Skip to Content

Make It: Window Flower Box

Learn to make a DIY window flower box to brighten up your windows.

Window Flower Box
I don’t know about you, but I love window boxes!

Seeing fresh flowers in front of windows as I drive by a house makes me so happy.

The thought of the person inside waking up and seeing those flowers first thing in the morning… it must be a glorious sight!

I’ve always wanted window boxes, but haven’t really seen any store bought versions that made me giddy.

For my patio makeover, I thought that making my own window flower box to complement my new shutters would be a fun project.

And I’m here to today to share the plans with you!

Potting shed makeover before pic
I know I’ve been showing this photo a lot, but it is just such a dramatic change from the before to the after that I have to keep sharing it!

In case you haven’t seen this photo before, its the exterior of my potting shed pre-makeover.

Window Flower Box plans
I’ve drawn out the plans for the window flower box to make it super simple to reproduce.

You will need:
2 1×6″ boards measuring 36″
1 1×4″ board measuring 36″
2 1×4″ boards measuring 5.5″
3 bags of shims – trim 31 shims to 5.5″, cutting off the thin end

Make the Window Flower Box
Piece together the 1×6’s and 1×4’s to make the box using wood glue and nails.

This is going to hold so many pretty flowers!

Window Flower Box shims
Once the shims have been trimmed to 5 1/2″, use wood glue to add them to the front and sides of the window box.

As they are placed on the box, alternate which direction they go.

This will give the window box a fun contrast.

how to hang Window Flower Box
How you choose the to hang the window box may depend upon what you are hanging it on.

Wood, bricks, siding…

Mine is going to be hung on vinyl siding which is backed with wood. My husband cleverly built this frame for hanging the box using 1×2’s.

He glued and nailed 2 1×2’s measuring 24″ together, after first cutting the side of one of the 1×2’s at a 45 degree angle.

He then attached a second 1×2 measuring 24″ and also having a 45 degree edge to the back of the window box.

All of the 1×2’s fit snugly together where the wood is cut at 45 degree angles.

attaching Window Flower Box
We screwed the frame directly under the window frame and into the wood behind the vinyl.

It’s super secure and isn’t going anywhere.

staining Window Flower Box
I stained the window box with 1 coat of Minwax Dark Walnut stain followed by 3 coats of polyurethane.

I use Dark Walnut for a lot of my staining projects.

The deep brown color is my favorite!

Window Flower Box
Before hanging the box, I filled it with flowers and plants that would add height and hang over the edge.

The box can be easily set on the frame and removed later for changing out the flowers.

Window Flower Box
I love the way it looks with the red shutters!

And I purposely designed the window box to not stick out far from the side of the potting shed so that a chair can be set under it and the person sitting in it doesn’t have to worry about hitting their head.

And those shims?

I just love how they ended up looking on the window box.

Especially after staining!


>> See where I party! <<


This post was originally shared May, 2014.

You may also enjoy
potting shed makeover paint exterior light old drawer flower wood table top install rain barrel instant makeover paint door build brick patio diy shutters

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


Wednesday 24th of May 2023

Oh so beautiful! I love the innovative way of hanging it! Took me a few minutes to grasp the concept! 😆 I love the idea of being able to remove to fill.


Monday 25th of June 2018

This is great. Thanks for sharing at the To Grandma's House We Go DIY, Crafts, Recipes and More Wednesday Link Party. Pinned!


Tuesday 19th of June 2018

What a great project and it looks so pretty with the red shutters. Sharingl. Thank you for sharing on Merry Monday! Hope to see ya next week! Kim


Monday 18th of June 2018

Oh my goodness, I love this so much!! I've been considering adding flower boxes to my house. :) Pinning this for sure. Thanks for sharing with us at #MMBH!

Elise Cohen Ho

Friday 21st of July 2017

I think these are beautiful but our home is built in such a way that I do not think I will be able to utilize it here.

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