This is the first time I designed formwork, and I got my hands on a text that explained the process thoroughly. I designed my wall and ordered the lumber but the crew that will be building the wall have not seen plans laid out in this fashion so now I figure I might have to order more lumber for stiff backs, no big deal just an admission of an error my part. However, reading through the text I believe I set it up one of the examples so now I am curious if this lay out would work as designed. Here is the issue: I need stiffbacks on 12" centers and I laid them out and got a quantity that the form boards would join together on the same 2x4 stiffback, like drywall. The crew says they always, limited experience but still after raising the concern I tend to agree, have built forms with a 2x4 stiff back at the end of each panel and then screw those together where your formboards come together. That gives you a full 1.5" of 2x4 for the formboard to bear against and 3/4" of edge distance for your screw vs 3/4" for the panel edge to push against and 3/8" edge distance. Anywall builders or designers care to inform me. Thanks!
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