Booking phone booths and focus pods: bookable or not

Three phone booths in a row along the wall, all glass, all occupied. Someone is standing in front of them with a laptop and a call starting in ninety seconds, doing the thing everyone does: making brief eye contact with each occupant in turn, trying to work out which one looks closest to finishing. One of them mouths "two minutes". The other two do not look up. The call starts in the stairwell.

Booths and focus pods have become standard office furniture, and almost nobody has decided how they are allocated. They are usually not in the calendar system, which is sometimes exactly right and sometimes the reason for the queue. This post covers the first-come-first-served versus bookable decision and when each wins, how many booths you actually need, the short-booking problem that calendar systems create, how to configure them properly if you do make them bookable, occupancy indication without booking, and the etiquette layer that does most of the work.

Why booths are usually not in the calendar

The honest reason is that nobody set them up, because they arrived as furniture. Someone ordered four pods from a furniture supplier, a delivery crew assembled them, and they went into the floor plan as objects rather than as resources. Meeting rooms come from an architect and end up in IT's inventory. Booths come from a catalogue and end up in facilities'.

But there is a better reason, and it is worth taking seriously: a ten minute call does not want a thirty minute booking flow. The whole value of a booth is that it is there when you need it, unplanned. If using one requires opening a calendar, finding the right resource, picking a duration, sending an invite and waiting for an accept, the friction exceeds the value and people will use the stairwell instead. Which they already do.

The actual decision: first-come or bookable

When first-come-first-served wins

Short, unplanned calls dominate. If most booth use is 5 to 15 minutes and unscheduled, booking adds cost and removes nothing.
You have enough booths. If someone can nearly always find a free one within a minute, allocation is a solved problem and formalising it makes things worse.
The booths are visible. Glass booths in an open area are self-managing, because availability is visible from your desk. You do not need a system to tell you what you can see.
The office is small. Under about 30 people, social norms handle it. Everyone knows everyone, and hogging a booth for two hours has a social cost.

When bookable wins

Predictable, recurring demand. A sales team with scheduled customer calls at fixed times has a genuine need to guarantee a booth at 14:00, and first-come does not provide that.
Booths are out of sight. If the pods are down a corridor or on another floor, walking there to check is expensive and people stop trying.
Sensitive calls. HR conversations, medical appointments, interviews. Nobody should have to hover in a corridor hoping a booth frees up before a difficult call.
You are short and rationing. If contention is real, a booking system at least makes the rationing visible and fair rather than rewarding whoever sits closest.
Accessibility. If someone needs a specific booth (the accessible one, the one with a hearing loop, the larger one), guaranteeing it matters more than convenience.

The pattern that works in most offices of 20 to 100 people is a split: keep the majority first-come, make one or two bookable. You get spontaneity where it matters and certainty where it matters, and you avoid the outcome where every booth is booked solid by defensive reservations.

How many booths

Furniture vendors publish planning ratios and they vary a lot, commonly somewhere between one solo booth per 6 people and one per 15, depending on how much of the workforce is on calls. Treat any of them as a starting hypothesis, not an answer, since they come from companies selling booths.

Two things matter more than the ratio:

Measure against peak attendance, not headcount. An 80 person company with a hybrid pattern might have 45 people in on a Wednesday and 15 on a Friday. Size for the Wednesday.
Measure call concurrency, not people. The number that matters is how many people are simultaneously on a call at your busiest hour. A sales-heavy team and an engineering-heavy team of the same size need very different numbers of booths.

Practical way to find out without buying anything: for one week, have someone note how many booths are occupied and how many people are visibly waiting, three times a day. Two hours of observation beats any ratio in a brochure.

Also mix the sizes. All-solo is a common mistake. A 2 person and a 4 person pod absorb the small meetings that currently consume your 10 person meeting room, which is often the cheapest way to fix meeting room contention.

The short booking problem

Calendar systems assume a meeting is 30 minutes. That assumption is baked into every default, every dropdown, every "quick add" in Outlook and Google Calendar. It is wrong for booths in both directions:

Too long. Someone needs 10 minutes, books 30 because that is the default, and the booth sits empty for 20. Repeat across four booths and you have manufactured a shortage.
Too short. Someone with a 45 minute customer call books 30 and gets bumped, or books 60 to be safe and wastes 15.

