To provide a carpet of improved workability without requiring skillfulness to be easily executed and easily replaced.

This carpet comprises a carpet main body 1 provided with nonwoven fabric 1e to be detachably engaged with male side locking protrusions 2b of a surface fastener on a back surface, and plural fixing piece members 2 comprising a surface fastener provided with the male side locking protrusions 2b on the back surface to be bound and fixed to a construction floor surface on the back surface, the fixing piece members 2 are bound and fixed to the construction foor surface in proper disposition, and the male side locking protrusions 2b of the fixing piece members 2 are engaged with the nonwoven fabric 1e on the back surface of the carpet main body 1, thereby the carpet main body 1 is placed and fixed to the construction floor surface.