Building a Window Box


Decorate your home's windows with colorful plant boxes you can make yourself. These easy container gardens can be used by homeowners who want to add a splash of color and old-fashioned charm to their home's exterior, or by apartment dwellers without access to a full-sized garden. Window boxes can be assembled from either new or scrap lumber. Add a liner to the box, or fill with self-watering pots, to avoid the need for frequent watering.

Step 1

Cut a 1 by 6 into two 34-inch-long pieces to form the front and back of the window box. Cut a second 1 by 6 at 32 inches long for the bottom of the box. Use the leftover wood to make the sides of the box, which need to be 6-inch by 6-inch squares.

Step 2

Angle the front of the box outward buy cutting the end pieces at an angle. Use a pencil and straight edge to draw a diagonal line from the bottom corner to a point three-quarters of an inch from the top corner. Only angle one side of the square--the back of the box will be straight to mount flush to the wall. Cut on the line.

Step 3

Use wood glue to join the ends to the sidepieces. Secure with finishing nails. Glue and secure the bottom of the box last.

Things You'll Need

  • Three 1 by 6 boards, 4 feet long
  • Wateproof wood glue
  • Finishing nails
  • Hammer
  • Saw
  • Drill
  • Pencil
  • Straight edge
  • Measuring tape


  • Lowes: Build a Window Box
  • Popular Mechanics: How to Build a Wooden Window Box for Flowers
  • University of Alaska Extension: Window Boxes
Keywords: build a window box, container garden, build a plant box

About this Author

Denise Bertacchi is a freelance writer with a degree in journalism from Southeast Missouri State University. She is a St. Louis suburbanite who has written for the St. Louis Post-Dispatch, Boys' Life, Wisconsin Trails, and Missouri Life.