PROBLEM TO BE SOLVED: To provide a floor member for installation as it is capable of forming a floor surface without any fixing by nailing, adhesion, etc. ;SOLUTION: A rabbet joint connection part 1 fitted and connected to both ends in the width direction of a floor member A to each other is arranged, the rabbet joint connection part 1 is formed of an upper engaging means 2 comprising a projecting bar 2a and a thin bar 2b hooked to and engaged with each other, and a lower locking means 3 comprising a projecting bar 3 and a groove bar 3b hooked to and locked to each other, the adjacent floor member A is inclined and turned in the engaged condition of the upper engaging means 2, the lower locking means 3 is locked immediately before the floor member is in a horizontal condition, and a series of floor members A are connected to each other in the width direction to enable the installation as it is.;COPYRIGHT: (C)2000,JPO
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