VEHICLE BODY FLOOR STRUCTURE

PROBLEM TO BE SOLVED: To provide a vehicle body floor structure capable of suppressing the rusting of a metal cross member and enabling the easy installation of an under-cover on a vehicle body. SOLUTION: This vehicle body floor structure 11 includes: a tunnel section 16 forming the center section of the floor of the vehicle body 13 and extending in the longitudinal direction; the right and left floor panel sections 41, 42 arranged continuously with the tunnel section 16; the right and left floor frames 32, 33 installed on the outer surfaces 46, 47 of the rigth and left floor panel sections 41, 42, respectively; and the right and left side sills 27, 28 installed on the outsides of the right and left floor frames 32, 33 and forming the outermost side of the floor. The vehicle body floor structure further includes the under-cover 21 for covering the outer surfaces 46, 47 of the right and left floor panel sections 41, 42; and the cross member 51 which connects the right and left floor frames 32, 33 and the lower section 48 of which is covered by the under-cover 21. COPYRIGHT: (C)2009,JPO&INPIT