The invention relates to a floating laminate floor board having first and second parallel long edges and first and second parallel short edges, comprising an upper decorative wear layer, a core layer arranged beneath the upper decorative wear layer, the core layer being made of a material that is not as hard as the upper decorative wear layer, a base layer beneath the core layer, a first mechanical locking system comprising a locking strip extending from one of the long edges of the board and a locking groove formed in the material of the core and extending along another of the long edges of the board, a second mechanical locking system on the first and second short edges of the board and an underlay mounted at an underside of the floor board. The locking systems are configured so as to releasably lock the board to adjacent identical boards in both a vertical direction and a horizontal direction.