The fix is to make short bookings the path of least resistance. If your display or booking interface offers "15 min" as the first button and 30 as the second, most people will take the 15. If the only option is a calendar form defaulting to 30 minutes, you get 30 minute bookings.

Setting them up as resources properly

If you do make some booths bookable, do not create them as ordinary room mailboxes with default settings. Exchange Online has a workspace type designed almost exactly for this, and the constraints matter more here than for meeting rooms.

Connect-ExchangeOnline

# Create it, then mark it as a workspace with capacity 1
New-Mailbox -Room -Name "CPH 2 - Booth A" `
  -PrimarySmtpAddress booth-a@example.com

Set-Place -Identity booth-a@example.com `
  -Type Workspace `
  -Capacity 1 `
  -Building "HQ" -Floor 2 -City "Copenhagen"

# The constraints that make a booth behave like a booth
Set-CalendarProcessing -Identity booth-a@example.com `
  -AutomateProcessing AutoAccept `
  -AllowConflicts $false `
  -AllowRecurringMeetings $false `
  -MinimumDurationInMinutes 15 `
  -MaximumDurationInMinutes 60 `
  -BookingWindowInDays 7 `
  -EnforceCapacity $true `
  -DeleteSubject $true `
  -AddOrganizerToSubject $true

Why each of those:

-AllowRecurringMeetings $false is the most important line. A recurring booth booking is how one person quietly owns a booth every Tuesday at 10:00 forever. Turn it off and the whole class of problem disappears.
-MaximumDurationInMinutes 60 stops the four hour booking. Adjust to your reality, but there should be a cap.
-MinimumDurationInMinutes and -EnforceCapacity only apply to workspace mailboxes, which is one of the reasons to set the type to Workspace rather than leaving it as a room.
-BookingWindowInDays 7 stops people reserving a booth three weeks out, which is defensive hoarding and produces the empty-but-booked pattern.
-DeleteSubject $true matters more for booths than meeting rooms. Booth calls are disproportionately personal: doctor's appointments, calls with a lawyer, a job interview. Do not put those subjects on a screen.

In Google Workspace the equivalent is a calendar resource inside the right building and floor, with a resource category that separates booths from meeting rooms so they do not clutter Room Finder results for people looking for an actual meeting room.

Occupancy indication without booking

For the first-come booths, the useful thing is not booking. It is knowing, from where you are standing, which ones are free.

Options, roughly in order of cost:

Glass. A transparent booth in an open area needs nothing. You can see it. This is why the glass-walled booth won as a design.
A physical occupied slider. A mechanical red and green slider on the door, moved by hand. Costs almost nothing, and fails exactly as often as people forget to move it, which is often. Works better than you would expect for a solo booth where the occupant is visible anyway.
A door contact sensor driving a light. A magnetic reed switch and an LED. Cheap, no personal data, and tells you door open or closed, which for a one person booth is close enough to occupied or free. Fails when doors get propped open.
A presence sensor driving a light or a board. A PIR or radar sensor in the booth and a status indicator outside. More accurate, more expensive, and now you are in the sensor conversation including privacy and works councils.
A screen in the corridor showing booth states. Useful if the booths are out of sight of the working area. Only meaningful if it is fed by something that knows the true state.

Here is the honest constraint, and it applies to us as much as anyone: a calendar-driven display cannot show occupancy for a first-come booth. If there is no booking, there is nothing to read. Any product that renders room state from Google Workspace or Microsoft 365, including ours, will show a first-come booth as permanently free, because as far as the calendar is concerned it is. Occupancy for unbooked spaces needs a sensor, and reading calendars is not the same job as reading sensors.

So the decision chain is: if a booth is bookable, a calendar display works. If it is first-come, you need either glass, a slider, or a sensor.

The etiquette layer

Most booth problems are social and are solved socially, cheaply, in one paragraph pinned somewhere people read. A workable set:

Booths are for calls, not for a quiet afternoon. If you need two hours of focus, that is a desk problem or a focus room, not a phone booth.
A soft cap of 30 minutes on solo booths during core hours, whether or not it is enforced by software. Naming the number is most of the work.
Do not leave your laptop in there to hold it. An occupied-looking booth with nobody in it is the booth equivalent of a ghost booking.
Knocking is fine. Say so explicitly. Half the queue problem is people who feel they cannot signal that they are waiting.
Take your rubbish and your cable. Booths accumulate coffee cups faster than meeting rooms because nobody feels observed in one.
If you booked one and your call moved, cancel it. Same rule as meeting rooms, and equally ignored unless someone says it.

