The Interchangeable Big Window Base DIY Kit is the foundation piece for our Interchangeable Window Collection. This beautifully designed arched window base stays on display year-round while you swap out seasonal and holiday trio inserts in front of it—making decorating simple, space-saving, and endlessly customizable.
With its classic arched window shape and neutral design, this base works seamlessly with every trio insert in the collection, from everyday décor to holidays and seasonal displays.
How the Interchangeable System Works
The arched shape window base remains the same
Seasonal and holiday trio inserts sit in front of the window
Easily swap inserts without changing the base
Create a new look for every season with one simple switch
This listing is for the interchangeable window base only. Trio inserts are sold separately.
DIY Kit Details
Laser-cut wood DIY kit
Classic arched window design with grid detail
Layered construction for stability and depth
Unfinished wood ready to paint, stain, or seal
Simple assembly using super glue -not included
You Will Receive
Unfinished wood kit
Compatible With
All Interchangeable Trio Inserts in the collection, including:
Everyday décor
Seasonal designs
Holiday and themed trio inserts
Perfect For
Year-round home décor
Tiered trays, shelves, and mantels
Craft nights and workshops
Interchangeable décor collections
Makers who love customizable DIY projects
Please Note
This listing includes the window base only
Trio inserts shown in photos are NOT included
Paint, glue, and embellishments are not included
For decorative use only
Material is hdf - high density fiberboard and laser marks are normal
Pro Tip
Pair this base with a few of our starter inserts—such as Home Sweet Home, Christmas, or Seasonal Favorites—to build an interchangeable décor system you’ll enjoy using all year long.
