There are a few ways to set a limit on the total number of bookings in your venue at one time (maximum capacity).
You may need to enforce a maximum capacity to...
ensure there are enough first-aid trained personnel on site
comply with the building's fire safety regulations
follow COVID-19 rules
Important note: one person per space
All of the options described below rely on the assumption that there is one person per booking (the booking holder). Include a note in the booking form to instruct your users that only one person is allowed per slot and to book multiple spaces for multiple people. You could also emphasize this point further by putting information in a mandatory custom field check-box.
Using Skedda spaces
Your max capacity is equal to the total number of bookable spaces in your venue
Create the spaces in your venue as you usually would and you're done; you don't need to do anything else! Since Skedda spaces only allow one booking at a time this means that once all of your spaces are booked, then you're at the max capacity, and there's nothing else to book!
Example: The apartment swimming pool is allowed to have a maximum of 3 people and the gym 2. Set up the 5 spaces in Skedda and include the note described above. Below is an example of what the bookings would look like. Sherry booked 2 pool slots for a guest and herself and Tony booked three spots to take his 2 children swimming.
Using space sharing
Automatically block off other spaces when one is booked with space sharing rules
This method works best if all of the spaces are shared by everyone. If a space belongs to certain person, such as a permanent desk, automatically blocking off that space just because someone booked another space isn't really ideal (most of the time).
This can also be good to space users apart physically, leaving a blank space in-between each booking.
Example: When Desk 1 is booked, Desk 2 and 3 are blocked off for the same exact time, and vice-versa. This enforces a 50% capacity and doesn't allow anyone to sit next to or across from each other directly. It's only possible to sit diagonal from someone. When setting up these rules, keep each space on the same side of the arrow symbol ⇄. Desk 1 and 4 are always on the left side of the arrow, 2 and 3 on the right.
This is how it is set up in the space sharing settings page:
This is how it will look in the schedule:
Using full day bookings and quotas
Limit all your users' time booked in a day such that a "max capacity" is enforced
If you're allowing only full-day bookings (through booking conditions), you can use our Quotas feature to limit the time booked in such a way as to limit the total amount of bookings in a day, which would be less than the number of selectable spaces.
Example: If you enforce only full day bookings (ex. 10 hours), and you limit your entire user base's time booked to a collective 20 hours per day, then once 2 bookings are in, no one else would be able to book for the day. This method works if you only stick to full-day bookings, for any given booking.
This is how it is set up in the Booking Conditions settings page:
and the Quotas settings page: