Screw channel for cross-furring and for furring walls must have what feature to receive screws?

Screw channel for cross-furring and for furring walls must have what feature to receive screws?

• A. Perforated face
• B. Smooth face
• C. Knurled edge
• D. Ribbed back

Answer: (A)

The face of a screw channel used with cross-furring and furring walls must be perforated so screws can bite and grip. The holes provide a true bite for the screw threads, letting the channel be securely anchored to the structure and preventing it from slipping or pulling loose as plaster or wallboard is attached. A smooth face wouldn’t provide that screw engagement, and a knurled edge or ribbed back doesn’t give the necessary opening for fastening.

The face of a screw channel used with cross-furring and furring walls must be perforated so screws can bite and grip. The holes provide a true bite for the screw threads, letting the channel be securely anchored to the structure and preventing it from slipping or pulling loose as plaster or wallboard is attached. A smooth face wouldn’t provide that screw engagement, and a knurled edge or ribbed back doesn’t give the necessary opening for fastening.