Northern White Cedar is one of Nature's small miracles. It is naturally insect, flea, and rot resistant it naturally regenerates and it lasts 15 to 20 years untreated (Data by Forest Service, U.S. Department of Agriculture.) Northern White Cedar is not prone to splintering. And if left unfinished, will age to a silvery gray, silky smooth surface. Northern White Cedar is excellent for indoor, outdoor, and ground contact applications. It is nontoxic, safe to handle, and can be safely burned. Northern White Cedar has no chemicals added, so none can leach out. NORTHERN WHITE CEDAR DOES IT NATURALLY.