Build a cleaner cat litter zone with a modular base system that uses square 12 in tiles, raised perimeter rails, and removable honeycomb sand-control inserts. Start with the footprint that fits your home, then add scratch board modules when you want the same base to double as a cat activity area. Why it works Modular sizes for real homesChoose a compact 2 x 3 starter setup, a 2 x 4 standard litter area, or a 3 x 4 large layout for bigger litter boxes and multi-cat homes. Built around litter controlEvery base kit includes honeycomb cat litter inserts that help catch scatter as cats step away from the box. Finished, stable base systemSquare base tiles connect into a clean layout with raised edge rails, giving the station a more finished feel than a loose mat. Accessory-ready by designSwap in optional 11.4 x 11.4 in scratch board modules to create a scratch zone without changing the base footprint. Choose your setup Small Base Kit - 2 x 3About 24 x 36 in. Best for small apartments, single-cat homes, and compact litter corners. Includes 6 base modules and 6 honeycomb litter-control inserts. Medium Base Kit - 2 x 4About 24 x 48 in. The recommended everyday size for most cat litter areas. Includes 8 base modules and 8 honeycomb litter-control inserts. Large Base Kit - 3 x 4About 36 x 48 in. Best for larger litter boxes, automatic litter boxes, and multi-cat homes. Includes 12 base modules and 12 honeycomb litter-control inserts. Scratch Pad ModulesAdd one, two, or four replaceable scratch board inserts. Each insert fits one standard 12 x 12 in base opening and measures about 11.4 x 11.4 in with a low 0.25 in profile. Good to know Base tiles are about 12 x 12 in and 0.35 in high. Inserts are about 11.4 x 11.4 in and 0.25 in high. Use indoors on a flat floor. Lift inserts out to shake, wipe, or replace as needed. Litter box shown in lifestyle images is for context only. Scratch board modules are included only when selected as separate add-ons.