Engineered Wood Products, Exterior Cladding, Plywood Products, Shingles and Shakes, Siding, Soffit Systems, Wood Products. Cedar Valley Handcrafted Shingle Panels offer hand laid shingles with a wood lap siding installation. We start out with real Western Red Cedar shingles and hand apply them to a strong & stable plywood backer. We include a fiberglass matte between the plywood & shingles to provide additional protection from the sun ...