Amazon.com: Newhouse Electric 1-5/8 in. 14 Gauge Metal Strut Channel with Slotted Back Electro-Galvanized 2ft. (SC14-2-EG),Silver : Industrial & Scientific
5" X 6.7# (1.75 X .19) HOT ROLLED STRUCTURAL CHANNEL ASTM A36
1-5/8 x 1-5/8 x 20ft Strut Channel Gr 304 Stainless Steel 12ga Slotted