Project Guide

How to Build a Window Box Planter

1
MEASURE THE WINDOW
Measure the window
  • Measure the dimensions of the window for width, height and distance from the top of window to the ground
2
DECIDE PLACEMENT OF WINDOW BOX AND STRUCTURE
Decied placement of  window box
  • For the project shown, we made the inside top of the structure 7 feet tall and and 5 feet wide.
3
MAKE SIDE LATTICE PANELS
Make side lattice panels
  • Make two lattice panels as shown, measuring 12 x 84 inches. 
  • Use the 2- x 2-inch x 8-foot boards as the frame, using 2-inch screws to attach. 
  • Use the 1- x 2-inch x 8-foot boards for the inside lattice, using 1 ¼-inch screws to attach the centers.
4
CUT THE 2- X 4-INCH X 8-FOOT BOARD
Cut the 2 inch x 4 foot boards
  • Cut two 2- x 4-inch x 8-foot boards to 78-inch lengths.
  • Mark 9 inches in from each end and cut with a jigsaw.


TIP: Draw your template on a piece of cardboard and cut with scissors when satisfied with shape. 

Use as a template to mark all the ends needed.

5
CUT THE 2- X 6-INCH X 8-FOOT BOARD
Cut the 2-in x 5 foot boards
  • Cut seven 21-inch lengths from the 2- x 6-inch x 8-foot boards.
  • Mark 9 inches in from only one end of each length and cut with a jigsaw.
  • Notch each piece 3 ½ inches deep, from 0 to 1 ½ inches and from 10 ½ to 12 inches, to make room for the 2-inch x 4-foot boards.
6
ASSEMBLE GRID
Assemble grid
  • Assemble the boards from steps 4 and 5 in an interlocking grid with all short pieces facing the same direction. 
  • Secure the structure using glue and large screws as needed.
7
ATTACH SIDE PANELS
Attach side panels
  • Lay the side panels flat on ground to attach to the top structure; make sure it fits squarely inside.
8
MAKE WINDOW BOX
Make window box
  • Use two 5-foot long pieces of 1- x 12-inch x 8-foot board for the front and back of the box.
  • Make the sides with the desired angle to attach the front. 
  • Use a piece of 1- x 8-inch x 8-foot board for the bottom of the box. 
  • Use wood glue and screws for a solid bond. 
  • Drill drainage holes in the bottom of the window box. 
  • Attach to the frame so the box is below the height of the windowsill.
9
PAINT OR STAIN
Paint or stain
  • Paint with exterior paint or stain as desired.
10
ATTACH TO EXTERIOR WALL
Set up window box for planting
  • Attach the entire structure to the wall, securing with 3-inch screws.
11
SET UP WINDOW BOX FOR PLANTING
Set up window box for planting
  • Put a layer of rocks at the bottom of the window box to stop the drainage holes from getting clogged.
  • Add potting soil and flowers.