[iowa]

Hello everyone,
I am building a simple pole shed to shelter my outdoor woodstove and store fire wood. The shed is 22' x 22' with a post and beam 4/12 roof. The beams at the peak and at the eves are about 3" x 8" wood bridge plank. The outside rafters are made from the same timbers. I was thinking of using some old barn lumber for the rafters. I have some 2" x 10" boards I salvaged and I was thinking of ripping them down to 2" x 5" boards. Or I am going to use some 2" x 8" salvaged boards. Anyone have any suggestions? Do you think these would work and what about the spacing for each? Does anyone know of a website for designing your own rooves. I have also salvaged some 2" x 3" that I plan to use for the purlins. I was planning to install them with the 3" side against the rafter. Then I plan to put steel on the roof.
I would appreciate any information.

Thank you.
:no:

 

[Scuba_Dave]

I had the old 2x10's from dormering my house
I used them in my shed (10' wide) without ripping them down
Of course if you can get 2 rafters out of each one that's good

hmmm.....a 2x6 will span ~10', 10' 9" depending upon species
With snow load I think you need more then a 2x5

 

[johnk]

With 2by5`s I`d go 16in oc.If you could get the 2by8s then I`d go 24in oc.This is just my opinion and it is just a shed.It`ll be sturdy.I`m no Holmes on Holmes though,lol.:no: