How to Build a Wooden Planter Box
Updated: Jun. 01, 2023An simple planter box that's all curves and circles

- Time
- Complexity
- Cost
- An hour or less
- Beginner
- $51–100
Draw the circles, then cut
You can put together this simple window planter in less an hour. For each planter, you’ll need three 6-in. clay pots, 3 ft. each of 1×10 and 1×3, and 2 ft. of 2×8.
Cut the 1×10 and 1×3 to length (see photos for dimensions). Pot diameters vary, so size the holes by scribing and cutting out a 6-in. circle from cardboard to ensure that the pot will rest on its rim (Photo 1). Keep testing until you find the size. Then lay out and cut the openings.
Use a 5-gallon pail lid to scribe the bracket curves (Photo 2). Make sure the grain runs parallel to the shelf for strength. Smooth off the rough edges and paint the parts before assembly—especially if you want the two-tone look. Then screw the parts together with 2-in. exterior screws.
Mount the shelf to the wall by screwing through the hanging strip into the wall framing.
Required Tools for this How to Make a Wooden Planter Box Project
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
- 4-in-1 screwdriver
- Cordless drill
- Countersink drill bit
- Drill bit set
- Jigsaw
- Level
- Miter saw
Required Materials for this How to Make a Wooden Planter Box Project
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here’s a list.
- 1x10
- 1x3
- 2-in. exterior screws
- 2x8
- 3-in. exterior screws (for attaching to the house)
- 6-in. clay pots