How to Scab a Floor Joist With Plywood

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Plywood is an excellent material that can be used to Scab (not sister) a notched floor joist. In this video i use 1-2 layers of 3/4" plywood with 16D nails applied in a staggered pattern at approx. 6-8" O.C. C
Consult a local engineer for the requirements based on your specific project and scenario- this is not universal advice that can be freely applied to any project.

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7 сен 2024

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Комментарии : 3

@PeteJ-q3t 2 месяца назад

Plywood is actually stronger than dimensional lumber. No such thing as too much construction adhesive; do not use wood glue. The nails are only there till the glue dries. Better to use structural screws than 16d nails, makes it all tighter like plywood but more like a lam beam. GRK screws come in lengths up to 4". I've done this and over-nailed (too many) with 8d ring-shank nails. Keep it all as tight as possible.

@architect_talk 2 месяца назад

Thanks for the feedback ! There’s a lot of conflicting information regarding screws vs nails for these types of repairs. Screws do offer more clamp force but from my research can be prone to breaking or splitting the wood, as opposed to nails which can flex

@PeteJ-q3t Месяц назад

Structural screws have the same strength as framing nails. As I said, they're only there the glue dries.