Things You'll Need
- Plastic tub
- Tape measure
- Magic marker
- Knife
Instructions
Purchase a large plastic tub with a removable lid that fits securely. The tub needs to be large enough for the litter box to fit in the bottom. 30 to 50 gallon is usually a good size.
Place the litter box inside the tub and fill the litter box as you normally would.
Measure the width of your cat at his belly. This is usually the widest part.
Take the lid of the tub and use a magic marker to draw a square where you want to put your door. Measure to make sure the door is wide enough before you cut.
Use a sharp knife to cut the door out of the top of the box. Put the lid securely on top of the tub.