How To Build A Window Box Planter. The depth and height should be large enough. Place bottom of window box flat.
Use empty aluminum soda cans or pine cones to fill the bottom of these planter boxes without adding a lot of weight. The box needs two small boards to act as ends for the box. Once youve decided on your design plan the next step is to get to work- measure and cut.
If you are going to place a long plastic planter in the box rather than plant directly in the box go to the store and buy your planters now.
With these measurements cut your bottom board using a saw. Cut 2 x 4 pressure-treated lumber into three 3 8-long pieces. Lay another board smooth-side-down next to this one to form an L shape. How to Build a Window Box Planter 1.
