Amazon.com: Online Metal Supply 304 Stainless Steel Sheet .035" (20 ga.) x 12" x 18" - #4 Brushed Finish : Industrial & Scientific
Amazon.com: FengYoo Perforated Metal Sheets Perforated Stainless Steel Sheet -Sheet Metal with Holes-20GA 0.4 Inch Hole 11.8 Inch X7.8 Inch-Suitable for Ventilation Smoking and Decorative Screen Style Grilles : Industrial & Scientific