Put the rules on a small sign inside each booth where the occupant sees them, not in a document nobody opens. The audience for a booth rule is the person sitting in the booth.

The buy side of this decision

The disclosure, since this is our blog. Lobby is a meeting room display that syncs in real time with Google Workspace and Microsoft 365 room resources. If you make some of your booths bookable as workspace or room resources, they appear like any other space: on an e-ink panel at the booth (7.5-inch e-ink hardware, from USD 69 per room, bought once and owned, keyhole slot for single-screw mounting, 3 to 6 month battery), in a browser tab, or as a line on a room overview board so somebody can see from across the floor which booths are taken. The hardware comes direct from the manufacturer with no markup from us, and volume pricing applies: USD 69 each for 1 to 9 units and USD 62.99 at 10 or more, excluding taxes, duties and shipping.

The limitation, stated as plainly as possible: Lobby reads calendars and does not read sensors. A first-come booth with no bookings will display as free forever, correctly and uselessly. We do not sell an occupancy sensor, we do not integrate with one, and there is no configuration that changes this. For first-come booths, a glass wall or a door contact and a light will serve you better than anything we make.

The rest of the limits, for completeness: no desk booking or visitor management in the rooms product, no room or AV automation, no enterprise SSO or SCIM at scale, no MDM on the e-ink hardware, no on-premises Exchange without hybrid. The e-ink refresh is 15 minutes on the Free and Unlimited plans and 5 minutes on Pro Unlimited, which is worth knowing for a space where bookings are 15 minutes long.

On pricing: the Free plan covers up to 3 displays with no credit card and is free forever rather than a trial. Unlimited is USD 30 per month billed yearly (USD 50 per month month to month). Pro Unlimited is USD 60 per month billed yearly (USD 100 per month month to month). Paying yearly saves 40 percent, with no annual contract lock-in. Setup is under 10 minutes with no sales call.

TL;DR

Booths usually are not in the calendar because they arrived as furniture, and partly because a ten minute call should not need a booking flow.
Keep most booths first-come. Make one or two bookable for scheduled calls, sensitive conversations and accessibility needs.
Size against peak-day attendance and simultaneous call volume, not headcount. Vendor ratios (roughly 1 per 6 to 15 people) are a starting hypothesis. Two hours of observation beats a brochure.
Mix sizes. Adding a 2 person and a 4 person pod often relieves meeting room contention more cheaply than adding a meeting room.
Calendar defaults assume 30 minutes and that is wrong for booths. Make 15 minutes the first option.
If bookable, set them up as workspace mailboxes with recurrence off, a duration cap, a short booking window, capacity enforced and subjects stripped.
A calendar display cannot show occupancy for an unbooked booth. That needs glass, a slider or a sensor.
Most of the fix is a short etiquette note on a sign inside the booth, not software.

Sources

Set-CalendarProcessing, Microsoft Learn (MinimumDurationInMinutes and EnforceCapacity apply to workspace mailboxes only; AllowRecurringMeetings, MaximumDurationInMinutes, BookingWindowInDays).
Set-Place, Microsoft Learn (Type Workspace, Capacity, building and floor metadata).
Manage resource mailboxes in Exchange Online, Microsoft Learn.
Create buildings, features and Calendar resources, Google Workspace Admin Help (resource categories and metadata).
ISO 23351-1:2020, measurement of speech level reduction of furniture ensembles and enclosures (the standard to ask vendors about when comparing pod acoustics).
Framery FAQ (vendor source on pod acoustics and ISO 23351-1 ratings).
How many office pods do you need, SoundBox Store (vendor planning ratios, treat as a starting point).

Vendor ratios and specifications above are taken from each vendor's own published pages and were verified on 5 August 2026. Vendor guidance and pricing change. Confirm current specifications directly with the vendor.

Booking Phone Booths and Focus Pods (The Rooms Nobody Puts in the Calendar)