Channels are used in a variety of applications including tracks and fascia.  It is available in 16, 14 and 12 gauge.
6" x 2" - 14 Gauge Steel Channel6" x 2" - 14 Gauge Steel Channel

6" x 2" - 14 Gauge Steel Channel

From $4.07
8" x 2" - 14 Gauge Steel Channel8" x 2" - 14 Gauge Steel Channel

8" x 2" - 14 Gauge Steel Channel

From $4.89
8" x 2" - 12 Gauge Steel Channel8" x 2" - 12 Gauge Steel Channel

8" x 2" - 12 Gauge Steel Channel

From $7.34
10 1/8" x 2" - 14 Gauge Steel Channel10 1/8" x 2" - 14 Gauge Steel Channel

10 1/8" x 2" - 14 Gauge Steel Channel

From $5.56
10" x 2" - 12 Gauge Steel Channel10" x 2" - 12 Gauge Steel Channel

10" x 2" - 12 Gauge Steel Channel

From $9.29
12" x 3.5" - 12 Gauge Steel Channel12" x 3.5" - 12 Gauge Steel Channel

12" x 3.5" - 12 Gauge Steel Channel

From $11.63
14" x 3.5" - 12 Gauge Steel Channel14" x 3.5" - 12 Gauge Steel Channel

14" x 3.5" - 12 Gauge Steel Channel

From $13.11
6" x 2.5" - 16 Gauge Steel Channel6" x 2.5" - 16 Gauge Steel Channel

6" x 2.5" - 16 Gauge Steel Channel

From $3.87