Wood shakes and shingles are manufactured from western red cedar, cypress, pine and redwood trees. Shakes are split from logs and reshaped by manufacturers for commercial use. They are thicker at the butt end than shingles. Generally, one or both surfaces are split to obtain a textured effect. A split and resawn shake has a split face and sawn back. A taper sawn shake has a natural taper and is sawn on both sides. Wood shingles are sawn on both sides and have an even taper and uniform thickness. In reference to shingles, the industry terms "Perfection" and "Royal" mean 18-inch and 24-inch lengths, respectively.
Cedar shakes and shingles are available pressure treated with fire retardants and chemical preservatives. This increases fire resistance and prevents premature rot and decay in some climates. Pine shakes are made from southern yellow pine and are taper sawn. They also are available pressure treated with preservatives to protect against decay and insects. Interlayment felts are required for pine shakes.