Vehicle body floor structure

A vehicle body structure includes a cross member connected to at least one of a pair of side sill inners, extending in a fore and aft direction of a vehicle body at both ends of the cross member in a widthwise direction of the vehicle body, and associated with a lower surface of a front end of a floor panel at an area close proximity to a dash panel to form a closed cross-sectional section extending in the widthwise direction, and a floor reinforce joined to the dash panel, the side sill inner and the cross member at a front corner area surrounded by the dash panel, a front end of the at least one of the side sill inners, and a front wall of the end of the cross member to form a front corner closed cross-sectional section.