![](https://zannjones.com/wp-content/uploads/2021/04/image-53.jpeg)
![](https://zannjones.com/wp-content/uploads/2021/04/image-54.jpeg)
I decided to customize a couple of air duct grilles in my house. To provide the support for the artwork, I welded a steel frame using 1/8” thick by 3” wide steel plates. The steel frame would be attached to the wood framing behind the air duct sheet metal.
![](https://zannjones.com/wp-content/uploads/2021/04/image-55.jpeg)