Originally Posted by tony.g
It is not adviseable to bridge across the bottom flanges, as this might affect the bond between the OSB web and the flange.
Better if you could fix some timber to the sides of the web, and fix a bridging piece across those.
I searched on the Weyhauser web site for "TJI hanging" and came up with instructions for hanging a sprinkler system. It has to be able to hold the pipe (230 pounds) and the weight of a falling installer grabbing the pipe (250 pounds). They recommend installing two 5/8" lag bolts from the bottom (never from the side!) and say that will have handle 500 pounds.
That is 10x what I would have guessed, but I guess it has to be able to hold a sprinkler system, doesn't it.
So I guess my 60 pound airfilter will be a piece of cake. Which is good because I also want to hang dust collection pipes, but they aren't all that heavy either.