To provide a wood club head which eliminates the worry about the durability of a clubface and with which the great deflection of the clubface may be obtained even when a ball is hit off its center.

The back side of the clubface is so formed that the thickness of the face decreases stepwise from the central segment of the clubface toward the periphery. The centroids of at least ≥2 face backs among the face backs constituting the respective steps are offset by proper amounts from each other and at least ≥1 face backs forming the respective steps are provided with projecting ribs changed in the geometrical moment of inertia in their longitudinal direction.