Out of sight (and smell) Kitty Privy - instructions
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 everywhere. Then you could put standard cabinetry on top. Love it!
Litter box access to the garage via a small cat flap installed right in the wall... how clever!
CAT ON A CHAIR LOOKING OUT ON THE BIG WORLD........LIKES HIS PROTECTED WORLD INSIDE SO MUCH BETTER, THANK YOU VERY MUCH........ccp