Square Planter Box Plans

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This step by step diy project is about square planter box plans. I have designed this square planter box so you can enhance the look of your porch or of your garden. The planter boxes can be built in a few hours with super basic materials and tools. Take a look over the rest of my woodworking plans, if you want to get more building inspiration.

When buying the lumber, you should select the planks with great care, making sure they are straight and without any visible flaws (cracks, knots, twists, decay). Investing in cedar or other weather resistant lumber is a good idea, as it will pay off on the long run. Use a spirit level to plumb and align the components, before inserting the galvanized screws, otherwise the project won’t have a symmetrical look. If you have all the materials and tools required for the project, you could get the job done in about a day.

 

 

Projects made from these plans

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Square Planter Box Plans

Building a square planter box

Building a square planter box

 

  • A – 8 pieces of 1×4 lumber – 24″ long LEGS
  • A – 4 pieces of 1×4 lumber – 9 1/2″ long, 4 pieces – 12″ long FRAME
  • B – 6 pieces of 1×6 lumber – 16 1/2″ long, 6 pieces – 16″ long FACES
  • C – 2 pieces of 2×2 lumber – 16″ long, 4 pieces of 1×4 lumber 15″ long BOTTOM
  • D – 2 pieces of 1×2 lumber – 13 1/2″ long, 4 pieces – 6″ long TRIMS
  • E – 2 pieces of 1×3 lumber – 20″ long, 2 pieces – 21″ long TOP TRIMS

 One day

 

 

Building a square planter box

Building the side frames

Building the side frames

The first step of the project is to assemble the frames for the sides. Cut the components from 1×4 lumber and drill pocket holes at both ends of the horizontal supports. Align the edges, make sure the corners are square and insert 1 1/4″ pocket screws. Add glue to the joints for a professional result.

Sides

Sides

Next, attach the 1×6 slats to the side frames. Leave no gaps between the slats and secure them to the frames with 1 1/4″ screws. Drill pilot holes before inserting the screws to prevent the wood from splitting.

Faces frames

Faces frames

Build the frames for the front and back faces of the square planter. Drill pocket holes at both ends of the horizontal supports and insert 1 1/4″ screws into the vertical legs. Make sure the edges are flush.

Faces

Faces

Attach the 1×6 slats to the frames, as shown in the plans. Use 1 1/4″ screws to secure the slats to the frames.

Assembling the planter box

Assembling the planter box

After assembling the four sides, you need to lock them together tightly. Make sure the corners are square and check if the edges are perfectly flush. Drill pilot holes and lock everything together tightly with 1 1/4″ screws.

Fitting the bottom cleats

Fitting the bottom cleats

In order to create the false bottom, you need to attach the 2×2 cleats to the interior sides of the planter box. Align the cleats with attention, drill pilot holes and insert 2 1/2″ screws to lock them into place tightly. Add glue to the joints for a professional result.

Attaching the bottom slats

Attaching the bottom slats

Next, fit the 1×4 slats to the cleats, as shown in the diagram.

Fitting the top trims

Fitting the top trims

Build the top trims from 1×3 lumber. Cut both ends of the components at 45 degrees, align the into place and lock them with 1 1/2″ brad nails and glue.

Fitting the side trims

Fitting the side trims

In order to enhance the look of the outdoor planter box, you need to attach 1×2 trims to the sides. Cut the ends of the trims at 45 degrees, as shown in the diagram. Fit the trims to the sides and lock them into place with 1 1/2″ brad nails and glue.

Square Planter Box Plans

Square Planter Box Plans

Use 120-220 grit sandpaper to smooth the surface before applying the coats of paint or stain to protect the wood from decay.

Outdoor planter box plans

Outdoor planter box plans

This is a simple project you should be able to build in a few hours without much effort. Remember that you need to adjust the size of the components so they suit your own needs. Don’t forget to check out the rest of my outdoor furniture projects, as I have designed lots of plans.

 

 

This woodworking project was about square planter box plans free. If you want to see more outdoor plans, check out the rest of our step by step projects and follow the instructions to obtain a professional result.












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