You are going to love this special wood planter box DIY that I am sharing with you today, especially if you’ve been spending any amount of time in your backyard and are looking to spruce things up a bit! And bonus – these wood planter boxes cost under $30 to create!
First, if you haven’t ready my cozy outdoor patio decor inspiration post yet, then go ahead and check it out. I shared three different design inspirations for your patio or deck decor with links to all of the pieces included.
One of the boards had some modern and stylish wood planter boxes from World Market. And while I absolutely love World Market, who needs to buy them when you’ve got a handy hubby who can basically make your visions come to life?
What Wood is Best for Planter Boxes?
I literally hadn’t even thought about the fact that when you have wood planter boxes, you have to consider the type of wood for rotting purposes. I basically had the end result picture in my mind and hadn’t thought any further than that.
This is why I always like to think my ideas through with Ry before beginning them.
We chose to go with cedar for our planter boxes. It’s a really durable, weather-resistant wood that also looks really nice. We ended up buying cedar fence pickets to use to build our planter boxes.
Do You Need to Line a Wood Planter Box?
Wooden planters do require some kind of protection from wood rot (if you plan on potting the plants directly in the box). The important thing is that you will want to make sure the plants will have a place to drain. Whether you use a plastic liner or something else – you do want to keep this in mind as you prepare.
It’s not entirely necessary to line a wood planter box. We built ours thinking that we would fill them with potting soil and plant directly in them and then we ended up just building a base for the pots to sit inside the planter box.
How do You Waterproof the Inside of a Planter Box?
There are a few ways you can waterproof the inside of a wood planter box. The first option is to use a plastic liner created for gardening. You would need to attach the plastic liner with a heavy duty staple gun.
Or, if you’re like us – you like to invent new ways to make things work for you.
We used a spray-on liner called Plasti Dip to protect the planter boxes from water. I am almost 100% sure this was just something my husband had lying around the garage for one of his car projects. My guess is he saw It and figured it would do the trick for protecting the wood planter boxes from rot.
While we didn’t actually pot the plants in the planter boxes and are using them more as a frame – we likely won’t see how well it holds up to wood rot. But I’m guessing it would totally do the trick if you’re up for giving it a try!
How to Make a Wooden Planter Box DIY
Materials You Will Need:
How to Build a Wood Planter Box:
- Cut each of the cedar pickets to size (we did 18”):
Ry cut the top beveled edge off of each picket and we did not use those pieces for the exterior of the planter box. We did end up using them when we built the frame to go inside and hold the pots I purchased.
- Cut the 1×2 Framing Pieces. (16.5”):
We used 4 individually cut pieces to create the frame for each box. Each of the 4 pieces were used as corners of the frame to serve as a brace for the box.
- Build out the frame by attaching one row of cedar to 4 framing pieces:
Each of the 16.5″ framing pieces was placed in a corer of the frame for the planter box. Each piece is attached to a piece of cut cedar and together, it creates the “frame” of the planter box.
- Add the additional slats:
For this step, once we had the frame created – we continued adding a layer of pickets on top of the base payer all the way up to the top. To finish the box, we added a ledge to the top as a finishing touch.
- Attach the top ledge:
We used 4 – angled 12″ cut pickets (measured short end to short end) to create the top ledge of the planter box. Each of the boards was cut at a 45º angle.
You could easily call it done here! But we knew that since the box design was deep we would need to either build a base or fill it with something to take up some of the space at the bottom. We chose the former.
I’m really glad we did because I ended up not wanting to actually plant my ferns in the boxes and use them more as a holder for the plants. It worked perfectly!
I was so happy with how this wood planter box DIY turned out. It was fairly simple and took under an hour to create each box.