Mahjong Setup: Tiles, Seats and Walls

A correct mahjong setup starts with the variant. Inventory the tiles, remove unused extras, assign East/South/West/North, build four equal walls, and confirm the wall break, replacement area, winning minimum, and match endpoint before dealing.

What you need to play mahjong

Required for most tables

• A complete tile set for one named ruleset
• Four players for standard play
• A stable square or round table
• One concise rules and scoring reference
• Paper, chips, sticks, or an app if the match tracks points

Variant-specific equipment

Mahjong Setup: Tiles, Seats and Walls: Ruleset, Tiles used, Common additional equipment

Ruleset	Tiles used	Common additional equipment
Japanese riichi	136	Two dice, dealer/round marker, four sets of score sticks
MCR	144	Dice, wind markers, score sheet
Hong Kong-style	136 or 144	Dice, chips or counters; flower use varies
American mahjong	152	Four racks and pushers, dice, current card for every player

Many commercial sets include spare blanks, jokers, extra flowers, or red fives for more than one variant. “The box contains 166 tiles” does not mean all 166 belong in the wall. Use the tile count guide to identify extras.

Inventory the set before shuffling

For a 136-tile base set, confirm four copies of every suited and honor tile:

• 36 dots/circles;
• 36 bamboo;
• 36 characters;
• 16 winds; and
• 12 dragons.

A 144-tile Chinese/MCR set adds eight flowers and seasons. American sets commonly reach 152 by using eight jokers along with the 144-tile set. Riichi uses the 136-tile base; marked red fives replace ordinary fives rather than increasing the total.

Remove unused tiles into the box. Mixing one accidental flower or duplicate spare into the wall can invalidate every hand that follows.

Assign the four seats

Mahjong seats are East, South, West, and North. East is the dealer. The prevailing wind is a separate match state and may also begin at East.

Use the selection method in the ruleset: draw wind tiles, roll dice, or continue the rotation from the previous hand. Place wind markers where everyone can see them.

Seat names are safer than geographic directions. Say “South draws after East” according to the chosen table diagram instead of assuming every player interprets clockwise the same way.

Build four walls of the correct length

Shuffle all active tiles face down with both hands. Keep faces hidden and give every tile a chance to move. Each player then builds a wall two tiles high:

Mahjong Setup: Tiles, Seats and Walls: Active tiles, Stacks per wall, Tiles per wall

Active tiles	Stacks per wall	Tiles per wall
136	17	34
144	18	36
152	19	38

Push the four walls together into a square. The wall should be reachable without leaning across exposed hands.

Automatic tables perform the shuffle and wall construction internally, but players still need to select the correct game mode and tile count.

Choose the wall break and draw source

East normally rolls dice or follows the variant’s random method to identify a wall and count a break. The exact counting direction and starting stack differ. Use the diagram from that ruleset.

Riichi separates a 14-tile dead wall containing replacement draws and dora indicators. MCR and Chinese regional games handle flowers and kong replacements through their own wall-end procedures. American play breaks a 19-stack wall before dealing and then performs the Charleston.

Do not borrow a dead wall from riichi or a Charleston from American play because the physical set looks similar.

Prepare scoring and table references

Place only the reference needed for this game within reach:

• current WRC sheet for riichi;
• official MCR pattern list;
• agreed Hong Kong fan table; or
• current American card.

Record the house minimum, optional rules, and match length. The European Mahjong Association publishes its MCR rulebook, and the World Riichi Championship keeps its current rules and scoring material together.

For American play, every player should be looking at the same year’s card and following the same rule source.

Set up the table for readable play

Leave space for ordered discard rows, exposed sets, replacement tiles, and score objects. Keep drinks outside the wall corners. Place phones, bags, and unused tiles away from the live playing surface.

Accessibility matters:

• use bright, even light without glare;
• rotate or label seat markers clearly;
• choose indexed tiles if a learner needs number support;
• keep the scoring sheet large enough to read; and
• allow seated players to push walls rather than reach across the table.

These changes improve play without changing the rules.

Pregame setup checklist

1. Name the exact ruleset and edition.
2. Count the active tiles and box every unused extra.
3. Assign East, South, West, and North.
4. Confirm wall length: 17, 18, or 19 stacks.
5. State the break and replacement-draw procedure.
6. Put the correct score reference in view.
7. Agree on the winning minimum and match endpoint.
8. Count each starting hand before East discards.

Common setup mistakes

• Using every tile supplied by a multi-variant set
• Building 18 stacks for a 136-tile game
• Confusing seat wind with prevailing wind
• Mixing draw directions from two tutorials
• Forgetting the riichi dead wall
• Starting American play without a shared current card
• Leaving the scoring minimum undecided

Setup rule: count the active set first. Wall length, replacement draws, and the deal all depend on that number.