"These wood planks come in sugar maple, cedar, black cherry, and golden alder. aFire uses a 'shelter wood' method for harvesting their grilling planks: Trees are only cut if they aren’t promoting a healthy forest ecosystem, and if cutting them will provide more light for lower-level plants.' Set of four grilling planks at Provisions, $26.  Photo 5 of 10 in Cooking Expert-Approved Kitchenware from Provisions