We wrote about this a few years ago. The other day a customer wrote to say that her cat sprays urine while in the litter box. We decided it was time to resurrect the photo of what we use for litter boxes.
When our cats started getting really old and unable to squat to urinate their pee would fly over the walls of standard pet shop litter boxes. So we bought two plastic storage boxes and cut out an opening (you can cut the opening low for cats with poor mobility as we did here or higher for younger cats). The sides are very high which prevents urine from hitting the floor. And the box’s depth is great, the cat get step inside, easily turn around and get in a good position to do their business.
The high sides are also great for cats who like to dig their way to China and who scatter litter everywhere.
These storage boxes will save your walls, floors, and your sanity!