Simply Stunning Planter Box

6 Materials
1 Hour

It is so crazy to me how sometimes the most simple upgrade can change the look of a space so much.

This super simple planter box is exactly what my front porch needed.

Follow along with me for a simple one hour DIY and I will show you how I made my new planter box.


  • 4 screw in 8” spindle legs
  • 4 angled top plates
  • 1 can of flex seal
  • outdoor varathane
  • stain of your choice
  • 2- 1x2” pine
  • 3/4” plywood

(in the picture I have a can of black spray paint that I didn’t end up using)

Cut list and tools


  • brad nailer
  • table saw

cut list

  • 3- 15”x15” pieces out of the 3/4” plywood
  • 2 -13.5”x15” pieces out of the 3/4” plywood
  • 10 - 15” long pieces out of the 1x2
  • 10 - 16.5” long pieces out of the 1x2
  • 4 -16.5” long pieces out of 1x2 long point to long point at 45 degree angles (these will be used to cap the top)
Assemble the box

I used my brad nailer with 1” long nails to assemble the planter. Start with all the 15”x 15” pieces, use one for the base and secure the other 2 to the base on opposite sides.

Next nail in the 13.5” pieces to complete the box.

*drill a few holes in the bottom of the box next. These holes will allow for drainage. When I did mine, I forgot to drill the holes at this step and had to do it after.

Seal the box

I decided to use flex seal to waterproof the plywood as best as possible. I sprayed the inside, as well as the outside with 3 light coats of flex seal.

Be sure to spray this in a very well ventilated area and use proper PPE. Allow it to dry throughly.

While you are waiting for the flex seal to dry, you can cut all the 1x2 strips for the outside of the box and stain these as well as the legs.

Add the detail

Use your brad nailed to secure the pieces on the outside of the box. I added the 15” top and bottom pieces first. Then I secured the bottom of the middle piece 7” and then spaced the other two In between at about 4.5”.

After you have the 15” pieces on, put on the 16.5” pieces on.

Add the top cap pieces

Air nail on the top trim pieces. (The ones that were cut at 45 degree angles)

Add the leg plates

Secure the leg plates onto the bottom of the planter box with the screws provided.

Screw in the legs

I used varathane outdoor gloss sealer. I applied 3 light coats over the entire box. Be sure to spray the legs as well as the bottom.

allow to dry throughly.

Stand back and admire your new planter box

I chose to put a fake plant in my planter box since I am horrible at keeping live plants or flowers alive. You can fill your planter box with whatever you chose.

I absolutely love projects like this. They are simple to do, don’t cost a lot of money and beautiful and add so much to an area.

Thanks for following along with me for this simple DIY. If you have any questions please do not hesitate to ask.

Don’t forget to follow along with me on here (Hometalk) as well as Instagram.

cannot wait for the next DIY



Resources for this project:
See all materials
Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Hometalk may collect a small share of sales from the links on this page.More info
Frequently asked questions
Have a question about this project?
3 of 13 questions
  • Teri Teri on Aug 10, 2022

    What a beautiful entrance your front door with the addition of the planter looks stunning. Black is such an elegant color for the front door. In my case the door is red so I will be painting the box red and keep the wood accent to make everything blend. You had a great idea thanks for sharing your creativity.

  • Pat Pat on Aug 13, 2023

    Why not use a plastic box, just drill some holes in bottom, glue recycled wood slats, used spindle legs (like old table found at tag sale) or small blocks of 2x4's for legs? You can save a small fortune.

  • Liz Liz on Aug 14, 2023

    I love this! Is the flex seal harmful to plants?

Join the conversation
3 of 159 comments
  • N'Ckyola N'Ckyola on Mar 03, 2024

    Nice! Love the door too! We recently painted our wood door in Inkwell. It's a game changer!

    • M Dawes M Dawes on Mar 09, 2024

      What line of paint is “Inkwell”?

  • N'Ckyola N'Ckyola on Mar 09, 2024

    Sherwin Williams. It is the darkest of blues - almost black