Reply by bold1

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Posted on Butt joints for ceiling/floor joist

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364 posts in 3186 days

#1 posted 11-09-2014 11:50 PM

Let me see if I understand where you’re going. The header that is visible on the top left you wish to extend straight out toward the duct on the right? You want to get rid of the support studs on the left and move them to your white line marks beside your stud at the duct on the right? If that’s right, can you go back twice the length of your add on, or more, to bolt flat plate along the side or c channel (underneath)? If I’m thinking with you, I’d prob. go 4 ’ or more, support the upper joists, knock out the studs that far, then slip a 3/8” c channel up under and around the existing header, and reinstall the studs that you can(cutting them to allow for the channel). The weight on the studs should help cantilever the added 1’ at the butt splice. If you think you need more, add a flat top plate.

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