Lots of denim ideas here:

https://www.pinterest.com/patriciaunderhi/denim-hotpads/

Cut the denim to the size you want. Place 2 pieces right sides together and put a layer (or 2) of quilting batting on top. Sew around 3 sides and a little on the 4th side. Turn right side out, press , slip-stitch the opening, and top stitch all the way around.

Hi! Maybe this will help

https://weallsew.com/upcycled-denim-hot-pads/

These are really cute. https://www.hometalk.com/14049205/how-to-crochet-denim-trivets-with-denim-yarn

How to Crochet Denim Trivets With Denim Yarn

I would sew them together in a square with quilting batting between the pieces.

Here is a video tutorial:

https://www.youtube.com/watch?v=_2tdS9zY7wY

Hi this is Peggy. I hope this video helps you make your denim hot pads. Search Results

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Just need enough material to ensure heat is blocked.

If hot pads are to protect counter from hot pans, then I would buy a tile and put rubber feet on the bottom.

Hello, hope this helps you out,

https://www.youtube.com/watch?v=68NARveUl-E

https://www.youtube.com/watch?v=_2tdS9zY7wY

Denim can be used for the outside layers if that is the fabric you have your heart set on. The inside of the pad though should have a least one layer of heat resistant fabric to help protect the surface it is sitting on.

https://burlapfabric.com/index.php?main_page=product_info&products_id=2118&gclid=Cj0KCQiAvP6ABhCjARIsAH37rbRFc-dUy9uFnJFf-

BR8efLE26venirACNas_cr766lYWE_Sdb4akBIaAl8zEALw_wcB https://burlapfabric.com/index.php?main_page=product_info&products_id=2117