Six chairs fit along each long side at 24 inches apiece, 12 seats; at 30 inches each, with a chair at each end, it seats 10. Plan on about 20 by 12 feet with 48 inches between the table edge and the walls, so chairs pull out and people can walk behind them.
The base is three panel sections, each 5 inches thick with squared corners and 24 inches wide, so it sits 12 inches in from each long edge and knees clear it. The end panels stand 18 inches in from each end of the top, so the seats at the head and foot keep their legroom. Each base panel is hollow with a swing door on one side, with a pull included, so you reach the plugs without crawling under the table; the two wire troughs between the panels carry the cords from one end to the other.
Pick one or two power grommets on this page and they are cut into the top before it ships, and where one sits over a base panel, the factory notches that panel for the cord drop at no extra charge. Cords drop from each grommet and run inside the base to the outlet. Side-panel finishes and up to three matching credenzas are picked on this page and built with the table.