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I'm planning to build what might be best described as a post and beam style picnic shelter, only it's intended to cover a retired RV from the elements. (I live in Kentucky, what can I say?) The covered area will be about 11' wide, 36' long and 11' tall, with rafters and gable roof above that.
I'm thinking of using pressure treated 6x6 posts for the supports, with double 2x12's for headers (to span about 12') and wondering if there is a recommended way to attach the 2x12's to the headers. Attached are 4 ways I could think of.
#1, 2, and 3 are variations using 1/2" carriage bolts and #4 uses Simpson type metal connectors with the headers on top of the posts.
I'm partial to #2 because that leaves a space to the right of the headers for attaching collar ties, but will it significantly weaken a 6x6 to cut a 3" rabbit out of it?
Also, what do folks think is the best way to mount the posts to the ground? Bury them in dirt or concrete, or use some type of stand-off atop a concrete base?
I appreciate any advice concerning these questions, and anything else that may be helpful!
Thanks a bunch,
"Argue for your limitations, and sure enough they're yours."