L-Shaped Window Seat with Built-in Storage

 Write Review

createandbabble added on 9/18/2017

Instructions on how to build a custom-sized window seat with built-in storage. Use your measurements and my tutorial to quickly and easily build a window seat customized for your space.

Remember: the length of your window seat(s) will differ from mine. Cut your wood according to your specs.


Follow the steps below to complete this project.


Cut wood

The dimensions that I used for the seat height and depth are standard. The length however will be different for each window seat. Keep this in mind when you are purchasing and cutting the wood.


Build Frame

After all wood is cut to size, begin construction of the window seats by drilling pocket holes in the ends of each board and assemble using wood glue and 2-1/2" pocket screws.


Install Frames

I removed the baseboard where the window seat would be placed against the walls. I did not secure the framing of the window seats to the walls or floor. While it has the look of being "built-in", it is removable.


Hinged Lid

On a table saw, cut each lid piece at 3-1/2" inch on the 48" long side. Nail the 3-1/2 pieces to the back of each window seat with a brad nailer.


Cut Hinge

Cut the hinge to length needed with a reciprocating saw (metal cutting blade).


Mark placement of hinge

With hinge placed upside down between the two pieces of lid material, use a pencil (or pen) to mark the screw holes. This will determine exact placement of hinge.


Hinge (next step)

Flip hinge over and tape into place, lining up holes with markings. Use power drill to drive screws.


Cover frame

Using a brad nailer, attach 1/4" sheets to frame. I painted my plywood first. The brads will be covered up with the trim pieces so there's no need to fill and sand any holes left by the brads.


Attach trim

Using the brad nailer, attach the pre-painted trim pieces. Miter cut any outside corners. Fill holes, sand, and touch up paint as needed.



Use purchased cushions, pillows, and throws to personalize your new window seat. I have chosen to buy 3" foam and make cushion covers. Please visit https://createandbabble.com/ for an upcoming tutorial on making cushions and covers in an upcoming article. I will also list the sources for the accessories shown in the final project photos.

Tools Used:

Materials Required:

Wood Products:

(4) 1x4, 72", Board  
(3) 1/2" Thick, Quarter Sheet, Plywood  
(3) 1/4" Thick, Quarter Sheet, Plywood  
(8) 2x4, 96", Board  
(4) 1x4, 72", Board  


Parts/Cut List:

(8) top and bottom rails, 2" x 4" x 53"  
(8) end rails, 2" x 4" x 10"  
(16) braces, 2" x 4" x 15"  
(2) lids, 1/2" x 53" x 18"  
(12) trim pieces, various  


https://createandbabble.com/ Visit


You must log in to add comments


    Become a Member


    • Connect with the BuildSomething Community
    • See what others build and share your stories


    • Find inspiring ideas for your projects you can build
    • Get the step-by-step plans you need to succeed


    • Turn your projects into professional-looking plans
    • Share your plans you create on buildsomething.com



    Already a member?
    Sign in!

    Kreg Tool