Here are some different layouts that my customers have done in the past. From using 3′ round, 5′ round and trestle tables in various sizes of our 3m party tent range.
3m x 8m frame with Four 3′ round tables seating 20 guests 
3m x 10m party tent with Three 5′ round tables seating 30 guests
3m x 12m party tent with Four 5′ round tables seating 40 
Simple chair layout in a 3m x 8m party tent
3m x 6m party tent with Three Rustic Trestle tables seating 18 
Double width Rustic trestle tables in a 3m x 8m seating 20
