Square dining tables generally seat 4. For rectangular dining tables: 62-inch length seats up to 6; 82-inch length seats 8; 112-inch length seats 10. For round dining tables: 36-inch diameter seats 2; 48-inch diameter seats 4; 60-inch diameter seats 6. If you will need a smaller table for most of the year and a bigger one just for parties or at holiday time, consider getting an extendable table, so you can add and take out a leaf as needed.