Image Item No. Description By  88292  Arch 1 x 3 x 2 Catalog: Parts: Arch 1  3455  Arch 1 x 6 Catalog: Parts: Arch 1  92950  Arch 1 x 6 Raised Arch Catalog: Parts: Arch 1  3307  Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Catalog: Parts: Arch 3