Protect the cabinet base by choosing a tray that contains normal use well and by dealing with spills promptly. If the manufacturer permits a removable protective liner or mat, select one that fits without curling, obstructing the entrance or making the tray unstable. Check underneath it regularly, because a liner can hide trapped moisture rather than eliminate it. Read the furniture's care instructions before adding adhesive coverings, sealants or other modifications.
These may affect the finish or make later cleaning harder. Keep joints and edges dry according to the product guidance, and inspect them when removing the tray. The cabinet should not be treated as a second litter tray or a waterproof basin unless that use is explicitly specified. Repeated leakage or accidents require a review of tray size, positioning and the cat's health, rather than simply adding more layers to protect the furniture.
If a permitted removable mat is used, add lifting and drying beneath it to the cleaning routine. Protecting the visible top of a panel is not enough if moisture can remain hidden against its edges or joints.
For product comparisons alongside this advice, see OakAlcove litter cabinet and Library House litter cabinet. The details below explain their sizes and uses.
Further reading: rspca.org.uk; battersea.org.uk.
OakAlcove litter cabinet
Library House litter cabinet
Ivory Gallery cabinet and tree