A spool is an arrangement of pipe furnished with the complete component by the fabricators for future installation. Spool drawings help to manufacture and assemble the spool accurately. This detailed structure of the spool makes proper maintenance within the piping system and acts as a guide to constructors for the detailed construction process. The pipe spool drawing is a pre-fabricated part of a piping system. It includes shop drawings, Isometric drawings, assembly drawings, As-built models and 2D Cad fabrication drawings.