Please review.
For the lab space I had:
15'-0" ceiling
8" light clearance
20" duct clearance
32" joist depth
2' parapet
First Floor:
8'-4" ceiling
8" light clearance
24" duct clearance
24" joist depth
Second Floor:
9'-0" ceiling
8" light clearance
20" duct clearance
24" joist depth
2' parapet