DIY interior storm windows you build yourself from these plans
Interior storm windows sit on the inside of your existing sash. They block noise, cut down condensation, and keep the room more comfortable, without touching the original window. These are the woodworking plans to build them yourself.
The plans walk you through it step by step. There’s a measurement calculation that turns your window dimensions into a cut list of parts, so you cut once and assemble. Most people can build one in a few hours.
Will it fit your windows
The plans are customizable and work for any size and type of window that has a flat interior surface 3/4″ deep or more to mount against.
Format
It’s a digital PDF download. You can download the file up to 4 times.
Frequently asked questions
Can you build your own interior storm windows?
Yes. These plans walk you through building interior storm windows yourself, step by step. A measurement calculation turns your window dimensions into a cut list of parts, so you cut once and assemble. Most people can build one in a few hours.
Do interior storm windows actually help?
Yes. Interior storms sit on the inside of your existing sash and block noise, cut down condensation, and keep the room more comfortable, without touching the original window.
Will these plans fit my windows?
The plans are customizable and work for any size and type of window that has a flat interior surface 3/4 inch deep or more to mount against.
What format are the storm window plans in?
It is a digital PDF download. You can download the file up to 4 times.
Building your own storms or screens? These step-by-step plans and guides from The Craftsman Blog show you how.
Watch the tutorial
How To: Build Interior Storm Windows
Drafty windows in winter? An interior storm window is a simple, low-cost fix you can build yourself. Scott walks through it step by step. These plans hand you the full build.
Related tutorials
From The Craftsman Blog
Guide to Storm Windows
Storm windows deliver big comfort and energy gains for a fraction of replacement-window cost — but first you need the right type. Scott's guide walks through the options. Essential reading before you build or buy, including interior storms.