Hot-Roll Bar Channel Width 2" x Leg 5/8" x 1/4" Thickness – Des Moines Steel Inc.
C Channel Mild Steel MS C-Channel, for Construction, Size: 3 Inch X 1.5,4 Inch
6063-T52 Aluminum Channel, 0.750" x 0.375" x 0.125" x 48 inches
Channels | MP Metals Products is a quality producer of common metal channels
Amazon.com: SKTREX 5 Feet Length Strut Channel Trolley Track,1-5/8" high and Wide 12 Gauge Metal Steel u Channel with Short Slotted Back Channel - Pre-Galvanized Zinc Finish for Durability (Pack of One) :
Xadnitu Strut Channel, 1-5/8" 12 Gauge Metal Strut Channel with Slotted Back, U-Channels with Pre-Galvanized Metal 4.9FT/1.5M Length - Amazon.com