System for conveying and stowing elongated material

A rack corresponding a vehicle having matching connectors: a plurality of modular shelves having two longitudinal sides, the modular shelves are configured to be mounted one on top of the other, wherein each modular shelf of the plurality of modular shelves comprising: a frame having a plurality of struts configured for mounting a modular shelf one on top of the other, and wherein at least a portion of the struts have bottom with fittings that comply with the matching connectors a guardrail on each longitudinal side of the frame wherein at least one of the guardrails is capable of moving between an upright position and a horizontal position. a drawer capable of moving on top of the frame through at least one of the longitudinal sides of the modular shelf.