A stacking support that has a plurality of sidewalls extending along a longitudinal axis that define an open ended longitudinally extending channel. The sidewalls may define a substantially square cross-sectional shape. Tubes and/or angled corner braces may be positioned at the corners of the substantially square cross-sectional shape. The stacking support may be constructed entirely of aluminum or an aluminum alloy. One or more items may be stacked upon two or more stacking supports. Optionally, the stacking support may be supported by at least one a slider, roller, or caster on a support surface. The stacking support may be coupled to an underside of a platform along with one or more like stacking supports to create a stacking assembly. One or more items may be stacked upon the stacking assembly.