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Reply by lumbering_on

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Posted on Z Bar/French Cleat conundrum

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lumbering_on

578 posts in 1097 days


#1 posted 11-13-2018 05:01 AM

Maybe, I’m just looking at the wrong product, but from what you describe in your original post the 16” bar is only rated at 30lbs

http://www.zbarhanger.com/16lazbhahaha.html

However, the 48” bar is rated at 300lbs, as you describe.
http://www.zbarhanger.com/48lazbhahaha.html

This seems to make perfect sense, and you’d be surprised at how much some things can support. I have about 150lbs of lumber resting on three cantilever shelves with only 3 #8 screws per shelf. This may not seem like a lot, but each #8 screw could support the weight of the wood by itself.

However, if you’re worried, you could double up the cleats, but I’d contact the company first. If it’s anything like most things that support weight on a wall, it’s likely that the actual weight it can support is 2-3 times higher. Going back to the #8 screw, I calculated it’s ‘safe’ support at ~95lbs. However, this is at 40% of it’s max shear weight, and I doubt that this company would just give the weight the bar would hold before tearing off the wall.


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