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| Von
Saw your question - realized I just did a project using the same materials. I have detailed notes about this - now just to figure them out
OK, so here it goes. Units are in metric; using softwood
2x10 has a shear resistance of 6.5 kN, and a bending resistance of 4.49kN.m
2x12 has a shear resistance of 7.2 kN, and a bending resistance of 6.05kN.m
So basically it depends on the load that your putting on.
My charts have a lot more details, so if you want to send me some info, I can do the calcs ( I'm on summer co-op, yet need the practice ) | |
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Lumber strength
