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RV living with cats requires some planning, and one thing to figure out is where to put the litter box so that it's out of the way. With some ingenuity, you can hide a litter box in just about any empty space in an RV. Here are a few ideas for litter box storage.
In a closet
A cat hole like this one, which can be stained or painted, can to allow a cat to access a litter box behind a closed door.
Under a dinette booth
Inside a storage bay
If you can find a place to cut a hole for access, the advantage of this location is that the litter box can be cleaned from outside. A cat door with weather stripping can help minimize drafts.
The owners of the RV pictured below chose not to have a built-in vacuum system in order to free up the ideal space for their cat's litter box.
Attempting to adapt these ideas for our RV, we used a cardboard concrete form as a tunnel to bypass some electrical wiring leading through the stairs into our storage bay. It's not pretty on the litter box side, but it works!
At first we were worried that our 14-pound cat might not fit through metal frame of the stairs, which is only 6 inches high, but it's amazing how quickly and easily he can flatten himself and dart into his tunnel when he wants to!
Smell hasn't been a problem as long as we clean the litter box regularly.
Under the sink
A cat flap could be installed on the side of a cabinet, like in the picture below, or through a door on the front.
Another option involves temporary cabinet door removal instead of a cutting a permanent hole. You could even remove both doors and cover the space under the sink with a curtain instead.
Under the bed
This RV owner uses a plastic storage bin with a hole cut in the side as a tall-sided litter box to help minimize the mess and allow side entry in a low-clearance under-the-bed hiding spot.
In a storage trunk
In an end table
A thrift store find can be used to conceal a litter box.
Alternatively, ready-made litter box cabinets are available to match any style of decor.
If you're looking for other ideas for RVing with pets, check out my RVing with Pets Resource Page: