contractor.

Whether it's you or a contractor, though, choosing a manual or electronic dog door that has a wall kit or tunnel liners available for it will greatly simplify the job. Remember that a wall tunnel kit is specific for that particular model or manufacturer and they are not interchangeable.

Installing a pet door in a wall raises a few interesting points:

  • You like to install as low as possible, while keeping the top of the opening at least as high as the pet at the withers. You can't, though, cut down into the mud still that runs around your foundation. That's as low as you can go.
  • You may not like to cut into your molding. Steps or a ramp may make the pet door accessible even though raised up above the molding.
  • The same height problem probably comes up on the outside as well. A platform, steps or a ramp might be helpful there as well.
  • If you're concerned about security, here's a great way to hide your pet door!
  • Yes, you can purchase tunnel liners or a wall kit here and then navigate to the pet doors for doors or electronic pet doors for doors section to get the corresponding pet door. However, you'll find both the pet door and the wall liners / wall kit in the pet doors for wall installation pages.
  • Some manufacturers only offer tunnels for certain products like the cat and dog mate wall liner tunnels. They are only available for the smaller cat doors so we have had quite a few customers build their own tunnels.
  • If you have larger pets that also might be going through a thicker wall keep in mind they might step onto the dog tunnel while going through. For this reason we would recommend going with a pet door that has a more sturdy aluminum tunnel or framing under the tunnel with wood to brace it.