Floor structure for vehicle

A floor structure for a vehicle includes: side sills, extending along a vehicle front-rear direction on outer sides in a vehicle width direction of the vehicle; a floor panel, disposed on inner sides of the side sills in the vehicle width direction, and including a panel section disposed below a cabin and a flange section joined to the side sill; and a floor cross member, disposed at a rear end of the floor panel in the vehicle front-rear direction. The panel section includes: a front panel section; and a rear panel section. The flange section is formed with a joggle section, and a rear end of the joggle section corresponds to the front panel section in the vehicle width direction. The floor cross member is sandwiched and joined by the side sill and the flange section at the joggle section and a first joint section is formed.