Abstract: An embodiment vehicle body includes a side sill coupled to a side of a vehicle floor and extending in a front-rear direction of the vehicle body, a coupling member coupled to a top of the side sill and having a coupling groove penetrating in an up-down direction, and a pillar member extending in the up-down direction such that an upper end portion is connected to a roof and a lower end portion is inserted into the coupling groove and coupled to the coupling member.

Abstract: An embodiment vehicle body includes a pillar member including an upper fastening portion at an upper end and a lower fastening portion at a lower end, a roof side coupling portion provided in a roof member extending in a longitudinal direction of the vehicle body, wherein the roof side coupling portion is configured to be coupled to the upper fastening portion by insertion coupling, and a side sill side coupling portion provided in a side sill member extending in the longitudinal direction of the vehicle body, wherein the side sill side coupling portion is configured to be coupled to the lower fastening portion by insertion coupling.