Pool comes in more varieties than most players realize. Walk into a billiard hall and you might find eight-ball, nine-ball, snooker, three-ball, straight pool, or cutthroat running on different tables. Each game uses a different number of balls, and knowing which set you need matters—especially if you’re buying a table for home.
Quick Reference: Ball Counts by Game
| Game | Object Balls | Cue Ball | Total | Rack Shape |
|---|---|---|---|---|
| 8-Ball | 15 | 1 | 16 | Triangle |
| 9-Ball | 9 | 1 | 10 | Diamond |
| 10-Ball | 10 | 1 | 11 | Triangle |
| 3-Ball | 3 | 1 | 4 | Triangle |
| Straight Pool/14.1 | 15 | 1 | 16 | Triangle |
| Cutthroat | 15 | 1 | 16 | Triangle |
| Snooker | 21 | 1 | 22 | Triangle |
| Carom/3-Cushion | 0 | 3 | 3 | None |
8-Ball Pool
16 balls total.15 object balls plus 1 cue ball.
8-ball is the standard. You’ll find it in bars, pool halls, and home basements everywhere. I keep a full 16-ball set at home, and it’s what most casual players reach for. The 15 object balls split into solids (1–7) and stripes (9–15), with the 8-ball as the game-ending target.
The balls are racked in a triangle. Standardization matters here. Regulation pool balls are 2 1/4 inches in diameter, and most quality sets follow this size. The cue ball is slightly lighter and sometimes slightly larger (a fraction of an inch) to allow your cue tip to grab it cleanly.
I’ve played with cheap plastic sets and premium phenolic resin balls. The difference in response and longevity is real. For serious players, phenolic balls like Aramith hold their shape and resist chips far better than cheaper alternatives.
9-Ball Pool
10 balls total.9 object balls plus 1 cue ball.
9-ball is faster and more tactical than 8-ball. You only play with balls 1–9, plus the cue ball. The object balls are racked in a diamond shape, not a triangle. This tighter formation changes how balls break apart.
If you want to learn 9-ball rules in detail, the core mechanic is simple: contact the lowest-numbered ball on the table and sink any ball to advance. Hit the 9-ball in, and you win immediately.
Because there are fewer balls in play, 9-ball rewards precision over luck. The smaller set means tighter angles and more aggressive shot selection. Professional tournaments favor 9-ball for exactly this reason. Skill compounds more obviously with fewer objects on the table.
10-Ball Pool
11 balls total.10 object balls plus 1 cue ball.
10-ball sits between 9-ball and 8-ball in complexity. It uses balls 1–10, all racked in a triangle. The strategy mirrors 9-ball: contact the lowest-numbered ball and sink any ball to advance.
10-ball sees less play in casual settings but remains popular in some regions and tournaments. The 10-ball itself is worth understanding if you’re exploring pool variants. It’s less forgiving than 8-ball but less punishing than 9-ball.
3-Ball Pool
4 balls total.3 object balls plus 1 cue ball.
3-ball is an old-school game designed for quick matches and small tables. With only three object balls (numbered 1, 2, and 3) plus the cue ball, games finish in minutes.
If you’re curious about how to play 3-ball, the rules are straightforward: sink all three balls in sequence (1, 2, 3), and you win. It’s a starter game for teaching cue control and bank shots.
The minimal ball count makes 3-ball perfect for tight spaces or when you just want a quick game. I’ve played it on 6-foot tables where a full 8-ball setup would feel cramped.
Straight Pool (14.1 Continuous)
16 balls total.15 object balls plus 1 cue ball.
Straight pool uses the same 16-ball setup as 8-ball but plays completely differently. There are no solids or stripes. All 15 object balls are numbered 1–15, and you can sink them in any order.
The game runs indefinitely until someone wins by reaching a target point total. When 14 balls have been sunk, the remaining ball (and the 14 sunk balls) are re-racked, and play continues. This endless loop creates marathon games that reward consistency over flashy shots.
Straight pool demands shot planning and position play that 8-ball doesn’t require. It’s fallen out of favor in casual play. Most people prefer the faster pace of 9-ball or the simplicity of 8-ball. But it remains a skill builder.
Cutthroat Pool
16 balls total.15 object balls plus 1 cue ball.
Cutthroat is a three-player game using the same 16-ball setup as 8-ball. Each player owns a set of five balls: one player gets 1–5, the next gets 6–10, and the third gets 11–15.
The 8-ball is the “poison” ball—sink it and you lose immediately. The goal is to sink all your opponent’s balls while protecting your own. It’s a mind game on top of the mechanical game.
For three-player scenarios, cutthroat pool rules are ideal. I’ve had the most fun with cutthroat at casual tables because the political layer (deciding who to target) adds a psychological edge you don’t get in head-to-head play.
Snooker
22 balls total.21 object balls plus 1 cue ball.
Snooker is played with 22 balls: 15 red balls, 6 colored balls (yellow, green, brown, blue, pink, black), and 1 cue ball. The colored balls are worth 2–7 points depending on their color.
Snooker tables are significantly larger than pool tables (12 feet vs. 9 feet for standard). Snooker balls are also smaller: 1 11/16 inches versus 2 1/4 inches for pool balls. This size difference means you can’t use a snooker ball on a pool table or vice versa without running into accuracy issues.
The game is a points competition: you alternate between sinking a red ball and a colored ball. Sink a red, then a color. Sink the red, then another color. Once all reds are gone, you sink the colored balls in order (yellow through black) to maximize points. For a full snooker-versus-pool breakdown, the differences run deep. Snooker rewards position play and safety above almost all else.
Carom (3-Cushion Billiards)
3 balls total.0 object balls plus 3 playing balls.
Carom is unique: no object balls, just three balls on the table (usually white, white with a spot, and red). Players shoot one white ball to hit the other two, bouncing off cushions to score points. You must hit three cushions before hitting the second object ball.
Carom uses no rack at all. The balls sit in a simple starting position. It’s cerebral pool for players who want to master geometry and angles in their purest form. I’ve watched serious carom players make shots that look impossible—the precision required is extraordinary.
Ball Quality Matters
Standard pool balls are 2 1/4 inches in diameter. Snooker balls run 1 11/16 inches. But diameter is just the start.
Phenolic resin balls (like Aramith) are the gold standard. They resist warping, hold their polish, and maintain consistent weight distribution through thousands of shots. Polyester balls are cheaper and fine for casual play, but they chip, warp, and lose consistency over time.
I recommend buying a full 16-ball set that matches your primary game. If you play 8-ball exclusively, you need 15 object balls plus a cue ball. If you want to try 9-ball occasionally, you can use a 16-ball set (just ignore the 8-ball and use balls 1–9 with the cue ball). But snooker requires its own 22-ball set. You cannot mix snooker and pool balls.
Which Set to Buy?
If you own a home table, commit to one primary game. For 90% of players, that’s 8-ball or 9-ball. Buy a quality 16-ball set in that case.
The Aramith Pure Phenolic Pool Balls are the benchmark. They cost more upfront but last a lifetime with care. Cheaper polyester sets need replacing every 2–5 years depending on use.
If you’re a competitive player, phenolic balls are non-negotiable. If you’re casual, a mid-range polyester set works. Just understand the trade-off—cheaper balls wear faster and play less consistently.
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