Breakout room planning
Breakout space is one of the most-underspecced elements at brief stage. The right count, size, and layout depends on session type and attendee distribution.
Key takeaways
- Breakout count depends on number of parallel tracks and how attendees split.
- Each breakout should hold 1.2x its peak expected attendance for comfort.
- Layout matters — theatre, classroom, U-shape, hollow square serve different session types.
- Specify breakout requirements precisely at brief stage.
Breakout space is where many event briefs go vague. "Plus several breakouts" doesn't tell hotels what you actually need. Specifying count, capacity, and layout precisely produces comparable quotes and prevents day-of-event problems.
How to size breakout count
Single-track events: No breakouts needed; all attendees in plenary.
Two-track events (parallel sessions): 2 breakouts plus optional flex space.
Three-to-five track events: 3-5 breakouts plus flex.
Larger conferences with multi-track: 6-15 breakouts depending on track structure.
How to size breakout capacity
Each breakout should hold 1.2x its expected peak attendance.
If you expect 60 attendees in your largest breakout track, the room should accommodate 75 with comfort margin.
Some sessions will be busier than others; the largest peak determines the room.
Breakout layouts
Theatre. Rows of chairs, no tables. Highest capacity in given square meterage. Best for content-delivery sessions where attendees won't take significant notes.
Classroom. Rows of tables and chairs. Lower capacity but supports note-taking. Best for training sessions.
U-shape. Tables arranged in U; chairs around outside. Best for facilitated discussions of 12-25 attendees.
Hollow square. Tables arranged as a square; chairs around outside. Best for board-style discussions of 10-20.
Roundtable. Round tables of 8-12 each. Best for group exercises, training, and networking-friendly content.
Cabaret. Round tables but only attendees on outer half facing front. Capacity between roundtable and theatre.
How to specify in the RFP
For each breakout, specify:
- Capacity (peak expected × 1.2)
- Layout (theatre / classroom / U-shape / hollow square / roundtable / cabaret)
- AV requirements (screen, microphones, presenter capability)
- Accessibility requirements
- Flex requirements (can the room change layout for different sessions?)
Common breakout planning mistakes
- Vague brief. "Some breakouts" produces non-comparable quotes.
- Underestimating peak attendance. When the most popular session overflows, attendees stand or leave.
- Ignoring AV per breakout. Each breakout needs basic AV (screen, mic) — specify per room.
- Not building flex. Breakouts that cannot change layout limit programming options.
Frequently asked questions
Can we use the same room for multiple session formats?
Sometimes yes if the room has flexible furniture. Verify at brief stage.
How do we handle session overflow?
Build flex space (additional capacity) into the venue. Or use multiple rooms for high-demand sessions.
Should breakouts have walls or be in shared open space?
Walls help acoustically and visually. Shared open space (with dividers) works for less content-intensive sessions.
What about virtual attendees in breakouts?
Hybrid breakouts are technically harder than hybrid plenary. Often virtual attendees stay in plenary while in-person split to breakouts.
Specify breakout requirements in your RFP
Set count, capacity, layouts, and AV per room at brief stage — get comparable quotes.
Get the Hotel RFP Template →