For two cats, i would do this spuble long and keep it umder a window sill, drill some holes in the back so it can air out, keep both sides totally separate so the cats can have their own space but also keep everything together for cleaning purposes.
Currently working on the same solution at home. No more visible cat litter box in the apartment. I need this bag asap!
Cats Toys Ideas - Two cats hanging out on DIY cat shelves made using IKEA MOSSLANDA picture ledges at different distances and heights above a sofa - Ideal toys for small cats
Cat Litter Box_Cat Litter Box & its tree_做一只有生活品质的喵 and like OMG! get some yourself some pawtastic adorable cat shirts, cat socks, and other cat apparel by tapping the pin!
STUVA litterbox for 4 kitties
STUVA litterbox for 4 kitties - mine would probably prefer two separate chambers. STUVA does come in a single-width drawer, and you could get two. The trofasts have very low sides, though -- you'd want to use high-walled boxes so they didn't kick litter e
Kallax cat scratching furniture ~ modified cabinet from IKEA's Kallax line (formerly Expedit) ~ sisal rope wrap & climbing wall for claws, cubby for hiding, toy/supply storage below from IKEA Hackers: