To seat 10 people comfortably, use a 66- to 72-inch diameter circular table, a 60-inch square table, a 30-inch-by-96-inch rectangular table or 48-inch-by-96-inch rounded oblong table. The rounded oblong table is also called a double-D table, made with two D-shaped tables.
A 60-inch square table can fit eight to 12 people. However, for eight people this size table offers a lot of space. For 12 people, the same table will be tight. If there is not enough space for a 66-inch circular table, a 60-inch table will fit 10 people, but not necessarily comfortably. A double-D table will fit 12 people comfortably.