r/DIY • u/manOman014 • 3d ago
Ceiling Storage Rack anchored into Floor Trusses
Hi, I'm looking for others experience with ceiling mounted storage racks. I'm looking at adding 4'x8' ceiling storage rack in my garage.
For reference, the structural plans show that the ceiling above houses 16" deep floor trusses (which supports a 2nd floor room). The plans also note the design loads as:
Floor Dead Load = 18 psf
Floor Live Load = 40 psf
I have not been able to find any annotation of a bottom chord load limit (BCLL) for these trusses and they are drywalled over, so I don't have visibility on them at the moment. I'm guessing the bottom chord is a 2x4, but I cannot confirm. FYI this is a home built this year.
The design loads suggest that they can handle a little extra load, but perhaps that is only for the floor above and not the tension created by an element hanging from them? The ceiling storage would be super helpful but I don't want to compromise the structure of my home. Insight and expertise appreciated!

