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Bumper Pool Table Dimensions

A bumper pool table is small — a rectangle about 54 by 30 inches with 48 by 24 inches of cloth, or an octagon 48 to 54 inches across — with two pockets, twelve posts and ten 2⅛-inch balls. There is no governing body and no regulation size, so this page measures the tables people actually own, draws the post layout, and works out the room each shape needs with standard 48-inch cues and the short 42-inch ones.

Measured · rectangle, octagon, room

Seven sheets: both shapes, the sizes, the room, the rules and a score sheet.

The two drawings and the size chart answer the buying and building questions; the room plan settles whether it fits; the rules card and score sheet run the game.

Annotated rectangular bumper pool table in top view — 54 by 30 inch cabinet, 48 by 24 inch cloth, a pocket in each end rail, the cross of eight posts and two guard posts per pocket, ball cups and the marked-ball spots
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Rectangle — 54 × 30 in

The common home table measured: cabinet, cloth, the pocket in each end rail, the cross of eight posts on 4-in centres, the guard posts 4½ in out, the cups and the marked-ball spots.
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Annotated octagon bumper pool table in top view — 48 inches across the flats, about 42 inches of cloth, pockets in opposite flats and the twelve-post layout
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Octagon — 48 in Across

The stand-alone octagon at 48 in across the flats with the 3-in-1 54-in size noted: cloth, corner-to-corner, pockets in opposite flats and the same post layout.
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Bumper pool table size chart — two rectangles and two octagons with overall size, cloth and the room each needs with 48 and 42 inch cues, drawn to scale
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Size Chart — Rectangle and Octagon

The four sizes people own — 54 × 30 and larger rectangles, 48 and 54 in octagons — with the cloth and the room each needs, the cloths drawn to scale.
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Room plan for a bumper pool table — 12 by 10 feet with 48 inch cues and 11 by 9 feet with 42 inch cues drawn around a 54 by 30 inch table
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Room Size — 48 and 42 in Cues

The two-cue-lengths rule drawn: 12 × 10 ft with standard 48-in cues, 11 × 9 ft with 42-in cues, and the octagon figures in the notes.
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Printable one-page bumper pool rules card — setup, the break, play, penalties and winning
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Rules Card — One Page

Setup, the simultaneous break, order of play, every penalty and how you win, on one sheet to pin beside the table.
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Bumper pool score sheet — sixteen games with circles for the balls left, winner and penalty columns, and a series tally
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Score Sheet — A Session

Sixteen games to a page with circles for the loser's balls still up, a winner column, room for penalties and the series tally.
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Blank rectangular bumper pool table diagram in top view with pockets and posts, no text
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Blank Table — Build Custom

The table with no numbers, for a sign or a challenge board. Build Custom adds your name and logo.

Bumper pool table numbers

Typical of current Valley-Dynamo, Hathaway and Berner tables and the vintage coin-op tables they copy. No table is required to match them — measure yours.

MeasurementValue
Rectangle, overallAbout 54 × 30 in (the common new table); vintage coin-op and some slate tables about 58 × 34 in
Rectangle, clothAbout 48 × 24 in inside the rails; 52 × 28 in on the larger tables
Octagon48 in across the flats stand-alone (about 52 in corner to corner); 54 in on 3-in-1 poker and dining tables; cloth 42–46 in across
Height30–32 in from the floor to the cloth, the same as a pool table
PocketsTwo, one in the middle of each end rail (or of opposite flats on an octagon), about 3¼ in across
PostsTwelve on most tables: eight in a cross at the centre, spaced about 4 in with the middle open, and two guarding each pocket about 4½ in out and 6 in apart. Some tables have sixteen
BallsTen: five red and five white, 2⅛ in (54 mm), one of each colour marked with a spot
Cues48 in is standard; 42-in cues for tight rooms; a full 57-in pool cue is too long to use near the rails
RoomCloth plus two cue lengths each way: 12 × 10 ft (48-in cues) or 11 × 9 ft (42-in) for a rectangle; about 11½ ft or 10½ ft square for an octagon

Bumper pool table sizes and the room each needs

Room is the cloth plus two cue lengths in each direction, worked for the standard 48-in cue and the 42-in short cue.

TableOverallClothRoom, 48-in cuesRoom, 42-in cuesNotes
Rectangle, 54 x 30 in54 x 30 in48 × 24 in12 ft × 10 ft11 ft × 9 ftMost new home tables and the common 54-in listing; two guard posts per pocket, cross of eight
Rectangle, large (vintage / slate)About 58 x 34 in52 × 28 in12 ft 4 in × 10 ft 4 in11 ft 4 in × 9 ft 4 inCoin-op Valley and Irving Kaye tables and some slate models; measure yours
Octagon, 48 in48 in across the flats42 in across the flats11 ft 6 in × 11 ft 6 in10 ft 6 in × 10 ft 6 inStand-alone octagons; about 52 in corner to corner
Octagon, 54 in (3-in-1)54 in across the flats46 in across the flats11 ft 10 in × 11 ft 10 in10 ft 10 in × 10 ft 10 inPoker / dining / bumper pool combos; the flip top adds 1-2 in all round

Why the posts are where they are

Everything about the layout exists to stop the straight shot. The two guard posts in front of each pocket sit about 4½ inches out from the end rail and 6 inches apart, so a ball rolled straight down the table from the far end hits a post; the only way in is off a cushion or through the gap at an angle. The eight posts in the middle make a cross with the centre open, which gives you a lane straight through the table in either direction — if you can hit it — and four corners to bank around when you cannot. That is the whole game: every shot is a bank or a thread, and the shorter the table the more the banks matter, which is why the octagon plays faster than the rectangle.

