Cedar Shake & Shingle Bureau offers a range of Certigrade Shingles for sale in both untreated and treated options. This type of smooth, sawn architecturally uniform cedar shingle is preferred for its natural and tailored appearance and is used on traditional and modern residential and non-residential structures. For use on roofs and sidewalls. Our field staff proudly represents the Cedar Shake & Shingle Bureau to builders, contractors, architects, homeowners, code officials, National Park Service staff, and many more. They bring decades of experience and expertise in installing shake and shingle, aesthetics, and technical matters to provide maximum assistance to CSSB Members and their customers. They are offering the best in Certi-Wood service.