That is the dining-guide rating, not a squeeze chart. Slim chairs help at 43.5 in. Arms need the 55 in if six people eat there every night.
Eight people at a round table is not a Luna. That is a 110 in rectangle, or a different maker.
Short answer
Four at 43.5 in. Six at 55 in with Bella, Isabell, Karin, Sella or Erik.
That is the dining-guide rating, not a squeeze chart. Slim chairs help at 43.5 in. Arms need the 55 in if six people eat there every night.
Eight people at a round table is not a Luna. That is a 110 in rectangle, or a different maker.
Square room, people walking around the table, or a household that hates a hierarchy of seats.
A 43.5 in Luna plus 35.5 in of floor on all sides needs about 114.2 in of room. Measure that before you fall for the 55 in.
Conversation is easier because nobody faces a corner. Serving dishes share the middle; there is no 'pass to the end'.
Six to ten people as the weekly count, a narrow room, or a wall along one long side.
Ann 160 x 35.5 in seats four (six with the ends) in a galley. A 55 in round in that galley will hit both walls.
30 in, same as Ann. Use the same 18.1 to 19.7 in seats. The dining table height page and the chair height page are the pair.
Crossed steel legs free the edge compared with four corner posts. Still check knee room at the feet.
Round for up to six people in a square room. Oval when more people need to fit in a longer room without corners. We make round, Luna at 43.5 or 55 in, and no oval.
An oval is a stretched circle: it seats more along its length and keeps the walkway free of sharp corners. A round table is the better table for talking, because everyone faces the middle and nobody sits at the end.
If you need eight, our honest answer is a rectangle: Ann at 110 in, or 94.5 in with a chair at each end. If you need six in a square room, Luna at 55 in.