Mastic Home Exteriors by Ply Gem creates the look of real cedar shakes with its Passage Shake and Shingle Siding line. The vinyl siding is available in single 7-in. perfection shingle or single 9-in. hand-split shake. Available in 30 colors featuring the Kynar 500 protection process, the shake and siding line includes four variegated cedar colors that replicate the natural grain and shading of stained wood.