For your cedar shake roof, the Number 1 Tapersawn shakes are like shingles but the cut is thicker and both faces are sawn. Your cedar shake roof will have the naturally tailored look of a shingle but is complimented by the sharp shadow line caused by the thicker butt. The Tapersawn is the most popular wood roof in the West Coast of British Columbias and is rapidly growing in popularity in the rest of Canada and the USA. It is cut from clear heartwood, with no defects. This cedar shake is 5/8" or 3/4" thick at the butt and is cut in two lengths - 18" and 24". On 4/12 or steeper pitched roofs, it is applied at 7 1/2" for an 18" board and 10" for a 24" board. For all your natural roofing products, call Valley Lumber Sales, Inc. at 865-693-1600 or toll free at 1-800-251-9838. We are sure to find a version that will fit your material needs and give you years of service. Print out a copy of the details on all shakes and shingles to have for reference when you go to buy.