Abstract: A foldable trailer having a frame formed of a pair of side frame members pivoted at their forward ends for movement in the direction toward and away from each other between folded and unfolded positions respectively, a tail gate pivoted at one end to one of the side frame members with means for securing the other end to the other of the side frame members when in unfolded position, a mid cross bar member pivoted to the other of the side frame members and means for securing the other end of the mid cross bar to the opposite side member when in unfolded position, wing members pivotally mounted on the forward end portions of the side frame members for movement between folded and unfolded positions with means for latching the wing members in unfolded position, a wheel supporting axle subdivided into sections for collapse and means for securing the sections when in unfolded position to extend crosswise of the side frame members, and a floor panel adapted to be supported on the frame when in unfolded position.