Telescoping square steel tubing

Create adjustable structures with telescoping square tubing

Telescoping square steel tubing is extremely versatile because smaller sizes fit smoothly and snugly into the next larger size. Also known as telescopic steel, this metal tubing consists of one or more square tubes that slide into the next larger size for a close fit. This functionality is made possible by the latest in high-speed roll-forming technology with high-frequency resistance welding. Thanks to the resulting smooth corner welds offering very close tolerances, steel tubing fabrication costs are reduced.

For industrial and commercial applications, telescoping square steel tubing is an adaptable, versatile and durable solution. Steel tubing is used for applications requiring adjustability, such as storage racks and carts, as well as extendable arms and supports—even flag poles and camera mounts. Combined with our selection of hardware, fittings and accessories that are compatible with metal square tubing, you can create almost anything you need.

Unistrut Service Company offers two brands of telescoping square tubing: Telespar and Telestrut. Telestrut is compatible with Unistrut channel and fittings. Telespar is well suited for a variety of industrial applications, but it does not pair with Unistrut channel. Perforated square tubing is available with both brands.

Shop Telestrut and Telespar telescoping square steel tubing products below, or contact a Unistrut specialist for design and engineering support. 

Telescoping Square Tubing Brands