“Jumbo”, “Giant” and “XL” do not give you a measurement to compare with your cat. Check the actual model’s usable interior, entrance and overall footprint rather than assuming that the largest-sounding name is the best fit.
Build a comparison with measurements
- Internal length and width: the area available to the cat, excluding rims and parts of the enclosure.
- Entrance: opening width, height and step-over height.
- Headroom: space above the litter surface in a covered model.
- External footprint: the space the complete tray takes up in your room.
- Operating restrictions: model-specific limits for automatic trays.
Use body length as a starting point
Catsan’s sizing guidance recommends a tray around one and a half times the cat’s length from nose to the base of its tail. Exclude the tail itself. This is a starting guideline alongside observing whether your cat can turn, dig and toilet comfortably.
Do not confuse high sides with more floor space
A high rim does not increase usable floor area. Consider whether your cat can step over it and whether a hood reduces headroom. For a covered tray, the opening and interior need separate checks.
Compare before ordering
Use our size guide and compare the litter tray range. If a product page only provides external measurements, ask for the missing interior and entrance dimensions before deciding. Read our enclosed-versus-open comparison for the other trade-offs.


