Let's start at the bottom. Do you have frost depth in the area where you live, anything like this that you build like this the bottom of the concrete and post have to be deeper than frost.
How high off the ground will the deck be?
Let's start at the bottom. Do you have frost depth in the area where you live, anything like this that you build like this the bottom of the concrete and post have to be deeper than frost.I am building a 16x20 ground level deck with beam supports in 2' concrete on the corners and middle beams. I want to build a cantilevered pergola on one side of the deck, posts total 18' apart with a 3rd post in the center. I plan on using 6x6x10 posts set in 3' deep x 12" concrete, with the beams 2x8x10's sandwhiched on each side of the beam, 3' on back side of beam, 7' out over the deck. 6x6 beam supports at 45* supporting the 7' side from 3' away from the posts. I plan on using around 7 2x6x20's for the rafters. Also, the 3 deck beams will attach to these posts as well at the ground level, so that will be more weight keeping the posts in place. My question is regarding the back side cantilever support. I initially thought about using 6x6 or 4x6 going from the 3' back side of the beam to 2/3 way down the post to support the cantilever side. However I was thinking that using steel support cables anchored into the post footings might be a stronger option? If so, what kind of cable should I use to anchor the cantilever? I plan on starting the build tomorrow.
Thanks in advance for the advice!
I’m framing it with 2x8’s so it will be maybe 10” off the ground. I live just outside of Louisville KY, the frost depth here for posts is 2’. I built a privacy fence here 10 years ago, posts at 2’ and have no visible heave or leaning of the fence still.Let's start at the bottom. Do you have frost depth in the area where you live, anything like this that you build like this the bottom of the concrete and post have to be deeper than frost.I am building a 16x20 ground level deck with beam supports in 2' concrete on the corners and middle beams. I want to build a cantilevered pergola on one side of the deck, posts total 18' apart with a 3rd post in the center. I plan on using 6x6x10 posts set in 3' deep x 12" concrete, with the beams 2x8x10's sandwhiched on each side of the beam, 3' on back side of beam, 7' out over the deck. 6x6 beam supports at 45* supporting the 7' side from 3' away from the posts. I plan on using around 7 2x6x20's for the rafters. Also, the 3 deck beams will attach to these posts as well at the ground level, so that will be more weight keeping the posts in place. My question is regarding the back side cantilever support. I initially thought about using 6x6 or 4x6 going from the 3' back side of the beam to 2/3 way down the post to support the cantilever side. However I was thinking that using steel support cables anchored into the post footings might be a stronger option? If so, what kind of cable should I use to anchor the cantilever? I plan on starting the build tomorrow.
Thanks in advance for the advice!
How high off the ground will the deck be?
That's a good point about the height clearance, I may just get some 12' 6x6's instead, and cut 1' off the top. I plan on having a slight incline to the roof of the pergola, and planning something like this, but with 3 posts instead of 2. In this pic they are using 4x6's on the back for the cantilever brace, but I figured 6x6's would be stronger and help counter weight, or I could add anchors into the cement and use cables on the back side if I would need more than bolted in 6x6's to anchor the back side?