Telespar standard perforated tubing comes in eight sizes, from 1-1/2" to 2-1/2" square sections. 12 Gauge. Perforated holes are 7/16" spaced on 1" centers. Sections without holes are available in all sizes.
Telespar comes in two standard finishes: Pre-Galv Plus™ and plain (lightly oiled) surface. The Telespar system includes a complete line of zinc-electroplated fittings, fasteners and accessories for splicing, extending and reinforcing. Unistrut Service Company offers cut-to-dimension service.
Please Note: In order to create a telescoping section, you'll need to purchase one male and one female section of Telespar tubing (e.g., one piece of 1-1/2" x 1-1/2" and one section of 1-3/4" x 1-3/4").
Telespar Perforated Square Tubing