You can buy pre-made pads made out of stove insulation foam or heavy duty aluminum foil laminate in most home improvement stores. They are usually sold by their thickness and widths that range from 24-48. You can also have a custom pad made for you by a local cabinet maker or home improvement store. If you want to make your own hearth pad, there are many materials that you can use such as: – Ceramic tile – this is a good choice if you want a permanent hearth pad. Concrete – this works well if you want to build a pad that is larger than what’s sold in stores and it's also less expensive, but harder to work with. Stone or brick – another option if you are looking for something permanent.