Luckapen via eBay offers this Non-Stick Reusable BBQ Grill Sheet 2-Pack for $2.52 with free shipping. Excluding other eBay sellers, that's the lowest total price we could find for two comparable sheets by $7, although we saw them for a few cents less a week ago. This set includes one 15.75" x 13" sheet and one 13" x 9" sheet. Each dual-sided sheet can be used for indirect cooking on gas, charcoal, or electric grills.
Note: This item ships from China and has an estimated delivery time of two to seven weeks.