furring channel detail

A furring channel is a metal or wood framing system used in construction to level out surfaces and provide a base for attaching finish materials like drywall, ceiling panels, or cladding. It's commonly used in walls, ceilings, and sometimes floors.

Here’s a detailed breakdown of furring channel detail — specifically for a metal furring channel system, which is most common in commercial and residential drywall applications:

Furring Channel Detail (Metal Type – Common in Drywall/Ceiling Systems)

1. Profile (Cross-Section Dimensions)

• Typical size (metric):

  • Width: 50mm

  • Height: 19mm or 25mm

  • Thickness: 0.45mm to 1.0mm (depending on load/spacing)

• U-shape or Hat-shape profile (depends on manufacturer)

2. Material

• Galvanized steel (G60 or G90 coating)

• ASTM A653 compliant

3. Installation Spacing

• Wall Applications:

  • Vertical spacing: 400mm or 600mm on center (O.C.)

• Ceiling Applications:

  • Main channel spacing: 600mm–1200mm O.C.

  • Cross tee spacing: 400mm–600mm O.C.

4. Mounting

• Attached to concrete, masonry, or wood using:

  • Concrete anchors

  • Screws (for wood or metal stud attachment)

  • Suspension wires + clips (for ceilings)

5. Used For

• Leveling uneven surfaces

• Acoustic insulation (creates an air gap)

• Mounting base for:

  • Drywall

  • Plywood

  • Metal cladding

  • Sound panels

6. Compatible Components

• Wall studs (if vertical use)

• Ceiling joists or hangers (if ceiling use)

• Drywall screws or rivets

• Insulation material placed in cavity (optional)

Example Detail Drawing Components (Ceiling Furring System):

• Structural slab/joists

• Suspension wire (hangs from slab)

• Main furring channel

• Cross furring channel (perpendicular)

• Drywall board screwed into furring

• Optional acoustic or thermal insulation in cavity