How to build a DIY raised planter box for your front porch for flowers or vegetables.
Spring is here and I’m itching to get out in the garden and plant some flowers and veggies. Our front porch is the first place that I like to add a touch of Spring but adding flower pots has been a challenge because it’s such a tight space.
We do have a narrow wall next to the front door that was screaming for something but I couldn’t find anything to fit. I tried an IKEA Rast in this spot the first Spring we lived here, but I really wanted some kind of planter box so I could plant seasonal flowers.
I searched in stores and online the past 2 years but couldn’t find the perfect style or right size. So, since I couldn’t find what I wanted, I decided to build my own.
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DIY Raised Planter Box Supplies:
- (2) 3/4″ x 11-1/4″ x 8′ pine boards
- 1-3/4″ wire brads
- (2) 2″x2″x 8′ pine
- wood filler
- wood stain
- pot liner
- wood glue
- (2) 3/4″ x 11-1/4″ @ 38-1/2″ long (planter box front and back pieces)
- (2) 3/4″ x 11-1/4″ @ 9-1/16″ long (planter side pieces)
- (4) 2″ x 2″ @ 29-1/2″ long (planter legs)
- (2) 3/4″ x 3″ @ 38-1/2″ long (bottom rails)
- (2) 3/4″ x 11-1/4″ @ 9-1/16″ long (side bottom rails)
- (18) 3/4″ x 1-7/8 @ 10-5/8″ long (slats for bottom shelf)
- (5) 2″ x 2″ @ 9-1/16″ long (supports for pot liner)
- (2) 3/4″ x 40-5/8″ @ 1-7/8″ with a 45° angle (rim around planter box)
- (2) 3/4″ x 12-15/16″ @ 1-7/8″ with a 45° angle (side pieces for rim around planter box)
- table saw
- chop saw
- pneumatic staple gun
- palm sander
I’d already made a rough sketch of my planter so the next step was to figure out the dimensions. I wanted something that fit a wall on my porch so I measured the width, length and depth and went shopping for supplies.
Luckily I found a plastic pot liner that was the right fit my chosen spot, and it’s the perfect foundation for my wood planter.
With all my supplies together and measurements worked out, it was time to cut the wood. I started with the main planter box and cut one of the 8′ pine boards into the front, back and side pieces of the box.
Next, I worked on the bottom shelf.
First I cut one 3″ strip off of the second 8′ pine board. Then I cut that 3″ strip so that it matched the same dimensions as the main planter box (10-9/16″ x 38-1/2″).
Then I cut the remnants of the second pine board into 1-7/8″ strips for the bottom shelf.
After I cut the strips, I used a jig to cut 18 lengths at 10-5/8″ to make the slats of the bottom shelf. The jig made it easy to get the same length for each slat and allowed me to do it quickly.
Finally, I cut the 2×2’s to length for the planter box legs. As a result, I ended up with 4 legs at 29-1/2 ” each.
It was a bit of an afterthought, but I had some wood leftover and decided to use the remainder of the 1-7/8″ strips to make the rim around the planter box. I cut a 45 degree angle on each end so they would fit together.
Now that all of my wood cut, it was time to put my planter together.
I started by assembling the flower box. First I applied wood glue on the seams and nailed the sides together using the pneumatic nail gun.
Next, I added the legs with a bit of wood glue and nailing each in place, recessing them 3″ into the planter box.
After that, the bottom shelf was attached, in the same exact way the planter box was put together. First the front, then the sides and back. Each piece was glued and nailed.
Next, I added the supports under the pot liner. In order to do that I put the planter and pot liner upside down and space the supports on top of the upside down pot liner. Once I was satisfied with the placement of the supports, each one was nailed into place.
It was time to add the rim around the planter box. First, I attached the long, side piece, with glue and nails, and then I matched up the 45 degree angles and attached the sides and the last long piece.
Finally, I installed the slats for the bottom shelf. I laid them out to figure out spacing and, as luck would have it, a 3/4″ board was the perfect spacer in between each slat.
My DIY raised planter was complete and ready for stain.
In order to make it look more finished, I filled all the nail holes and seams with wood putty and sanded everything smooth.
The last step in this build was to stain it.
We have a stone house so I wanted my planter to have a rustic look. With this in mind, I decided to go with an ebony stain. I simply rubbed it on with a clean rag and wiped off the excess.
Some pretty plants and old pots finish off the rustic look.
I had a blast building my new piece and it turned out to be the perfect fit for our front porch. I can’t wait to plant it for each season. Maybe some herbs, or even veggies. Definitely flowers, too!
How about you? Have you been able to plant anything yet?