mabey about 2m (6.561 679 79 feet)
The ideal seat to table height for comfortable dining is typically around 18 inches for a standard dining chair. This allows for proper alignment of the body and arms while eating.
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.
It depends on the shape of the table. A square table about 6' on each side would easily seat 10, 5' would be possible but probably not comfortably. A round 8' diameter table would work. A banquet table 2.5 X 10 will seat 10 with 4 on each side and one on each end.
There really is no important seat at a round table, besides the way a seat at a round table is if the chair was big and important. Hope that answers your question, I didn't understand it completely but I thought I would try! :)
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.
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
The largest dining tables available are 70"x144" and can seat 12-16, depending on the size and spacing of your chairs. If you don't need quite such a big table, I recommend the the 'large dining table' by Tablemakers, which can seat up to ten - four on either side and one at each end.
36"
Round a table, in a park, in a cinema.
9'0" Diameter
5