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Deck Planter Plans

by Ovidiu


This step by step diy project is about deck planter plans. If you want to build a wooden planter for your deck, you should follow the plans and instructions described in this article. Any person could get the job done in just a few hours, as this project doesn’t require much expertise in the field nor a significant investment. In addition you could adjust the size of the planter as to fit your needs, without having to use other woodworking techniques.

In order to get a professional result, you should use quality materials. For example, if you plan to place your planter outside, we strongly recommend you to invest in weather-resistant lumber (cedar, redwood, pine). Check if the slats are in a good condition (straight, without cracks and chips). Use a pocket hole system to lock the braces to the corner posts. In this manner, you will get rigid joints and a neat appearance. See all my Premium Plans HERE.



Projects made from these plans




Cut & Shopping Lists

  • A – 4 pieces of 4×4 lumber – 24” long CORNER POSTS
  • B – 4 pieces of 1×4 lumber – 33” long, 4 pieces of 1×4 lumber – 16 1/2” long BRACES
  • C – 18 pieces of 1×6 lumber – 20” long SIDE SLATS
  • D – 2 pieces of 2×2 lumber – 33” long CLEATS
  • E – 6 pieces of 1×6 lumber – 19” long BOTTOM SLATS
  • F – 4 pieces of 1×6 lumber – 5 1/2” long POST CAPS


 Hammer, Tape measure, Framing square

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses


 One day




Building a deck planter




Building a wooden planter for your deck is a straight forward project, for any person that knows the basic woodworking techniques. Although there are many alternatives you could choose from, we consider that these plans could fit any deck design.

Top Tip: Fit caps made of 1×6 lumber on top of the corner legs, in order to add character to your planter. Round the exposed edges of the planter, by using a router and a 1/4 bit.



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Deck Planter Plans



The first step of the woodworking project is to build the two sides of the planter. In order to get a professional result, we recommend you drill pocket holes at both ends of the braces. Insert 1 1/4” screws trough the braces to lock them to the corner legs.

Top Tip: Secure the 1×6 slats to the supports from the inside, as in the plans. Check if the corners are frame, using a carpentry square.

Assembling the planter

Assembling the planter

After building the side of the planter, we recommend you to recommend you to lock them together, by fitting the front and the back faces. As you can easily notice in the image, you should fit 1×4 supports between the 4×4 corner posts.

Afterwards, secure the 1×6 slats on the interior of the planter. Align the slats at both ends, in order to get a neat appearance. Add glue to enhance the bond of the joints, but remove the excess compound.



Building the bottom of the deck planter is not difficult, if the right techniques are used. Install 2×2 cleats on both side of the planter, as in the plans, before attaching the 1×6 slats. Check if the cleats are horizontal, using a spirit level.

Top Tip: Drill pilot holes at both ends of the wooden slats and secure them to cleats, by using 1 1/4” screws. In addition, don’t forget to countersink the head of the screws.

How to build a deck planter

How to build a deck planter

Last but not least, you should take care of the finishing touches. In order to get a planter with a neat appearance, we recommend you to fill the holes and the cracks with wood filler. Let the compound to dry out before sanding the surface, along the wood grain.

Top Tip: Cover the wooden components with several coats of stain or paint, to protect them from wood decay.



This project was about flower box plans. If you want to see more outdoor plans, we recommend you to check out the rest of the projects. Don’t forget to share our projects with your friends, by using the social media widgets.




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Bernie Kinney -

What are the Brad Nails used for in the Deck Planter Box plans?

Ovidiu -

To attach the post trims.

dan -

im retired and need something to do. i love your plans.

Ovidiu -

Thank you. Looking forward to seeing your projects.


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