I think I'm going to call the steel yard and see about a 28'x2"x10"x1/4" rectangular stock piece or a small I-Beam. I'm sure a bunch of large LVL's or smaller beams running parallel with the back wall would work great, but I just don't think it needs to be that complicated for how little the weight will be up there. It's size depends on how often it is supported and attention needs to be given to how it is fastened.īCZYNGAN, thanks so much for such a complete answer, but CSP is correct. Check weights as well.Īlso, the ledger needs designing that supports the other end of the joists. I would compare steel if 16" was too deep and compare costs for the LVL plus flitch plate(s) solution, but that would need engineering. From this chart we can pick a combination for L/240 which will give a deflection of 1.4".Ī beam made up of 3 of the 1 3/4x16" deep LVL's will support the load.Ģ8' is a pretty long span with that load. Let's use a 1.9E LVL which is readily available. The LVL has a contributing area of 5SF/LF times 60# equals 300#/LF of uniform load. Ledger and double LVL take up 5", so this is adequate. Assuming no finished ceiling underneath we can use L/240. None of these options are the correct answer until you know the load you intend to support.Īssume a live load of 50#/SF and a dead load of 10#/SF.įirst, let us design the joists. I'm thinking it will be used for my staircase going to the second floor and hardware storage I really don't want some monster beam that's excessive since this will have 1,000lbs or less on this small area. Make sense? Does anyone have experience with this setup? I don't need to put a trolley on it, and plan to have 8' clearance below it, and around 7' above which gives me a foot to play with for beam height etc. I figure a steel beam across the front of this with a 2"x8" carriage bolted to it would allow my to nail my floor joists to that. I'm thinking either a long LVL or steel beam to span the 28' width, as I believe the LVL required would be very tall. My new garage is 28' wide with 16' ceilings and I'm putting a very short second floor in the back (28' wide by 10' long), mainly for easier access to my attic, and I'd like to do this with no vertical supports. Hi all, I have many questions posted in a different thread so I think my most important question is getting overlooked or not getting the proper attention.
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