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Your measurements

Clearance is what matters. A table fits in a room long before the game does.

Table
Nominal size refers to the playing surface. The cabinet is larger, and that is what the room has to clear.
Cue and clearance
Add a little if the room has furniture, a bar, or you want to walk behind a player mid-shot.

Your result

Sample values

17′ 4″

Room length, minimum

14′ 0″

Room width, minimum

58

Clearance each side, in

92 × 52

Table cabinet, in

8 ft table with a 58 in cue and no extra clearance.

Cabinet sizes used

Typical outside cabinet dimensions by nominal table size
Table Cabinet, in
7 ft — bar box 82 × 46
8 ft — home standard 92 × 52
8.5 ft — pro eight 96 × 54
9 ft — tournament 100 × 56

How to use this calculator

Pick your table size and the longest cue that will be used in the room. The calculator adds a full cue length to every side of the cabinet, which is the standard way to size a billiards room.

Add extra clearance if the room has anything against the walls. A bar stool, a radiator or a sofa back does not stop the table fitting, but it does stop a player drawing back on a rail shot, which is the whole point of the exercise.

Formula

Room length = Cabinet length + 2 × (Cue + Extra)

Room width = Cabinet width + 2 × (Cue + Extra)

Cabinet
the outside of the table, larger than the nominal playing size
2 ×
clearance on both sides — a shot can come from either end

A full cue length per side is the standard allowance. It assumes a normal stroke without a shortened bridge.

Worked example

An 8 ft table with a 58 in cue and no extra clearance.

  1. Cabinet for an 8 ft table: 92 × 52 in
  2. Clearance each side: 58 in
  3. Length: 92 + (2 × 58) = 208 in
  4. Width: 52 + (2 × 58) = 168 in
  5. 208 in = 17 ft 4 in, 168 in = 14 ft 0 in

About 17 ft 4 in by 14 ft 0 in

Understanding your results

The number that surprises people is how much room a table needs relative to its size. An eight foot table is under eight feet of playing surface but wants a room over seventeen feet long, because the cue has to travel on both sides and the shot can come from anywhere.

If the room falls short, a shorter cue is a genuine fix rather than a compromise. Dropping from a 58 in cue to a 52 in one takes a foot off both dimensions, and most players adapt within a session. Rooms are frequently short in one direction only, so check both figures before ruling a table out.

Questions

About this calculator

Ask something else

A full cue length on every side, so 58 inches for a standard cue. That is the allowance that lets a player stroke normally with the cue ball against a rail, which is the tightest shot on the table and the one that decides whether the room works.

Yes, with a shorter cue. Most rooms that fall a foot short are perfectly playable with 52 inch cues kept on the wall for the tight side. Below about 48 inches of clearance the game stops being enjoyable rather than just being awkward.

The nominal size — 7 ft, 8 ft — refers to the playing surface between the cushions. The cabinet is roughly a foot longer and wider, and that is what has to be cleared, which is why this calculator works from cabinet dimensions.

Yes, though it is rarely the constraint. Around 8 ft 6 in clear is comfortable for jump and masse shots and for a light fixture hanging over the table. Under 8 ft the light either sits in your eyeline or gets clipped by a raised cue.

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