Insights
How Many Meeting Rooms
Does Your Office Need?
Rule of thumb: one meeting room per 10–20 employees, adjusted for hybrid schedules and call volume. How to calculate yours, with worked examples.
Short answer: plan for one meeting room per 10–20 employees — closer to 1:10 for sales- and client-heavy teams, closer to 1:20 for heads-down engineering teams. Then add one small call room per 8–10 people if your office is open-plan and hybrid, because one-person video calls now consume more room-hours than actual meetings in most offices.
This is the question every office move and every Monday-morning room fight comes back to. Here's how to get a real number instead of a guess.
The baseline ratios
| Team type | Rooms per employees | Why |
|---|---|---|
| Sales / client services | 1 : 8–10 | Constant external calls and demos |
| Mixed / general office | 1 : 10–15 | The standard planning ratio |
| Engineering / product | 1 : 15–20 | Fewer, longer, scheduled meetings |
| Hybrid office (any type) | Subtract average daily attendance first | Rooms serve people present, not headcount |
Hybrid adjustment: if 100 employees average 60% attendance, plan rooms for 60 people, not 100 — but expect Tuesday–Thursday peaks, when attendance hits 80%+. Plan for the peak, not the average, or you've planned the fights into your calendar.
The call-room correction (the one everyone gets wrong)
The biggest post-2020 shift: the 6-person room booked by one person on a video call. It's the most common booking pattern in open-plan offices and the most wasteful. The fix isn't more big rooms — it's 1–2 person phone booths or focus rooms, roughly one per 8–10 open-plan employees. They're cheaper per unit and absorb the bookings that were strangling your real meeting rooms.
Worked example: 40-person hybrid agency
- Average attendance 65% → plan for ~26 people, Tue–Thu peak ~32
- Client-heavy → ratio 1:10 → 3–4 meeting rooms
- Open plan → 3–4 call booths
- One room sized 8+ for all-hands and pitches
That's a very different shopping list than "40 people = 4 big rooms," which is how most offices end up with empty boardrooms and queues for small rooms.
How to check your current ratio (free, this week)
You don't need sensors. Your calendar already knows:
- Export 4 weeks of bookings for each room
- Calculate booked hours ÷ working hours per room
- Above 70% booked = genuine shortage. Below 40% = a sizing or behaviour problem, not a quantity problem
- Count attendees vs room capacity — if your 8-seaters average 2.5 people, you need smaller rooms, not more rooms
(Displays with at-the-door booking also kill the #1 false-scarcity source: rooms that look free but aren't bookable on the spot, so people block-book defensively. More in our ghost meetings post.)
FAQ
Is there an official standard? No ISO ratio exists; 1:10–1:20 reflects common space-planning practice. Your calendar data beats any rule of thumb.
Do bigger companies need proportionally fewer rooms? Slightly — meeting load doesn't scale linearly — but distributed floors mean people won't walk far, so distribution matters more than totals.
What utilization should I aim for? 50–70% of working hours. Higher means queueing; lower means wasted rent.
Planning an office move or fit-out? This is the post to drop in the planning channel before the architect locks the floor plan.