The typical sized person needs about 30" width at any table. Using your geometry lessons from school, lets invent a rule you can always use for seating and table sizing. For rectangular and square tables, it should be easy enough. Measure the length of any side (in inches) and divide by 30. If you get a decimal, round down for comfort (round up if an emergency seat is needed). For example, a 6' long rectangular table is 72" in length. 72/30=2.4 (that's 72" divided by 30" per person = 2.4 persons). So, you can fit 2 on each side. I'd only squeeze in another soul if we're seating kids.
Round tables are a little trickier but not too hard to figure. Circumference (length around a circle) = Diameter (length across the middle of the circle) x Pi. Pi = 3.1416. If you use 3 instead of Pi, your table will just grow in size slightly. So, back to the 30" per person rule. Seating for 12 means you need 12x30=360 (that's 12 people x 30" per person = 360" circumference needed). Then you just divide by Pi (or 3 to keep it simple) to get the table size in diameter. 360"/3=120" diameter. 120"= 10'-0" You need a 10' diameter table.
Luckily, that is a common size. You'll have to purchase or rent tables by their commonly manufactured sizes... and, of course, if you call, they'll probably just tell you how many can sit at each size. Oh well, at least if you're OCD, you can now fine tune and confirm! : )
Eight Feet will give each person plenty of room
Depending on the people, you need to figure about 36 inches of space per person. So a table for 24 would need to have a perimeter of 72 feet! If the table is required to be round, then a diameter of 72/pi or 23 FEET is required. Nobody has a table that's 23 feet in diameter. King Arthur's mythical Round Table may have been that size, perhaps. If it existed, it was probably toroidal (doughnut-shaped, with a hole in the center) to allow servants to put food on the table.
The table would have to be at east ten feet in diameter.
Check the link below for the table and seating capacities http://www.weparty.com/guides/planningguide_tableseating.pdf http://www.stuartrental.com/party-rentals/7/table-rentals FROM BUYAGAN, LA TRINIDAD ARCHITECT
A custom made round table can be manufactured into any diameter (length across) that you would request. If you are looking for the standard of mass produced round dining tables, then they typically come in the following diameters: 36", 40", 42", 46" 48", 60", and 72". The website shop.com has a page of round tables in these diameters, and then some. Here is the direct link: http://www.shop.com/search/Diameter+of+round+Tables?
There are a few different standard sizes of round dining tables depending on how many people you're planning to seat. For sitting 4 to 6 people, a round dining table should be 44 to 54 inches in diameter. If you're look to seat more people, a table with a diameter of 54 to 72 inches seats up to 8.
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If the dining table diameter is 36" (900mm), a rug underneath this table should be sized so that it is large enough to be beyond the chair legs when a chair is in the pulled out position. This means it will not catch on the chair as the person seats themselves and pulls the chair in. A rug that extends at least 48" (1200mm) beyond each side of the table would be required. This gives a total diameter for the rug of at least 130" (3300mm).
The required diameter is 2 times the square root of ( width x thickness / pi )
Amazon has a great selection of home dining furniture including round dining tables. If that doesn't suit your needs, Big Lots always has a great selection of cheap, dining tables.
Somewhere around ten people.
form_title= Round Dining Tables form_header= Buy a round dining table for your home! What size dining table do you need? *= _ [50] Would you like a table expansion leaf?*= () Yes () No How many chairs do you want included?*= {1, 2, 3, 4, 5, 6, More than 6} What color do you want the table?*= _ [50]