My pole barn shop has 11' long 2圆's 24' o.c. If you think it's wrong, by all means speak up. I can dig around for the site later, but here's a screen shot of the table at the bottom. can span 14' 2' to meet the requirements. For my application it read #2 Doug Fir 2x10's rafters 16' o.c. What should I be seeing? If I recall correctly, the table I went by, was specific set to a 3:12 pitch of unsupported #2 Douglas Fir rafters with a snow load of 48-50psf. Ha hA! I only wish I was that I tried reading that span table, thank you, but I couldn't make sense of it. I don't know what that equation was, but it made smoke come out of my ears and my eye's still twitching from reading it.
(example photo below) The covered area will be 16x48, but the rafter span will be about 14' after beams, eves etc.
