I've got a wide mess of I-beam, HVAC trunk, and misc pipes and wires that runs across the width of my room. The ceiling will be IB-1 clips, channel, and DD/GG. I need to figure out how to box in this obstruction. I need to keep the finished soffit decoupled, and I'm trying to stick with as low a profile as possible to minimize the impact to headroom and projector sight lines.
The duct is the lowest point below the joists at ~10". All told, the obstructions are roughly 36" wide.
Here were a few ideas that I tried to get on paper (profile views of the proposed soffit):
- I assume that option A is too far to span with no mid-span supports.
- Option B, I thought about hanging an intermediate piece of channel from IB-1s that hang from the joists on threaded rod
- Option C, I could use channel across the width of the soffit, although it would possibly hang slightly lower than other options
Thoughts, suggestions, or any ideas that I am completely missing?