I am checking for a friend, and cannot find span tables that apply. 60 psf snow, asphalt shingle roof over 5/8″ OSB, no applied ceiling beneath, just cold attic space over ceiling joists, 6:12 pitch. What will a 2×10 SPF #2 span?
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What species of lumber?
Keep honking. I'm reloading.
S-P-F, Canadian.
I'm having trouble coming up with any at the moment. I'll try a bit more as I have time...........I haven't had my coffee yet, don't make me kill you.
The link Mark provided is the only thing I could come up with - He just got it posted before I did.
I have some published tables I could fax to you if you need 'em really bad.Common sense isn't very common.
What I am missing, Boss, is the tables with the magic number of 60 psf snow on top. The on-line calculator takes me up to 50 only. If you have what I need on paper, tell me when you will fax, and I will make sure the line is clear: 518-523-7149
You can try this calculator.
Yes, I am serious. And don't call me Shirley.
I looked up your rafters on my Canadain Span Book.
62.7 psf roof rafters ( no ceiling)
2x10's spf # 1&2 12" oc = 18'4
16" oc = 15'11
24" oc =13'
Reply if you need different spans. If you add collar ties you can increase the spans of rafters.