A rotating mold roll defines an array of molding cavities. The mold roll is positioned adjacent a pressure device to define a pressure nip. At least one of the mold roll and the pressure device define a molding recess that is larger than the molding cavities. Resin is introduced to the rotating mold roll and pressed into the molding cavities and the molding recess to form discrete projections and a series of discrete, longitudinally spaced apart structural features. The projections and structural features are carried on a continuous sheet-form base. The resin is removed from the mold roll to expose a continuous preform sheet including the base, the projections, and the structural features. The structural features are arranged along the preform sheet in a longitudinally repeating pattern. The preform sheet is separated into multiple discrete products including an array of the projections and at least one of the structural features.