Foldable trailer

In a foldable trailer comprising a normally horizontal frame having sides and front and rear ends, a platform secured to and carried by the frame in normally horizontal position, the frame being circumscribed by an upstanding flange, the flange to removably receive base portions of wall sections for enclosing a predetermined space above the platform, an axle secured to the frame intermediate the front and rear ends, and extending laterally with respect to the frame, wheels rotatably secured to the axle, and a hitch secured to the front end of the frame, the improvement characterized by the frame and platform being laterally divided into front, rear and central sections, the axle being secured to the central section, the central section being pivotably connected respectively to the front and rear sections by hinge means whereby the front and rear sections fold up into storage positions normal to that of the central section, releasable locking means being provided to secure the front and rear sections in the same plane as that of the central section during operative use of the trailer, and impermeable gasket means being secured to the frame below the platform, the gasket means being positioned where the frame and platform are laterally divided to provide a seal, when the sections are positioned in the same plane for operative use, against moisture, dust or foreign objects entering the upper platform surface from below.