This invention relates to a vehicle sawhorse adjustable assembly that comprising of an adjustable wing structure operably adapted to provide a support to a plurality of logs in a longitudinally extended direction on a rear end of a cargo bed extension of a vehicle, a plurality of legs to provide an adjustable height using a plurality of holes in a vertically upward direction to the adjustable wing structure, a removable hitching unit to provide a base support to the adjustable wing structure in an adjustable horizontal direction and a hinge mechanism to connect the hitching unit with the plurality of legs and the adjustable wing structure. Further, the user can mount the assembly as an extension of a cargo-bed of a vehicle and insert structural material into the receptacles of the assembly.