Layouts · drawn to scale
Theater seating layout for 400 people
Rows of chairs for 400 facing a stage, with center and side aisles — a to-scale theater-style plan.
The short answer
400 people in theater-style rows: 400 seats.
The layout needs about 4,700 sq ft of floor — roughly 11 sq ft per person for the seating, plus a stage — with 2.6 ft aisles.
Below it is drawn in a 90 × 65 ft room (5,850 sq ft); open it and set your own room's size.
The numbers
| People | 400 |
|---|---|
| Seats | 400 |
| Floor area needed | about 4,700 sq ft |
| Per guest (seating) | about 11 sq ft |
| Aisles | 2.6 ft |
| Also on the plan | A stage |
| Room in the drawing | 90 × 65 ft (5,850 sq ft) |
Frequently asked questions
How much space do 400 people need?
About 4,700 sq ft of floor in this style, including a stage.
What size room fits 400 people?
This layout needs about 4,700 sq ft of floor. The drawing uses a 90 × 65 ft room, which leaves space around it. Set your room's real size in the editor to see whether everything fits.
Can I change the layout?
Yes. It opens in the Floors.live editor: move or add tables, change table sizes, add a stage, bar or dance floor, import your guest list and seat people, and see the room in 3D. Your first edits need no account.
What does it cost?
Starting is free. To keep editing one event and export it without a watermark, unlock the event for $39 (3 events for $79) — no subscription.