How to Build Wooden Flower Boxes


Spruce up the appearance of any dull or plain section of your house with a simple flower bed filled with colorful annuals or perennials. Although you can make square or rectangular boxes from several materials, use wood for natural appeal that blends in any surrounding. Place several homemade wooden flower boxes along your driveway or on different steps leading to a porch or terrace for a warm, welcoming and homely feel. You can also mount the flower box under a windowsill or against a wall and fill it with trailing flowers and plants.

Things You'll Need

  • Measuring tape
  • Paper
  • Pen
  • 5 1-inch thick wooden boards
  • Handsaw
  • Medium grit sandpaper
  • Drill
  • 2-inch wood screws
  • Measure the spot over which you will place the flower box to decide the length, width and height of the wooden boards. Write the measurements on paper. Keep the height up to 9 inches and width no more than 3 feet. Consider placing two flower boxes to cover wider areas.

  • Cut the wooden boards to size with a handsaw or buy pre-cut boards from your local building supply store. A rectangular flower box has five boards--two long boards for the front and back, two small boards for the sides and a base board equal in length to the front but as wide as the sides. Sand the long and short edges of each piece.

  • Lay the base on your worktable and decide which long edge you want to attach the front board to. Hold the lower long edge of the front board flush against the side of the base firmly. Drill 2-inch wood screws on each corner and two equally spaced in between to join both the pieces together.

  • Position a side board against a small edge of the base. Align it so its side lies flush with the short edge of the front board and its lower edge is flush with the base. Drill two wood screws to join it to the base, and another two to secure it to the edge of the front board. Repeat the process to attach the back to the other long edge of the base and then the second side.

  • Turn the structure over and drill 1/2-inch wide drainage holes over the base. Space these randomly apart. Sand the surface on this side and inside the flower box.

Tips & Warnings

  • Wood for flower boxes includes cedar, pine, oak and teak. Select the one that meets your budget and preference.
  • Paint the flower box or apply a coat of protective sealant.

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  • Photo Credit planter image by jimcox40 from
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