Cordierite-mullite kiln shelf.
- Small: 15.5" (394 mm) diameter, 1/2" (16 mm) thick. This is the recommended size for 8-sided top-loading kilns like Euclid's R-85.
- Large: 21" (533 mm) diameter, 3/4" (19 mm) thick. This is the recommended size for 10-sided top-loading kilns like Euclid's R-153 or R-200.
The low-expansion property that allows this shelf to withstand repetitive kiln firings also applies to lower temperature applications. Kiln shelves make excellent pizza stones!