Unbranded 18 in. Cedar 10/10 Undercourse 2 in. to 12 in. W in Wood

Product Description. These Eastern Cedar shingles are 16 in. L and vary in width from 2-1/2 in. to 4 in. This shingle has unlimited defects, flat grain and sapwood. Knots on these shingles can be loose or open. This is a utility grade shingle for under coursing of double coursed sidewalls and starter shingles for walls.Traditional use of 10/10 under course shingle is as a starter course under and A, B or C grade sidewall shingleDo not use for exterior siding or roofingEasy to breakNatural oils of the cedar protect against insects and decayCan be painted or stainedNote: Product may vary by store.California residentssee Prop 65 WARNINGS