Hello, I’m currently planning out a carport build for my home where there’s not much code enforcement at all and I’m trying to figure out what size beams will be adequate.
My main concern is the 18 foot span from post to post. I want the entrance to be completely open so an additional post in the center is out of the question. I’m hoping double 2x12s will do but am willing to triple them if I have to
Here’s the basic plan
6x6 posts 8 ft on center running 24ft down each side of carport. (4 posts per side)
Double 2x12x20? beam running horizontally across opening of carport and between each post 8 ft OC
2x6 purlins 2 ft on center running the length of the carport
1x3 furring strips atop 2x6s to which sheet metal will be fastened.
Slope will be low. No snow load here. I’m thinking 6-8 inches over the entire span.
Anyways, will a 2x12 doubled be enough for an 18 ft span in this application?
Thanks!
My main concern is the 18 foot span from post to post. I want the entrance to be completely open so an additional post in the center is out of the question. I’m hoping double 2x12s will do but am willing to triple them if I have to
Here’s the basic plan
6x6 posts 8 ft on center running 24ft down each side of carport. (4 posts per side)
Double 2x12x20? beam running horizontally across opening of carport and between each post 8 ft OC
2x6 purlins 2 ft on center running the length of the carport
1x3 furring strips atop 2x6s to which sheet metal will be fastened.
Slope will be low. No snow load here. I’m thinking 6-8 inches over the entire span.
Anyways, will a 2x12 doubled be enough for an 18 ft span in this application?
Thanks!