To determine space requirements, you need to know:
How many people will be attending? And, What activities are planned – seated dinner, cocktails, games, dancing, ceremony etc.
Let’s do the math… don’t be scared! Generally, to determine the number of people that can fit in a space:
For seated dinner – divide the total square footage by 8 for oblong tables and 10 for round tables. This will give you the maximum occupancy. (Dividing by 10 and 12 respectively is a more comfortable). To look at it another way, you need about 10 – 12 sqft per table set up.
For classroom style seating (chairs on only one side of the table and no food service (besides snacks) – divide the total square footage by 8.
For spectator/theater style seating only – divide the total square footage by 6.
These general guidelines don’t take into consideration things like structural columns, uneven floors, kitchen access points, and other traffic flow situations. Neither does it consider other activities that may be taking place.