What are the standard sizes of furring channel?

Furring channels — sometimes called "hat channels" — are used a lot in drywall framing, ceilings, and masonry walls to create a smooth surface for finishes.
The standard sizes typically are:

• Width:

  • 7/8 inch (22 mm)

  • 1-1/2 inch (38 mm) — most common for heavier-duty applications

• Depth (Height from base to top of hat):

  • 7/8 inch (22 mm) — very common

  • 1-1/2 inches (38 mm)

• Length:

  • 8 feet (2.44 meters)

  • 10 feet (3.05 meters)

  • 12 feet (3.66 meters)

  • 16 feet (4.88 meters) — longer lengths are available for special orders

• Thickness (Gauge):

  • 25 gauge (lightweight, for ceilings or non-loadbearing walls)

  • 20 gauge (thicker, more durable)

  • 18 gauge (even heavier, for more structural uses)

There are also custom sizes depending on the project (especially for commercial or industrial builds).