Specifically, mounting one in the ceiling of my garage for use with a trolley winch I picked up a while back.
I'd only use this for the occasional engine pull/install and I only work on 4-cylinders.
So lets say I pick up a 6 or 8-foot chunk of I-beam, how would one go about hanging it on the drywalled ceiling?
What's above the drywall?
Standard wooden runners on 16" centers, I'll have to check if they are 2x6 or 2x8.
Unfortunately, I believe the proposed path of the beam would be perpendicular to the runners.
Let me stick my head in the access hole and reacquaint myself.
I'd go across the whole ceiling and build 2x4 based supports under each end. A quick Google search should be able to turn up how many 2x4s you need on each end for a given weight rating and span.
You might consider a gantry.
What the other said. Drywall isn't what you're mounting to. How's the structure underneath?
Stefan wrote: Standard wooden runners on 16" centers, I'll have to check if they are 2x6 or 2x8. Unfortunately, I believe the proposed path of the beam would be perpendicular to the runners.
You want the beam to be perpendicular to the joists so that you distribute the load across as many of them as possible.
That being said, I don't think you really want to hang the beam from the joists. While you're buying steel, pick up a couple 3" lally columns, which have base and top plates already included, and are adjustable in height. Set the beam up tight to the drywall ceiling with a lally column at each end, plumb and square it up, and brace it with a couple deadmen. Then locate your joists, mark them, and drill a hole from the bottom side of the top flange. Install 1/2" lag bolts into the 2xs above, to brace the beam laterally. I would say alternating sides every other joist should do it.
This way the actual load is carried to the floor slab by the lallies, but the whole thing is stabilized by the diaphragm of the ceiling structure.
RossD wrote: You might consider a gantry.
Bingo! was ready to post the same.
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