This creative project has researched the sculpture of David Smith, Anthony Caro, Carl Andre, Robert Morris, Donald Judd, Sol Lewitt and Kenneth Snelson. Emphasis has been on the use of the right angle – not only in sculptural forms but also in the construction of our physical world. Elements of Cubistic constructed sculpture and the more contemporary movement of primary structure are discussed.A detailed description of the construction of a welded tubular metal sculpture is presented. Influences from the area of the primary structure movement and some of the above sculptors have been utilized in this project.