How to Deal American Mah Jongg and Build the Wall
June 25, 2026 · Bird Bam

Dealing in American Mah Jongg starts by building four tile walls, breaking the wall with dice, and giving East 14 tiles while the other three players start with 13. Once the Charleston is complete, East discards first, and the hand proceeds counterclockwise as players pick, discard, and call eligible discards.
What happens before the first discard?
Before anyone chooses a hand from the NMJL card, the table needs a clean setup. A smooth deal prevents exposed tiles, missing tiles, and arguments about whose turn it is.
Use this beginner-friendly sequence:
- Place all 152 American Mah Jongg tiles face down in the center.
- Mix the tiles thoroughly with both hands.
- Each player builds a wall in front of her rack.
- Determine East, then roll dice to break the wall.
- Deal tiles in groups until East has 14 and everyone else has 13.
- Do the Charleston if your table is playing the standard American Mah Jongg opening.
- East makes the first discard.
Players still need the current NMJL card to choose legal hands. The setup gets the table ready; the card tells you what you are trying to make.
The standard wall setup
American Mah Jongg uses 152 tiles. At a four-player table, each player builds one wall that is 19 stacks long and 2 tiles high. That gives each player 38 tiles in her wall, and four walls of 38 tiles make 152 tiles total.
| Setup item | Standard count |
|---|---|
| Total tiles | 152 |
| Players | 4 |
| Walls | 4 |
| Stacks per wall | 19 |
| Tiles per stack | 2 |
| Tiles per player wall | 38 |
| Starting tiles for East | 14 |
| Starting tiles for each other player | 13 |
After shuffling, each player lines up 19 two-tile stacks in front of her rack. Push the walls toward the center so they form a square. Keep the tiles face down and avoid gaps; a tidy wall makes the deal easier to follow.
How to break the wall and deal
East rolls two dice. Tables commonly count around the walls from East to find which wall to break, then count stacks along that wall based on the dice total. The exact counting tradition can be taught by the host, but the practical goal is simple: identify the break point, then deal from the live wall in order.
A clean dealing pattern is:
- East takes the first two stacks, which equals 4 tiles.
- South, West, and North each take 4 tiles in turn.
- Repeat until each player has 12 tiles.
- East takes 2 more tiles, bringing East to 14.
- South, West, and North each take 1 more tile, bringing them to 13.
At the end of the deal, East has one extra tile because East discards first. If East has only 13, stop before the Charleston and correct the deal. If another player has 14, the table should also pause and fix the count before play begins.
What beginners should check after the deal
Before the Charleston, every player should quietly confirm three things:
- Tile count: East has 14; everyone else has 13.
- No exposed faces: All wall tiles and rack tiles that should be hidden are hidden.
- Clear direction: The group knows whether it is starting the Charleston and who is East.
Do not start passing tiles until the counts are correct. A one-tile error becomes much harder to unwind after players have exchanged tiles.
Where the Charleston fits
The Charleston happens after the deal and before East's first discard. In standard American Mah Jongg, players pass three tiles at a time through the Charleston sequence, using it to improve their racks and narrow possible hands.
The key beginner rule is that the Charleston is not random cleanup. You are using it to remove tiles that do not support your likely NMJL card sections. If your rack is heavy in one suit, pairs, or numbers that cluster together, keep the tiles that point toward real card options and pass tiles that do not connect.
Once the Charleston is finished, any final optional pass is resolved, and East discards to begin normal play.
Common deal and wall mistakes
Beginners can avoid most setup problems by watching for these specific mistakes:
- Building short walls: Each wall should be 19 stacks long, not 18 or 20.
- Forgetting East's extra tile: East starts with 14 because East discards first.
- Starting the Charleston too early: Count tiles before any pass begins.
- Exposing wall tiles: Keep the wall face down so no one gains accidental information.
- Mixing up player order: American Mah Jongg turns move counterclockwise around the table.
If something looks wrong during setup, say it immediately. It is better to rebuild a wall than to play an entire hand from a bad deal.
How Bird Bam helps at the table
Setup is physical, but the table still needs an organized game flow once play begins. Bird Bam gives American Mah Jongg groups an iOS companion for scoring and group play, so the table can keep hands and games organized without relying on messy paper notes.
That matters for beginners because the deal, Charleston, first discard, calls, and scoring all create small moments where players can lose track. Bird Bam does not replace the NMJL card or the tiles on the table, but it helps reduce scorekeeping friction so the group can focus on learning and playing together.
If your group wants a cleaner way to keep score after the deal is done, Bird Bam gives your table a simple iOS companion for American Mah Jongg.
Quick FAQ
How many tiles does each player get in American Mah Jongg?
East starts with 14 tiles. South, West, and North each start with 13 tiles. East has the extra tile because East makes the first discard.
How long is each wall in American Mah Jongg?
Each player builds a wall that is 19 stacks long and 2 tiles high. That makes 38 tiles per wall and 152 tiles total.
Do you deal before or after the Charleston?
Deal first, then complete the Charleston, then East discards. The Charleston is part of the opening after everyone has her starting tiles.
Can house rules change the deal?
The 152-tile set, 19-stack walls, and 14/13 starting tile counts are standard American Mah Jongg conventions. Confirm your table's house rules before play.