Stephensons’ Longitudinal Rib design called for strips of cedar running lengthwise fastened to ribs running gunwale to gunwale on the interior. Even though his original patent called for tongue and groove edge relations, these canoes always seems to have been built with rabitted (shiplap) edges. His design became the most common all-wood canoe construction and is referred today as Longitudinal strip or even “cedar strip”.

Pictured above is a Lakefield longitudinal strip.