Builder's Challenge: Flowerboxes
1-2-3 Project
World's Simplest Flower Box
Here's about the easiest way to build a sturdy flower box. Like the readers on the previous pages, show us what you can do with this simple design. Send your photos and a short note about your creation. We'll share the most clever in upcoming issues and on our Web site.
Flower-Box-Building Tips
- Our box is made of 1- by 6-inch cedar, but you could use cypress, green treated wood or any other lumber that resists rot. If using cedar, face the smooth side to the inside, which allows for better drainage and easier clean-out.
- Make the ends of the window box with 2-inch-thick scrap lumber. The thicker wood adds strength and durability.
- Generally, window boxes are the same width as or slightly wider than the window. Give boxes adequate support; they're heavy when wet. Never mount directly to wooden window frames...or you'll be replacing windows in a few years.
- Take your time when working with power tools, and wear protective glasses.
- Cedar left unstained will gradually weather to gray. If you want to preserve its natural color, apply a clear cedar sealer, or change the color with tinted deck stain.
Three Simple Steps
- Predrill all the holes approximately 3/8 inch from the edge. Drill all the way through the top board and partway into the board below. Be sure to predrill holes into the thicker end pieces, too, as cedar splits easily.
- Nail the box together. You want to start by nailing the longest sides to the bottom board, using 2-1/2-inch galvanized finishing nails.
- Drill 1/4-inch drain holes in the bottom in a random pattern 2 to 3 inches apart. Be sure to position a hole near each corner so water doesn't get trapped. Weed barrier can be laid inside to keep potting soil from draining out the holes.
In this Story
- Builder's Challenge
- World's Simplest Flower Box