The present invention is a multi-purpose secondary truck bed. An inner leaf assembly slides along or within an outer leaf assembly, permitting adjustment of the overall length of the secondary truck bed. The inner leaf and outer leaf assemblies also slide up and down legs, allowing height adjustment for the inner leaf and outer leaf assemblies. Fasteners passed through fastening apertures in lateral edges of the inner leaf and the outer leaf maintain the length. Fasteners passed through fastening apertures in the legs and the inner leaf and outer leaf assemblies maintain the height.