How many cats?
1
2
3
4
5
Floors cats can reach
1
2
3
Your biggest cat, nose to base of tail:
45 cm
3
trays
Rule of thumb: trays = cats + 1 (and at least one on each floor), each tray about 1.5 times your cat's nose-to-tail-base length. Measure your cat once while it stands relaxed.