Floor structure in vehicle body rear part

Abstract

A floor structure in vehicle body rear part characterized as follows is provided. Specifically, a front end part o f a rear floor panel in a vehicle longitudinal direction includes a front wall part extending between a pair o f side sills. The front wall part is formed into an arc shape whose central part in a vehicle width direction projects upward in a vehicle front view. A lower end part o f the front wall part is joined to a rear end part o f a main floor panel. A cross member is formed into an arc shape whose central part in the vehicle width direction projects upward in the vehicle front view, and is arranged to extend along the front wall part with the central part o f the cross member in the vehicle width direction placed on a floor tunnel. End parts o f the cross member in the vehicle width direction are joined to the pair o f side sills and the main floor panel. The central part o f the cross member in the vehicle width direction is joined to the floor tunnel.