How to Build An Arbor
- Wood: 4 8ft. 4"x4" for posts, 3 4"x4" for cross braces, 2 10' long 2"x8" for the front and back beam, 5 2"x4" sides and , 4 8ft. 2"x2", 2 8ft 1"x2" for the hanging diamonds.
- 1 Gallon of natural cedar stain.
- 4 - 50lb. bags of fast setting Concrete
- Black chain and eyehooks
- Two Solar Lanterns
- Outdoor screws (I used 3.5" and 2" but smaller would have been fine)
After we had all the materials together we began with the plan. We cut the pieces to the appropriate lengths and began staining. We could have assembled the arbor first then stained but it would make it difficult to do the extra little things like the Japanese Maple Leaves we stained into the posts. The other disadvantage to staining after assembly would be the drips that might happen from up above and fall onto the wood pieces below.
When we did the second coat of stain we placed Japanese maple leaves on the post and painted the stain over them. This left a subtle impression behind.
While the posts were drying from the stain I worked on the cross beams that go across the front and back of the arbor. These were made from 10' long pieces of 2"x8" lumber cut down to 9 feet. I drew a design on each end by making a template out of cardboard and tracing the outline onto the ends of each board. I was very careful when cutting these pieces since I was going to use them as hangers for the solar lanterns later. A lot of measuring was involved in cutting the diamond shapes out. First I took a small piece of 4"x4" (which actually measures 3.5"x3.5") and used it as the diamond template. Then I drew a line lengthwise down the middle of the 2"x8" and measured the center and post diamonds. Since 4"x4" pieces would fit through both the front and the back I had to be very precise on the measurement. Once I had the center points I used the 4"x4" template to draw the diamonds by lining up the corners on the marked lines.
Then came the cuts. To make the cuts I used a 1/2" wood bit to drill holes into the corners of the diamond outlines. Then I came back with a jigsaw and cut the holes and the end pieces. It sounds easy but this step was the most tedious! When the diamond cuts are made I had to make sure that I cut a little more than what I marked since the 4"x4" pieces go through the holes and need that space. Then we sanded and stained.
The last step for this blog post was setting the posts in concrete. I dug the holes and centered the posts into the holes, then while my wife held the post I dumped the dry concrete mix into the hole and added water. No mixing was necessary with the fast setting concrete. Due to the high winds that day we measured multiple times to make sure the posts were straight and even with each subsequent post. This was a challenge and might have been done easier if we had screwed in sacrificial lumber to the posts to use as temporary support but we didn't want to harm the finish.
Continue to Part Two of How to Build an Arbor