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spencerin
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# Posted: 18 Nov 2025 10:03pm
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I've seen sheds and cabins built with this siding with horizontal blocking/studs between the vertical studs for what I thought was the purpose of having something solid for the metal siding screws to bite into. But, sometimes I see them built without the horizontal blocking/studs. If you're installing this type of metal siding, should you have this horizontal blocking/studs or not?
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Brettny
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# Posted: 19 Nov 2025 04:51am
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It wouldnt hurt. If you want a strong structure I would do full length nailers, also less cuts this way. If your in a wind prone area simpson sells a metal strap in a roll that can be used to stop racking. Plywood sheething would be superior bit excessive for something like a barn or shed.
I have a shed that the siding is also the wall studs. The siding is 2in thick sawmill slabs. It just houses a generator. But has been drug around the property to many locations.
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DRP
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# Posted: 19 Nov 2025 05:53am - Edited by: DRP
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If the sheets are standing vertical the building needs to be sheathed with 5/8 or better ply or osb, or framed with horizontal girts between more widely spaced posts, or blocking between studs, or strapping over and across studs.
When the sheets are screwed through the flats to the framing, with the appropriate pattern and spacing the steel braces the frame similarly to sheets of plywood, the industry calls this diaphragm/frame interaction. As ag buildings get larger there are brace bays with steel rods and turnbuckles forming an X to triangularize and brace the frame.
Here I would visit one of 2 local suppliers of the metal, they make it to order and for most jobs we are ordering just metal roofing or trim but they also design and supply all the materials for post frame structures. You get a properly engineered plan as part of the service of the sale.
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