I decided that 6″ was not enough soil for me, so I’m upgrading to 12″ boxes. I found out my old boxes will not “mix and match” with my new vinyl materials, so basically I’m rebuilding them. They are 4′x4′x12″ (instead of 6″ high). Cost:
- $27 router (on super sale! at Harbor Freight Tools)
- ??? bit (need to pay my sister back for this)
- $223 posts and rails (4-8′ posts, 11-16′ rails, $14 each)
- $0 borrowed a miter saw
- $0 jig for routing holes in posts (thanks to my talented brother in law!)
Altogether, it will cost about the same to build twice as many boxes, twice as high as it did to buy the original 3 boxes from the squarefootgardening.com website. And I’ll sell my 3 boxes to a friend, and recoup a about a third of my cost.
The rails and came in 16′ lengths, so I used a miter saw to cut the rails into 4′ lengths. This was super easy.
I cut the posts down from 8′ lengths. I cut the posts to 14″–this left 11″ for the hole where the rail will go, with 1 1/2″ on top and bottom. This took at least two cuts on the miter saw, and I had to use a bigger saw that was tall/deep enough to cut it. Another option would be to use a jig saw, a table saw (it would take two cuts), a skill saw, or even a simple hack saw.
Here is my son building a “house.” His fun will be over when I actually set up my boxes!
Next, I took the posts and marked a template for cutting the holes. I drilled a hole big enough for my router blade, then put down a jig to guide my router and finished boring out the hole. You could also use a jig saw, or perhaps even a combination of a skill saw and jig saw.
After that, it was a simple matter of assembling the rails into the holes, putting caps on the top, and filling it with soil.