Mahjong isn't one game — it's a family of them, and the two versions growing fastest in the West set up quite differently at the table. If you're buying a mat, it's worth knowing which game (or games) it needs to serve before you pick a size.
American mah jongg: room for racks
American mah jongg runs on 152 tiles — the standard set plus jokers — and almost everyone plays with racks and pushers. Each player's rack sits at the mat's edge, tiles are pushed out in front of it, and the yearly card needs somewhere to stand too. All of that eats table space before a single discard lands in the middle.
That's why American players gravitate to our largest sizes: 84 × 84 cm on a classic folding card table (the traditional home of the game), or 80 × 80 cm on a dining table. Racks grip better on neoprene than on bare wood, and the cushioned surface keeps a four-hour session quiet.
Riichi: compact and precise
Japanese riichi uses 136 tiles built into four walls, with discards laid out in neat rows of six in front of each player. The geometry is tidy and self-contained — a proper riichi discard pond fits comfortably inside a 66–80 cm square. Riichi players tend to care most about two things a mat provides: tiles standing up cleanly when you build your wall, and a surface that lets you slide your hand around without noise. The 2 mm cushioning does both.
Chinese mahjong and everything else
Chinese classical and Hong Kong–style games sit between the two: 136–144 tiles, walls like riichi, no racks. The 80 cm mat is the sweet spot, with 66 cm fine for a cosier table. And if your group is the kind that plays American on Tuesdays and riichi on Sundays, 80 cm is the one mat that serves both without compromise.
The part that's the same for everyone
Whatever rules you play by, the mat's job doesn't change: quiet shuffling, tiles that stand and slide cleanly, a non-slip base that keeps the game planted, and a surface that's kinder to your table than bare tiles. Every design in our collection comes in all four sizes, so you choose the artwork first and the size for your game second — see the full size guide for table measurements.