Planter Box

Submitted by thediyplan on Sat, 06/29/2019 - 05:51
Difficulty
Intermediate
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I built this DIY Planter Box few years back with pressure treated lumber and corrugated steel roof panels on the sides. Over the years we had many different vegetables grown in the planter box. I love how it looks and it holds a lot of dirt for vegetable plants with deep roots. Also, the box is at convenient height for taking care of the plants.

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Planter Box
Dimensions
Planter Box Dimensions

Preparation

Shopping List

Tools for this project

Drill
Kreg Jig
Miter Saw
Tape Measure

Material List

• 2x4x8' (x6)
• 2x6x8' (x3)
2 1/2" Pocket Hole Screws
2 1/2" Wood Screws
• Corrugated Steel Roof Panels (x4)

Note: Lumber dimensions are listed as nominal size.  See lumber sizes for actual dimensions vs nominal.

Disclosure: Some of the links on this page as well as links in “tools for this project” and “material list” sections are affiliate links. 

Cut List

 

DIY planter box cut list

Instructions

Step 1

Planter box long side

Cut and Assemble Long Sides

Since this planter box is for outdoors and will be exposed to moister, it’s a good idea to use pressure treated wood. Pleasure treated wood is commonly used for outdoor fencing.  Start with making the long side of the planter box. Cut boards per provided dimensions in the cut list and drill pocket holes using Kreg Jig. Assemble using 2 1/2" Pocket Hole Screws. You will need two long sides and two short sides.

Step 2

Planter Box short side

Assemble Short Side

Similar to step 1, cut per dimensions provided in the cut list and assemble using 2 1/2" Pocket Hole Screws. The 26" long 2x4 will need to have 3 pocket holes drilled on each side. These pocket holes will be used to attach to the long sides of the planter box.

Step 3

Planter box frame

Attach Both Short and Long Sides Together

Place all sides on a flat surface and attach using 2 1/2" Pocket Hole Screws.

Step 4

planter box bottom blocks

Add Bottom Blocks

Flip the planter box upside down. Take 2x6 and cut 5 boards to 29" in length. Place two boards at each side and the remaining three evenly spaced out. Then attach all boards with 2 1/2" Wood Screws.

Step 5

Planter box sheet metal bottom

Place Sheet Metal Inside

The bottom of the box will need to be covered with either a flat sheet metal or with Corrugated Steel Roof Panel. Drill bunch of 1/4" holes thru metal for water drainage.

Step 6

Planter box with corrugated steel roof panels

Fasten Corrugated Steel Roof Panels

For the last step, place Corrugated Steel Roof Panels on all four sides attaching it with wood screws. Use red sheet metal snips to cut panels for the short sides. Using wood screws attach one 2x4 on top. This will prevent the box from coming apart once dirt is added inside. Metal angle or metal wire could be an alternative to 2x4 on top if you prefer not to use it.

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