What is the best way to know the size of the Billiard table without using any measuring tool?

The 7, 8, and 9-foot names do not refer to either the playing surface or entire size of the table. They are just convenient to use as names. As mentioned previously, a 7-ft table has a 38 x 76 in playing area, 8-ft is 44 x 88 in, and 9-ft is 50 x 100 in. The width of the rails and cushions can be between 4 - 7.5 inches, so the exterior dimensions can be significantly different between tables.

Perhaps the easiest way to measure a table is to lay a standard cue stick along the length of the table with the butt frozen to one of the rails. A standard cue stick is 58 inches, so for a 7-ft table, the tip is at the second diamond on the opposite side of the table. For an 8-ft table, it will be between the 2nd and 3rd diamonds (nearest the side pocket) and for a 9-ft table, it will be between the 3rd diamond and side pocket. It gets a little trickier with oversized 8-ft tables, but would be just short of the 3rd diamond.

Regarding the Aramith Fusion table, while it's advertised as being available in a 7-ft size only, the one used for Trick Shot Magic and the World Cup of Trick Shots on ESPN last year were custom made 9-ft models.

You need to measure the table to know what size it is if you aren't familiar enough with them to just look at it. Here is an excerptt from literature we use at International Billiards:

The term “regulation” is a most misunderstood one. “Regulation” has shrunk over the years from 6 x 12 to 5 x 10 to 4-1/2 x 9. Most people now refer to the 4 x 8 (44” x 88” playfield) as “regulation”. If the term is to have any validity at all today, it must conform to the Billiard Congress of America’s specifications, i.e. length must be twice the width and certain height and pocket opening dimensions must be met. This ensures that the mathematical equations remain the same, no matter what the size of the table. Increasing the distance a ball must travel to the pocket increases the challenge.

“Bar Tables” are usually 3-1/2 x 7. Because the pocket openings of most coin-operated tables are slightly larger than regulation, a home-style 3-1/2 x 7 generally offers a greater challenge than the bar tables. The most popular home table size is the 4 x 8 (44 x 88 playfield). Pool halls usually contain either 4 x 8 oversize (46 x 92) or 4-1/2 x 9 (50 x 100), with an occasional 5 x 10 (56 x 112), generally in a snooker configuration. Snooker tables have a much smaller pocket opening than regular six-pocket tables, and snooker is generally thought of as being a more difficult game. Billiard tables without pockets are called carom tables. Although we have included it on our chart, very few 6 x 12 (63 x 126) tables are sold in the United States; they are found in abundance as close as Canada and Mexico.

* While BCA tournaments are usually played on the larger 9' tables, local APA leagues are played on the 7' Coin Operated versions, as are the Nationals.

** ESPN will usually have a 9' table, although it will vary depending on what table manufacturer is sponsoring the tournament.

***Recent trick shot programs have been played on the Armand Fusion table, which is a 7' table with very wide rails. Its playfield is 37.5 x 90.

There are several ways to measure your table. If the table is disassembled you can measure the slate or rail sites. If it's assembled, you can measure the playfield or rail sites. The playfield is the area of the table that the ball rolls on. Measure from the tip of one bumper to the tip of the opposite bumper. Do not include the area of the rail rubber. When measuring the distance between rail sites, make sure that you measure from the exact location on both sites.

A 7' home table has a 39" x 78" playfield, a 46" x 85" slate and is 9.75" site to site.

An 8' is 44 x 88, 51 x 95 and 11"

An 8.5' (aka 8'OS) is 46 x 92, 53 x 9, and 11.5.

A 9' is 50 x 100, 57 x 107 and 12.5.

This Site Might Help You.

RE:

What is the best way to know the size of the Billiard table without using any measuring tool?

how can I know the size of the Billiard table (Pool and Snooker) without using any measuring tool?

additional question...there is 7 feet table, 8 feet and 9 feet...Is that the measurement of the entire size of the table or just the playing surface of the table? I watch Pool games in youtube...

If you want to measure the table and don't have a ruler, you can use a virtual ruler. I recommend http://getruler.com/ which turns your tablet or cellphone into a ruler. Good luck.