The numbers are typical rather than fixed. Valley, Dynamo, Hathaway and Berner all use a 48 × 24 cloth and a 4-inch cross on their rectangles, and the vintage coin-op tables people restore run a few inches bigger; octagons vary more because the cloth is whatever is left after the poker rail. If you are drilling a table of your own, lay the posts out from the sheet and roll a ball through the cross and past the guards before you glue anything down.

Now play it
Bumper pool rules — the break, the marked ball and the penalties
The rules printed on the table against the house versions, with a one-page card to print.
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Thinking about a full-size table instead?
Pool table dimensions and room needed
7, 8 and 9 ft footprints and the same two-cue-lengths formula, to compare against the bumper table’s 12 × 10 ft.
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What size is a bumper pool table?
Most rectangular tables are about 54 inches long by 30 inches wide overall, with roughly 48 × 24 inches of cloth inside the rails and the playing surface 30 to 32 inches off the floor. Octagon tables are 48 inches across the flats as stand-alone tables and 54 inches on the poker-and-dining combos, with about 42 to 46 inches of cloth. There is no governing body and no regulation size — vintage Valley and Irving Kaye coin-op tables run a few inches larger than new ones — so measure the cloth on the table you have before buying felt, a cover or a rack to fit.
How much room do you need for a bumper pool table?
The same rule as a pool table: the cloth plus two cue lengths in each direction, so you can draw the cue back on any shot. With standard 48-inch bumper pool cues a 48 × 24 in cloth needs 12 × 10 feet; with 42-inch cues, 11 × 9 feet. An octagon with a 42-inch cloth needs about 11½ feet each way, or 10½ with short cues. The play happens from the ends toward the far pocket, so if you have to squeeze, squeeze the sides.
What is the difference between an octagon and a rectangular bumper pool table?
The rectangle is the original coin-op layout: 54 × 30 inches, pockets in the short ends, longer banks along the side cushions. The octagon is shorter pocket to pocket, has eight cushions instead of four and so more bank angles, and is the shape that takes a poker or dining top — which is why almost every 3-in-1 table is an octagon. Both have two pockets, the same cross of posts, the same ten balls and the same rules; the octagon plays a little faster and the rectangle rewards the long bank.
How many bumpers are on a bumper pool table, and where do they go?
Twelve on most tables. Eight form a cross in the middle — two posts out from the centre on each of the four sides, with the centre itself left open so a ball can pass through — and two more stand guard in front of each pocket, spaced so a ball can get between them only from an angle. Some tables have sixteen posts, adding four more around the cross or beside the pockets. Spacing is about 4 inches in the cross and 6 inches between the guards, but makers differ by an inch or so; the sheets here show a typical layout.
What size are bumper pool balls, and how many are there?
Ten balls, 2⅛ inches (54 mm) across — a little smaller than the 2¼-inch pool ball — five red and five white, with one ball of each colour marked with a spot. The marked ball is the one each player must pocket first. Replacement sets are sold in 2⅛; older sets and some toy tables use 2-inch balls, which play loosely against the guard posts.
How long is a bumper pool cue?
Forty-eight inches is the standard, and 42-inch cues are sold for tight rooms; both are shorter and lighter than the 57- to 58-inch pool cue. On a 30-inch-wide table a full-length cue is constantly against a wall or a post, and it makes the short, soft shots harder. The room chart on the size sheet is worked for both lengths.
Is there a regulation bumper pool table?
No. Bumper pool never had a governing body, so 'regulation' in a listing just means a full-size table rather than a toy one — usually the 54 × 30 in rectangle or the 48-inch octagon, with 2⅛-inch balls and twelve posts. Slate tables exist and play truer than MDF ones, but the size is no different.
What size is a 3-in-1 bumper pool table?
Almost always a 54-inch octagon: a poker top with chip trays and cup holders, a dining top over that, and the bumper pool cloth underneath, about 46 inches across the flats. Plan the room for the bumper pool game rather than the dining table — around 11½ feet each way with 48-inch cues — because that is the one that needs swing room. A few 3-in-1 tables are rectangles built on the 54 × 30 in footprint.
Can I build a bumper pool table?
Yes — it is the simplest cue table to make: a 48 × 24 in playfield of ¾-in MDF or plywood (slate if you want it to play like a bar table) framed by 3-in rails with rubber cushion, two pocket cups at the ends, and twelve posts drilled on the layout in the dimensions sheet. Buy the posts, the cushion rubber, the cloth and the ball set as a kit; the cloth and the cushion are the parts that decide how it plays.

Sizes are typical of current and vintage tables — bumper pool has no governing body or regulation size; the room formula is the cue-table standard. Updated through September 2026.