The rule that matters is not the table diameter, it is how much table edge each guest gets. Work that out and the number follows.
Published 17 October 2026 · Sabo Furniture, Foshan
The rule that matters is not the table diameter, it is how much table edge each guest gets. Work that out and the number follows, whatever the shape of the table.
Allow 60 cm of table edge per guest for a served dinner, 66 cm if there is a full place setting with more than two glasses. Below 50 cm, guests are sitting shoulder to shoulder and the room reads as over-filled in photographs — which is what most venues are actually buying.
| Table diameter | Comfortable | Maximum | Edge per guest |
|---|---|---|---|
| 48 in / 122 cm | 6 | 8 | 64 cm / 48 cm |
| 60 in / 152 cm | 8 | 10 | 60 cm / 48 cm |
| 66 in / 168 cm | 8 | 10 | 66 cm / 53 cm |
| 72 in / 183 cm | 10 | 12 | 57 cm / 48 cm |
Perimeter = diameter × 3.14. Divide by 60 cm for a comfortable setting, by 50 cm for the maximum. The table above rounds to standard seating plans.
Catering teams plan to the maximum because it sells more covers. But at ten to a 60-inch table, the centrepiece has to shrink, the place settings overlap, and serving becomes a reach across three people. The photographs from that room will be used to sell the next event, and they will look crowded.
A Chiavari is a narrow chair — that is part of why it packs so densely — so it seats closer than an upholstered banquet chair with arms. If you are mixing chair types in one room, plan to the widest one, or the tight table will be the one people remember.
Once the table count is fixed, allow 90–120 cm between the table edge and the wall or the next table, for chair pull-out and service. A room that fits 20 tables on paper often fits 16 in practice, and the difference is always the chair zone.
120 guests, 60-inch rounds, and a venue that wants a dance floor. Eight per table gives 15 tables; ten per table gives 12 tables and a bigger floor — which is exactly the trade venues make, and why the "maximum" number keeps appearing in plans.
Chairs: 120 for the guests, plus a float of 10% for damage, doubles and the inevitable extra cousin — 132 chairs. At a 50-piece minimum per model that is three minimums, which is why most weddings of this size order one model rather than three finishes.
Floor: 15 rounds at 152 cm, each needing about 250 cm of footprint once chairs are pulled out, plus 120 cm service aisles. That is a bigger room than the table count suggests.
Eight for a served dinner, ten if the venue is pushing capacity. Eight allows 60–66 cm of table edge per guest; ten drops it to about 48 cm and guests start to sit shoulder to shoulder.
Ten comfortably, twelve at a squeeze. The same rule applies: measure the edge per guest, not the table diameter.
Slightly. A Chiavari is a compact chair and sits closer than an upholstered banquet chair with arms, which effectively needs a few more centimetres per setting.
Perimeter divided by 60 cm, minus the ends if nobody sits there. A 6-foot by 30-inch table seats six comfortably, eight at a push.
All buying guides — thirteen articles on sizing, pricing, importing and specifying.