The table is not the problem. The chairs are, and the person who has to get out of one while the hand is still going.
Enter the room and it will tell you what fits. The rule it applies is 90 cm of clear floor behind every seat — enough for a chair to push back and a person to leave without the table moving.
A dining chair is about 45 cm deep. Pushed back far enough for an adult to stand up, it needs roughly double that. Less than 90 cm behind a seat and the person in it cannot leave without everyone else shuffling in, which in a five-hour game happens more often than you would think.
If the room is tight, a folding top on an existing dining table gives the same playing surface and none of the clearance problem, because it leaves when the game does. It is also a fifth of the price.
A 2.8 m oval does not come apart. Check the route from the front door to the room before ordering one, including the turn at the top of the stairs.
The table footprint plus about 90 cm on every side, so a 244 cm table wants a room at least 424 cm long.
An oval around 84 inches, roughly 213 cm long, seats eight comfortably.
Yes, and in a small room it is usually the better answer — same surface, no permanent footprint.