- cut boards to width/length,
- screwed them to a 4″x4″,
- put in a base.
I got the wood pallets from a construction site down the road, the screws were screws I pulled off of an old shelf unit and the only material I had to purchase was the fence boards as the siding. Overall, it was a very cheap and extremely easy project.
The box itself holds 450 cubic yards of soil which is perfect for a nice big planter! The overall sizes of this planter box are 5″ x 2″ x 18″.