Deck element system and method for installing the system

A layered deck system comprising in combination, a plurality of deck elements and a plurality of installation planks for installation on a deck base, each of said deck elements comprising a base layer and an upper layer, said base layer comprising a base plate defining substantially the planar dimensions of a deck element and said upper layer comprising at least two deck element planks, each of said planks being fastened on the base layer, each of said deck elements further comprising a pair of longitudinal edges, and a pair of end edges substantially perpendicular to said longitudinal edges, said pair of longitudinal edges adapted for receiving an installation plank, and said pair of end edges provided with means for receiving an adjacent deck element to accomplish direct joint connection between the two deck elements, said pair of longitudinal edges having protruding lower ledge portions configured to face in a spaced-apart position a protruding lower ledge portion of another deck element, said installation planks having longitudinal edges with protruding upper ledge portions resting on and substantially covering the protruding lower ledge portions at the longitudinal edges of said spaced-apart deck elements, each of said installation planks having substantially the same visible surface dimensions and appearances as each of the deck element planks, at least said installation planks being provided with means for securing said installation planks against the deck base and thus securing said deck system on the deck base, the deck element planks and the installation planks having upper deck surfaces which form the visible surface of the deck system.