I have a ranch style with a roughly 5 x 12ft porch on front. The current roof is such that the eave extends over the porch and is supported by 3 4x4 posts. I want to make it a gable extension using a blind valley or California valley. I want to use 2 6x6 posts, one at each corner of the porch. I want to use LVL beams to support the load from the posts to the top plate. My questions are this: A)Can I use 7 1/4 x 1 3/4LVL beams from the post to the top plate of the house?, how do I determine loading and what size beam to use? B) Are 2 6x6 posts going to be enough? C) Do I need any extra bracing under the top plate where the beam will rest? D) If I understand it, the 12ft span between the posts wont carry load so is a 2x6 ok for this?... This is my first post and any advice or comments would be appreciated.
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