The pergola can either be attached to the house or constructed as a free-standing entity. In either case, you will need to anchor the posts onto concrete. Trying to set the posts onto the concrete without any type of anchor will result in it being knocked over in the event of strong winds.
In a few weeks I'm getting a concrete patio poured in the backyard. Before they come to do that I am trying to plan my pergola. Its going to be anchored to the house on one side, extend out approx 15ft and secured on 2 6x6 posts.
If you set your posts like Greg describes, you better have a plan for lateral stability, or in the next big wind, it will probably fall over. I subscribe to Deck'sEct method. Use pressure treated posts, treated to ground contact specs. This will give you the lateral stability. Drain rock at the base of the poss, and slope the concrete at the
The post will now be set in place on the footing. Just remember that the post will not be fully secure while standing freely. Use a stake and a scrap 2x4 to brace the post in position if it is wobbly until you connect it to the other posts. Install the other posts for your pergola the same way. You are now ready to begin building your pergola.
I am needing to repair my pergola posts which are 4x6 western red cedar due to rot out at the base where they are set directly into the concrete footer. I have the original permitted plans so the concrete footer is great.
The photo on the left shows a post set in a bracket that has been mounted to the top of a footer. The photo on the right shows a post that has concrete poured around it, which can lead to a crack like you see here. When concrete is poured around a deck post in this way, the post will rot due to
Why Deck Posts Should Not Be Set in Concrete the left shows a post set in a bracket mounted to the top of a footer. The right shows a post that has concrete poured around it, which can lead to a crack. When concrete is poured around a deck post the post will rot due to moisture buildup by the soil.
Any cedar post set into concrete will rot here in Austin, seen it countless times. Simpson an example shown above does make some post base that are made to be set inside the concrete when poured, but they are too wimpy for me.