Cat litter box: Get a plastic container and cut a hole in the front. Make sure the box is a little bigger than the litter container itself so that it can trap the litter inside the box. Put a foam mat at the bottom, a few hooks on the side for items such
sealed with a tinted, outdoor-grade, water-based waterproofer that has no shine. This protects the wood surface from occasional messes and provides easy cleaning. Manufacturer recommends cleaning the interior with a mild cleaner and the
Use a Rubbermaid under-bed storage bin and drill 4 small holes for drainage. Layer gravel, soil and sod. Use on a balcony or deck or catio. I will end up cleaning cat grass barf a lot off the stone pavers, but okay.
Good idea making the box/trunk/bench large enough to hold the clean out stuff too I hate cat litter and have vowed that a litter box will never be in my house, but this may change my mind - Custom DIY cat litter box redesign