by susan duane
Materials:

1-by-8-by-10-foot plank in #2 pine (this is what I used)
Pair of saw horses (I used two old benches)
Tape measure, T square and hammer
Drill with large bit
Nails (I used #6 penny-finish nails)
Circular or hand saw
Primer, paint and brushes
Metal or wood brackets (available at home improvement stores)
Flower Boxes
Step by Step

1. Measure your window and determine the length of your flower box. Mine was 30 inches. Measure and mark with a pencil.

This grade pine is the least expensive, but it has a few knots in the wood — with a little paint they can be camouflaged. You can always use the premium pine, but the cost for the same size plank is about three times as much.
Flower Boxes
Use the square to make sure your line is straight, and mark it in pencil.
Flower Boxes
2. Saw along the line.

Your local lumber yard or Home Depot may be able to make straight cuts for you. If you have the dimensions, a pencil, tape measure and square, all you have to do is make all your markings and have someone cut the wood.
Flower Boxes
Use the first piece as your template for the next two. You should end up with three pieces of the desired length, one for each long side and one for the bottom.
Flower Boxes
3. Nail the sides to the bottom. It's much easier if you start the nails before putting the pieces completely together. This way, you have to hold the pieces together only while hammering them in, and you don't have to worry about holding the nail in place.
Flower Boxes
The nails I used have small heads. When they're hammered in, they aren't too noticeable.
Flower Boxes
This is what you'll have after attaching two of the boards you just cut.
Flower Boxes
Do the same thing to attach the other side.
Flower Boxes
4. With the leftover piece, measure and mark the short end pieces.
Flower Boxes
Again, use the T square to make sure the line is even. Draw your line and use the piece as a template for the other end.
Flower Boxes
5. Start your nails as you did before and nail in each end.
Flower Boxes
6. Drill drain holes. Using a ⅜-inch drill bit, drill at least three holes in the bottom of the box for excess water to drain out.
flower box project
7. Add finish. If desired, prime and paint the box in the color of your choice.

Optional: If you want to make your own brackets, you'll need:
  • Additional wood
  • Scroll saw
To create a more detailed box, you'll need:
  • Router
  • Decorative molding
flower box project
8. Line the box with clear plastic. Staple lining into place to prolong the life of the box.
Flower Box
9. Fill your new box with potting soil. Choose a loose soil, the same type you'd use for a pot or other planter, from any home improvement store or nursery.
by susan duane
10. Hang it! Here is my finished box. I did this project during the winter. Come spring it'll be filled with beautiful and bright blooms.

Tell us: Do you have a window box or a place for one? Please share a photo below.

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Comments

Villa Lagoon Tile A window box of untreated softwoods like pine will be short lived unless it is encapsulated in paint or sealed totally in some way.
Usually a galvanized liner is made for window boxes to the shape of the planting area w/ drain tubes that extend thru the drilled holes in the wood. or..One might slow down the rot by adding a rubberized liner w/ tubes to drain out the holes.
The idea is that the liner drain tubes extend thru the holes so the drain water doesnt just seep between the liner bottm and the wood.
Another option is to buy a rectangle plastic planting container and paint it so it doesnt look so 'plasticy' and set it on nice looking brackets. I've done this to good effect.
15 months ago · ·
Boutique-de-la-Mer.com Love this - just what I was looking for. Want to build some for the front of our beach cottage.
15 months ago ·
Audrey Hennefer And this is what they can look like next summer!
14 months ago · ·
Brooke Collins I can't wait to do this! Thanks for the simple but detailed tutorial!
14 months ago ·
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