Can I quarantine more than one snake in a rack?

I am planning to go to a show in about a week and more than likely will purchase new snakes.

Can I house/quarantine All of them in the same rack?

You can house all new snakes together as long as they are separate and not close to you current collection. If there are any other snakes in the quarantine rack and you add more the quarantine clock will reset.

I'm sure it's pretty obvious, but just in case someone pops in and doesn't quite understand.

Also going to add on...
If one of these new animals does seem to become ill, you would want to reset the quarantine clock on all of them. Don't count the days and move the ones that still seem healthy out to where they may become ill later and infect your healthy collection.
If this DOES become the case, I would also consider moving the ill snake to another habitat/sick cage/area of the household for treatment so as not to actually infect the others in the rack.

At least this is how I've always run and have thankfully never had issues with it.