Steel Perforated Square Tube, The 1-3/4 x 1-3/4 x 12 perforated tube is designed to be telescoped into our 2 x 2 x 12 ga perforated tube and can be used with our locking pins. Same and Next Day Delivery. Shop perforated steel tubing at Unistrut Store. Choose from our selection of perforated steel tubing, including over 70 products in a wide range of styles and sizes. Blulu 1 Pcs 1 x 48" Perforated Square Tube, 14 Gauge Thick Telescoping Galvanized Steel Tube with Holes Square Tubing for Traffic Signs, Sign Posts, Safety Columns & Outdoor Structural Support Save 5% on 2 select item (s) Recycled materials +2 more Add to cart Perforated square tubes support fabrication, frames, and structural projects. . Longer lengths and quantity discounts available. Perforated steel tubing is a type of steel product that combines the structural strength and long lasting properties of all of our other steel products with the striking aesthetics and adjustability offered by the perforations. Several tube sizes and materials are available at Lowe's. Perforated tube has 7/16" diameter holes on 1" centers on all four sides of the tube. nckah, sc1jbkp, uom, jn5swhm, xawq, 11, 2pmwa, dye, t1ygyhai, ms,