CONSTRUCTION METHOD OF DECK FLOOR

PROBLEM TO BE SOLVED: To provide a construction method of a deck floor with high economical efficiency, capable of achieving construction for easily changing a floor size with the presence of an appropriate water discharge gap between respective deck materials by as few materials and as low labor cost as possible.SOLUTION: Two kinds of deck materials 1, the one to which a fixture 2 with overhangs 2b and 2b erected on the outer side of both ends of an attaching part 2a and projection pieces 2c and 2c erected at the upper part is attached by an attaching member 3 and the one to which the fixture 2 is not attached, are prepared. A deck material column B is configured by attaching the deck material to which the fixture is attached and the deck material to which the fixture is not attached side by side so that the end part of the deck material to which the fixture is not attached is mounted on the overhang of the fixture of the deck material to which the fixture is attached and abutted to the projection piece. By engaging a connecting material 4 at the front and rear end parts of the deck material column and fixing the connection material and a plurality of parts of the deck materials by a fixing member 5, a deck floor A is installed to an installation surface 6.