The Duffy 26 hull is molded in solid Fiberglass Reinforced Plastic witha vinylester skin layer and full length longitudinal foam cored stringers; the hull is white gelcoat. The solid fiberglass skeg and full keel protect the propeller. PVC spray rails are through-bolted and glassed on the interior.
The interior deck and seating are a single mold in FRP with foam coring. All deck, step, and seating areas are molded; the surfaces are white gelcoat and the non-skid painted a light gray.