This really depends on the size and shape of the table, as well as the width of your chairs. It is prudent to leave at least 20cm between each chair for aesthetics and functionality. Don't forget about table leg placement as the design can help or hinder the number of chairs that will fit. Typically for round tables, a 100-120cm will fit 4 people around comfortably, 130-150cm will be able to accommodate 6 comfortably and possibly 8 at the upper end, all depending on how comfortable you are with your guests! For rectangular tables, 140-180cm you typically can fit 2 on the sides and one at each end, allowing for 6 diners. on 200-240cm you can fit 3 on each side and 1 at the end allowing for 8 diners. If in doubt do not hesitate to ask us. Extendable tables are a good solution allowing for space saving when there are less guests on an everyday basis, but accommodating more for special events.