Tables come in 3 sizes:

Small (1x1) Thin (2x1) Large (2x2)





Table Slots

It seems reasonable that 1 colonist can use the small table (because otherwise the table would be useless).

The thin table is twice is large, so it should allow 2 colonists.

The large table is four times bigger, so it should allow 4 colonists.

Roughly drawn out, you would expect that a colonist could use any of the following locations (in blue):