Shim shingles are a necessity in any building project that requires material to be leveled or made plumb and square. These convenient packs are small enough to store anywhere but contain enough shims to do the job. Made from durable western red cedar, these shims are durable and resistant to bug infestation. They are solid pieces of cedar and just the right length - 18 In. - to work with any project. They snap easily when required to and the entire shim may be utilized eliminating any waste.