Garage doors will be installed in the next week or so and the concrete floor isn't in yet. Is there anything to be concerned about other than getting top of floor height bang on? Please let me know. Thanks!

You should have no problems with the garage doors, assuming you do get the correct height.
Hanging the doors before the floor is poured is not that uncommon for us, especially for detached garages, commerical, storage type structures.

Thanks Wes,
What tolerances are acceptable for height, if any?

Just be sure it is not set too high; otherwise they can be adjusted within a couple of inches after the floor is poured. It is critical that the bottom weatherstripping be tight against the floor; the outside weatherstripping should go on after the floor is in place.

Thanks Bob,
That is the type of info/concerns I need/had.
Cheers!