Outwater Black Finish 1/2'' Inside Dimension Aluminum U-channel 46'' Length (pack Of 3) Alu847-bk C-channel in the Furniture Moulding department at Lowes.com
1-1/2 in. x 1/2 in. x 10 ft. 16-Gauge Cold Rolled Channel 112CRC1610 - The Home Depot
Thomas & Betts B99510 Kindorf Metal Channel | Standard Electric Supply Co.
Amazon.com: Newhouse Electric 1-5/8 in. 12 Gauge Metal Strut Channel with Slotted Back Electro-Galvanized 2ft. (SC12-2-EG) : Industrial & Scientific
1-1/2" x 1/2" Channel Metal Bar - 11 gauge - Mild Steel - 36" inch Long (3-ft) | eBay
Aluminum Channel – 1-1/2″ Leg x 1/2″ OD x 1/4″ ID x 1/8″ Wall - Eagle Aluminum
Everbilt 1/2 in. W x 1/2 in. H x 96 in. L Aluminum C-Channel with 1/16 in. Thick 802657 - The Home Depot
1-1/2" x 1/2" Channel Metal Bar - 11 gauge - Mild Steel - 36" inch Long (3-ft) | eBay
Everbilt 3/8 in. W x 1/2 in. H x 96 in. L Aluminum C-Channel with 1/16 in. Thick 800547 - The Home Depot
1/8" Wall 1" x 1-1/2" Aluminum U Channel Satin Anodized Finish 95" | Wholesale Glass & Supplies