Bottom: 3/16" 5086 high tensile aluminum sides: 1/8" 5086 high tensile aluminum: transom: 3/16" 5086 high tensile aluminum: deck sheet: 1/8" 5052 high tensile aluminum. Alumaweld boats, inc. 1601 avenue f white city, oregon 97503. phone: 541.826.7171 fax: 541.830.6907 toll free phone: 800.401.2628 (boat). Boats and boat parts. free classifieds, buy and sell used stuff in pei, pei.