Marquee Size Calculator — Right Dimensions for Your Event

For 100 seated guests with round tables, you need approximately 150 sqm of guest space. Add a dance floor (20 sqm) and catering area (10-15 sqm), and a 12m x 15m marquee works well. For a standing reception, a 9m x 9m marquee is sufficient.

Standard UK marquee widths are 6m (20ft), 9m (30ft), 12m (40ft), and 15m (50ft). Length can be extended in 3m bays. Most hire companies work in these widths because of standard frame and canvas sizes. The 9m width is the most popular for parties of 40-80 guests.

Allow 1.5 sqm per person for seated dining with round tables, 1.2 sqm for long trestle tables, and 0.75 sqm for a standing reception. These figures include space for chairs and movement between tables but not extras like dance floor or bar.

Yes, always add extra space beyond guest seating. A dance floor for 40% of guests needs about 0.5 sqm per dancer. A bar or buffet area needs 10-15 sqm. Entrance lobby or cloakroom areas add another 5-10 sqm. This calculator includes these extras.

You need flat, level ground. Grass is ideal for staking. Hard surfaces like tarmac or concrete require weighted feet instead of stakes. Check for underground cables and pipes before staking. The ground area needs to be larger than the marquee to allow for guy ropes and access.