Cedar Window Boxes

3 Materials
1 Hour

Give your house a little face lift in a cheap way! Window boxes are an inexpensive way to add some character to the outside of your home. I lay out all of the steps here for you. But if you would like to see step by step videos of me building these you can visit instagram.com/frommhouselove and see my highlights bubble on the cedar boxes!


I made these window boxes out of 6 foot cedar fence posts. There is definitely more expensive cedar boards you could buy to make these boxes, but with a little sanding these cedar boards are beautiful and cost effective. Each board is around $3 at Home Depot. You could also use pine boards if you want to paint your window boxes.


First I measured the width of my window and then added two more inches because I wanted the window boxes to stick out one inch on each side. You could add even more width to each side to give more of a dramatic look. Each window box takes 3 cedar posts. One for each side and one for the bottom (then some scraps for the ends of the box). Once I had my cuts made according to the lengths of the window, I started making the box with the front, back, and bottom.

Since I was using faux plants in these window boxes, I didn't need to secure them with screws. I used wood glue and a brad nailer to attach all of the sides. Once I had the front and back secure, I measured the distance between the two boards to find my measurements for the end boards. I attached these end boards with wood glue and brad nails as well.

And that's it! Pretty easy, quick process for such a cute addition to the house. You can finish these off by sanding them and adding a spar urethane to protect the cedar.

I filled my boxes with faux greenery to make the upkeep a little easier! Now, go give it a try yourself.

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Frequently asked questions

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  1 question
  • NancyMaria NancyMaria on Aug 05, 2020

    What about drainage? How are they attached to the house? Otherwise they look nice.


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