American made 12 gauge steel fully welded

 

Bottom square is 12x12 top square is 8x8 4.5" tall

 

Fits 22.5 kettle

 

Perfect for creating a offset zone around the perimeter and the center can be used for high heat searing directly over the coals

 

These are not thin steel the steel is .105" thick (thicker than your kettle ) and are made to last.