Perforated square tubing This thin metal tube is made out of 6063-T6 aluminum metal with a clear anodize finish. Flex Craft products are not intended for human support. Material is sold in full 24' lengths but can be cut to 6' or 8' lengths. We also offer other design options such as: spot welded tubes, longitudinal/straight seam tubes, straight seam The square tube design provides superior wind load performance and torsional stability, ensuring lasting strength in demanding conditions. Unlike Telespar telescoping tubing specifically for sign post applications, mechanical tubing includes square tubing without holes (solid steel square tubing) and plain carbon steel ("black" steel) finish (unfinished). A Metal Tube for Every Application Metal tubes have a number of applications, including building equipment stands, tool racks or support structures. It can be used for various applications including frames, brackets, stakes, ornamental work, etc. While the system is primarily developed for signpost applications, its versatility makes it ideal for identification signage, parking meter posts, barricades, and a wide variety of other uses. Telespar Perforated Square Tubing Telespar Solid Square Tubing (Without Perforations) Perforated Square Tube is designed to meet NCHRP 350 breakaway standards. Common uses include bicycle frames, heat transfer applications, and non-corrosive applications such as piping and tubing. udvtndsrmhsquhzgyowcntwmctsyftmexhfuxepcdhmoakkukpommfifohqarzkruslumwljuotebrculg