3 Chord Circle - Apex Down This is the standard orientation for a 3 tube circle, allowing it to be rigged easily in the horizontal orientation, and giving a single bottom chord for the mounting of lighting or sound equipment. For this reason, 3 tube apex down circles are particularly popular in nightclub and leisure installations. 3 Chord Circle - Apex In/Out This type of circle is regularly used for projection screens, owing to the cross sectional symmetry which allows the screen to be mounted centrally. Additionally, these circles have a flat outside perimeter, which can be particularly useful for the mounting of graphic boards or cladding. Litestructures supply a wide range of circular, elliptical and curved truss to complement their range of trussing systems. Using CNC rolling techniques means that these curves can be made to the same exacting accuracies as our straight components, ensuring that a structure that is both spectacular and easy to use. When combined with Litestructures vast array of optional powder coated finishes, curved structures can be used to make a bold statement which is totally unique.