Grill-N-Flavor Maine Oval Cedar Planks - Free Shipping! Natural oval cut planks impart much more of the natural flavor vs. traditional rectangle planks. 100% Natural Maine cedar with NO chemicals, additives, or preservatives. Entree size planks will not only enhance flavor, but presentation as well. Simply soak your planks for about 2 hours, lightly coat with olive oil, add salt, pepper, and garlic to whatever you're cooking and set on the grill until done. You'll be amazed how this will transform your dish!