| bigbub 2006-06-30, 9:25 am |
| Thanks, I went with doubled up 2x8 for the roof headers and everything
seems to be good. I used 2x6 for the rafters. Everything seems nice
and sturdy and I haven't even added the corner bracing yet.
I got one more question that hopefully I can get answered. I used
standard un-treated pine for everything that was visable inside the
roof. So the wood is outside, but doesn't get any direct contact with
the weather. What should I use to seal it. I think I would like to
stain it. Do I just pick a stain of choice and then also a sealer. I
have seen MANY complaints on the groups about thompsons. Anyone have
one they suggest?
Thanks again,
Jeremie
Sal's Dad wrote:[color=darkred]
> This is such a little structure - rafter spans of 5' or less - TOTAL roof
> load of maybe 120SF x (10 lbs structure + figure 40 lbs snow) = 6,000 lbs,
> and that's after a blizzard - bet nobody will be hanging out in the gazebo
> when there's 2' of snow on the roof! -
>
> Southern Pine's rafter table http://www.southernpine.com/pdf/table21.pdf
> says 2x6 rafters should be good for 9' or more, depending on spacing. I
> would dig up a table for 2x4's, bet they'd be fine.
>
> As to the beams, you have 6,000 lbs distributed over 36 LF of beam, or 167
> lbs/LF. according to http://www.raisedfloorliving.com/spantables.shtml a
> 4x6 should be OK for 220 lbs/LF with 8' spans (measure your spans between
> diagonal bracing). Again, your beams will only deflect under a MAJOR snow
> load.
>
> Roof pitch? Anything you like! it really doesn't matter, just make sure
> your shingles are compatible (over 4/12, no problem)
>
> Good Luck!
> Sal's Dad
>
>
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