Raised planter beds, a.k.a. big garden boxes, are a great solution for growing herbs and vegetables in your backyard. They allow you to choose your ideal soil composition, help deter unwanted animals, and provide necessary drainage for crops. But the best part is they’re quick to build and install, a project that can easily be completed in a day. Follow along as we breakdown the step-by-step process for building raised planter beds, and you’ll be on your way to a flourishing vegetable garden in no time!
The material amounts and tutorial below create a 36”l x 36”w x 12”h planter box. The larger planter shown in the photos is 86”l x 36”w x 12”h.
What You Need
- Two 1” x 6” cedar boards @ 12’ long for sides of planter bed
- One 4” x 4” cedar post @ 8’ long for planter bed posts
- Circular saw
- 2.5” Galvanized screws
- Cordless drill
- Speed square
1. Measure the future location of your planter bed(s) to determine the length, width & height of the raised planter bed.
2. For a 36”l x 36”w x 12”h planter box, measure and cut the following lengths of 1” x 6” boards for the sides of the planter:
- Four 36” long 1” x 6” boards (for the length of the box)
- Four 34” long 1” x 6” boards (for the width of the box)
Next cut four 12” long posts from the 4” x 4” post.
4. Now that everything is cut, it’s time to assemble the first two sides of the box! Create the first face of the box by attaching a 12” post at each end of two parallel 34” boards. Use two galvanized screws per each end of the boards. The ends of the 1” x 6” boards should be flush with the post edges. You’ll have 1” of post sticking out at the bottom, which will be helpful in leveling the box later. Repeat step 4 to create an identical 2nd face of the box.
5. Next, stand up the two sides you’ve made about 36” apart from each other, and connect them with two stacked 1” x 6” boards on each side. Attach using 2 galvanized screws per end of board.
6. Set the planter box in place and use the post “feet” to burrow into the ground in uneven areas.
7. Fill the planter box with soil and plants, and it's time to get growing!
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