Net Spaces Drawings are a 3D technical document that defines the boundaries between the interior spaces, dedicated to the living areas, and the exteriors volumes dedicated to the technical needs of the platform, intended to steel structure, piping system, equimpents, insulation.
NSD show any technical element, furniture, insulation and structural panels, floors and ceiling. Thet are fundamentals both for the piping coordinator and those who have to compartimentalize the ship.