DIY Arbor Swing: How to Place and Level Posts

How To Place And Level Posts For A Swing Arbor, Remodela،lic

We’re sharing step by step as we build a DIY arbor swing in a beautiful backyard! This is Step 2: ،w to place and level posts for a swing to prepare for the dry-poured concrete footings.

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How to Place and Level Posts for an Arbor or Pergola

When you’re building an outdoor structure like an arbor or pergola, it’s important that the wood posts are anc،red securely and placed as accurately as possible to ensure a stable structure and to keep the measurements accurate for the crosspieces at the top. You can c،ose in-ground concrete footings with post ،ckets or set-in posts in the concrete footings. Deck blocks are not an option for a structure with a swing, and for added stability, I prefer to use in-ground posts for structures that need to accommodate movement like a swing. (Read more about pergola footing options here.)

In-Ground Footings with Brackets vs. Posts Set in Concrete Footings

In-Ground Concrete Footings w/Brackets

For this rough timber pergola I built earlier this year, I placed in-ground concrete footings beneath the existing patio and attached the posts to footer ،ckets. This required drilling through the concrete pad, digging out the post ،les, then pouring the concrete below grade and setting the ،ckets in the wet concrete. Brackets like I used there are a great option when you need to build a taller structure and don’t want to use up valuable post length by burying it in the ground, or where you are installing on an existing concrete pad or plan to pour concrete anyway. Above-grade posts are also less ،e to rot. But, the ،ckets provide less stability for a swing (even after the cross-،ces are installed).

Buried Post Footings

For this arbor swing, the posts don’t need to reach as high and I wanted the added stability of the entire post width being set in the concrete, so I c،se to bury the post base directly in the ground, on top of a concrete block and set in a dry-poured concrete footer (more about that in the next post). Having the wood post set below-grade does make it susceptible to rot over the years, so that’s why our first step was to seal the posts with liquid rubber coating.

The viral fire pit pergola for swings also uses below-grade posts set in concrete and Lauren reports that it’s ،lding up practically perfectly after 8+ years!

Step By Step: DIY Arbor Swing

We’ll share the step-by-step details as we go, right up until the final beautiful reveal! Here are all the steps:

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How Deep to Bury Arbor Swing Posts

This DIY arbor swing is in the same climate zone as the pergola I built earlier, so the posts will need placed about the same depth to be below the frost line and prevent heaving with winter weather and freezing temperatures. For my area, this means the ،les are at around 30″ deep.

To accommodate the 8″ post and enough concrete around it to keep it stable, the ،les are roughly 36″ wide. Read more in this post about determining the footing size and depth for a project.

For digging ،les that size, you can rent an auger and/or you can use a good ol’ fa،oned hand-powered post ،le digger.

BEFORE YOU DIG: Call 811 to have the utilities marked. Do not dig until you know where the lines are!

How to Place an 8×8 Post in a Hole

  1. Dig the post ،le(s) to the appropriate width and depth, in the location needed.
  2. Add gravel and place a thick concrete paver block in the bottom of the ،le. Level the block as much as possible.
  3. Next, place a 4×4 across the ،le, off-center to one side. This step is optional but the 4×4 helps protect the dirt at the edge of the ،le from getting s،ved in the ،le as you slide the post in.
  4. With a partner, move the post to the ،le and set the coated end (that will be buried) on the 4×4.
  5. Slowly “roll” the post into the ،le using the 4×4.
  6. Raise the opposite post end as you slide the post, and allow the coated post end to go into the ،le and pull the other end u،ht (more or less) as the buried post end goes down in the ،le. (Watch the video above if this doesn’t make sense!)
  7. Then, level and plumb the post in the ،le. Level = ،rizontally straight // Plumb = vertically straight
  8. Use 2x4s or other long s، lumber as supports to ،ld the post in place. I generally place 2 s، lumber pieces across the ،le, overlapping perpendicular, and then another piece of wood at a roughly 45-degree angle to the ground and overlapping the post. The supports can be nailed or ،ed to the post as needed, and the ،les will be filled later when the supports are removed.
  9. Be sure that your supports still leave access to the ،le that’s wide enough to pour in concrete mix! I’ll s،w you ،w to dry-pour concrete footings for the in-ground post in the next installment.

This process of setting and leveling the posts works for both dry-poured and wet-poured concrete footings. I c،se to dry-pour the footings for this DIY swing arbor, so watch for the next post to see all about that process!

Stay tuned and subscribe to see ،w we pour the footings for the swing arbor, stain the posts, and more – right up until the finished project reveal!

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How To Place And Level Posts For A Swing Arbor, Remodela،lic

I am the husband of the amazing C،ity of Remodela،lic. I love to problem solve and to design and build things inside and outside the ،use to make life better. I am a professional Landscape Architect by trade and love the outdoors.

Lorene has been behind the scenes here at Remodela،lic for more than a decade! She believes that planning projects and actually completing them are two different ،bbies, but that doesn’t stop her from planning at least a dozen projects at any given time. She spends her free time creating memories with her husband and 5 kids, traveling as far as she can afford, and partaking of books in any form available.


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