Skip to Content

DIY Window Boxes – Window Flower Planters

Window flower box planters add charm and character to your home. I have been dreaming about how to decorate my window planters for each holiday and season. However, before I get ahead of myself, I would like to share how to build window boxes quickly.

I knew I wanted to make my little studio so charming I would like to spend all my time out there. It had woodpiles, bags of Quickrete, empty flower pots, and tools on the porch and stacked up along the outside walls. It was an eyesore.

Window Flower Box

Window Flower Box

How to Build a Window Box

Mr. Kippi built me an Adirondak chair and an obelisk for my little secret garden next to my studio. I stood back and looked at the prototype obelisk and chair with the window and old rain gutters. At that moment, I knew the window needed some finishing touches to add beauty. I wanted everything to coordinate with these other outdoor home improvement projects; trellis, lanterns with solar lights, garden hose holder, so the white window got natural wood shutters, and a window box to add to the home’s curb appeal.

My inspiration for the window box was the chair and obelisk

My inspiration for the window box was the chair and obelisk.

This post contains affiliate links. That means that if you purchase from one of these links, I will make a small commission, but rest assured, you will not pay more for any products.

I searched for inserts for the window boxes. Those inserts would determine the size of the window boxes could be. I choose this window box insert since they had a drip tray. My friend  Rachel build this cute window box, that I adore, so I wanted one too.

Supplies and Tools

Planning 

The first thing you will need to do is measure your insert and write down the height, width, and length. Note: take the measurements just under the upper lip of the insert if yours has one. Cut your (1 x 6 x8) lumber to accommodate those measurements.

Cut lumbar and flower box insert

Cut lumbar, and the flower box insert.

 

Box lumber cuts

Box lumber cuts

Glue the end pieces

Glue the end pieces

 

Glue on ends

Glue on ends

 

Nail ends in place

Nail ends in place

Glue the front panel

Glue the front panel

Nail front panel

Nail front panel

 

Measuring to be sure the box is square

Measuring to be sure the box is square

Adding the first piece to the bottom

Adding the first piece to the bottom

Adding the second piece to form the bottom

Adding the second piece to form the bottom

Installing Trim

Taking measurements for trim

Taking measurements for trim

 

Use a chop saw to cut trim pieces

Use a chop saw to cut trim pieces

Glue on trim

Glue on trim

Nail trim pieces in place

Nail trim pieces in place

Finished DIY flower box with insert

Finished DIY flower box with insert

Checking the insert before water sealing and filling

Checking the insert before water sealing and filling

Drill drain holes in the bottom of the box

Drill drain holes in the bottom of the box

Three drain holes

Three drain holes

Installing Window Flower Boxes

Pre Drill 3/4 by 1 inch board for hanging

Pre Drill 3/4 by 1-inch spacer board for hanging

Install spacer

Install spacer

Holding the flower planter box to be sure on the placement

Holding the flower planter box to be sure of the placement

Marked and pre drilled holes for mounting screws

Marked and pre-drilled holes for mounting screws

Inserting the Flower Box Liner

The window flower boxes are on opposite sides of the studio, so they needed different plants since one was in the shade and the other one got a ton of sun (Florida sun). You can see how I choose the flower plantings HERE.

Adding the insert with flowers

Adding the insert with flowers

Watering the planter after I filled it with flowers and plants

Watering the planter after I filled it with flowers and plants

You can see the area behind the obelisk; it needs a trellis with a garden planter and lanterns. You can see how we built those gorgeous trellises HERE. I will be sharing how to make shutters, Adoranik chairs, and the obelisk with solar lights.

The new custom rain gutter looks so much better. I did not notice how awful the rain gutters looked until I installed the window box and shutters. I called and ordered the rain gutter and downspout over the phone and had them delivered. It was the right decision to replace them.

Studio garden area

Studio garden area

This window box adds beauty both indoor and outdoor since I can see the flowers from inside too.

🌻Do you enjoy a beautiful garden and yard? Please join me HERE for everything you will need to create a beautiful garden/yard one project at a time. 

 

My custom made chair with a fresh mojito

My custom made chair with a fresh mojito

I created a DIY side table from a fallen tree. We also made some super groovy live edge hairpin leg tables you are going to love. You can see them in this post. The vintage-style pot with the transfers can make one, too, in this earlier post.

Side table made from a fallen tree

Side table made from a fallen tree

DIY Adirondack chair

DIY Adirondack chair

DIY Chair, table, window box and obelisk

DIY Chair, table, window box, and obelisk

 

If you love flower boxes and window box planters, you will enjoy building some and installing them on your home too.

You might also enjoy these other outdoor projects:

DIY Wood Shutters

Attaching wood shutters to the house with a drill

DIY Shutters

DIY Garden Trellis for your garden.

Lantern and Garden Screen Trellis

Lantern and Garden Screen Trellis

Learn how to Build DIY Lanterns with Solar Lights.

Handmade solar lanterns at night, easy to make, learn how...

Handmade solar lanterns at night

Hose holder with solar light.

Finished deck and garden hose hook post

Finished deck and garden hose hook post

Learn to craft concrete outdoor projects with Quickrete. 

Boho chic hanging planter

Boho chic hanging planter

Step by Step, hanging planters.

Hanging Basket Step by Step Guide, grab your copy today

Hanging Basket Step by Step Guide

Thank you so much for our visit today.

See you soon,

Kippi

 

See More Build it Cheaper Than Buying It Projects.
 

 

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Marie

Wednesday 2nd of June 2021

This is adorable! I have been contemplating adding a window box to a window on our backporch, but worry it will look weird to only have the one.

Danny

Saturday 10th of April 2021

Excellent execution! Beautiful work. Enjoy!

Jeanne

Monday 8th of March 2021

What a stunning before and after!

CoCo

Wednesday 27th of May 2020

These flower boxes are totally fabulous, Kippi! I love how you can take the flower tray in and out. That is genius and so convenient too! Everything about your studio space is so inviting. I just love it! Hope you're having a great week, hugs, CoCo

Linda

Wednesday 27th of May 2020

I'm so excited you've been PINKED! Thank you for sharing on the Classy Flamingos. http://blog.poinsettiadr.com/2020/05/classy-flamingos-blog-party-104.html

This site uses Akismet to reduce spam. Learn how your comment data is processed.