As a widely used aluminum profile shape, aluminum tubes are available in square, rectangular and round shapes in a range of sizes based on the outside dimensions. If i am outside, leave a message and i will call you back soonest. Handmade industrial style bookshelf. Steel square tube 6061 t6 square tube is stocked in length 288” long. Slotted aluminum square tubing . 15/16 x 1/4 slotted slider aluminum tubing up to 14' long @ $5.00 per linear foot. Square aluminum tubing is easy to weld and can be used to convey hydraulic fluid, air, oil, or water. With its excellent finishing characteristics, it is well suited for all types of fabrication projects where lightweight and corrosion resistance is a primary. In stock and ready to ship. Custom manufacturer of slotted steel tubing. All profiles are in mill finish. We use principles of lean manufacturing to get every order to the customer on time, with unmatched precision. It is a relatively light metal pipe compared...