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Divisible rooms & airwalls
A divisible ballroom isn't eight floor plans — it's one room with airwalls. EventDiagram models it that way, which is why you draw it once and never maintain stale variants again.
How the model works
A space is the full room with its true dimensions. Its sections are the airwall panels — Salon A, B, C… — each with its size, in order along the room's split direction. That's the entire setup: from those few numbers, every combination (A alone, AB, BCD, the full ABCDEF) derives automatically with the correct dimensions, square footage, and capacities.
Diagramming a combination
When you create a diagram in a divisible space, pick which sections are in play — the section chips at the top of the editor toggle them. The canvas resizes to the active combination, the airwall lines render where the walls actually stand, and the tally panel reports the active area's square footage. Change your mind mid-plan? Toggle a section; your placed items stay put.
Why this matters
In tools that store each combination as its own floor plan, a room change means updating eight files — and the one you forget is the one the client books. Here the room is defined once, so a dimension fix or a new section size propagates to every combination instantly. Venue directory plans come with their airwall data already verified.
Setting up your own venue
Venues → add your property → add each space with width, depth, and ceiling → add its sections in order with their sizes. On Venue plans we do this for you at onboarding from your existing floor-plan PDFs, verified to scale.