Abstract: A hauling and spreading trailer assembly for spreading loose material includes a trailer, which has a tongue that is engageable to a hitch of a tow vehicle. The trailer comprises a fixed bottom in which a plurality of apertures is positioned. A plurality of sidewalls extends substantially perpendicularly from the fixed bottom. A false bottom is slidably engaged to the trailer so that the false bottom is selectively positionable in first and second positions in which at least one of the apertures is at least partially open and the apertures are closed, respectively. A load of flowable material is positionable in the trailer with the false bottom in the second position. The false bottom can be selectively slid to the first position to dispense the flowable material through the at least one aperture, thereby allowing the flowable material to be spread at the trailer is towed.