A carpenter is installing corner bead on outside drywall corners. To ensure a durable, chip-resistant edge, what is the recommended method for securing the corner bead before finishing?

Question: A carpenter is installing corner bead on outside drywall corners. To ensure a durable, chip-resistant edge, what is the recommended method for securing the corner bead before finishing?

Answer options:

• Staple it every 300 mm (12 inches) with 10 mm (3/8 inch) staples.
• Embed it in a thin bed of joint compound and then screw it. ✅ Nail it every 150 mm (6 inches) with annular ring nails or use crimping tools.
• Use construction adhesive along the entire length.

Correct answer: Nail it every 150 mm (6 inches) with annular ring nails or use crimping tools.

Explanation: Securing corner bead with annular ring nails spaced approximately 150 mm (6 inches) or using a crimping tool provides a strong, permanent mechanical fastener that resists pull-out and cracking, essential for a durable corner. Staples can pull out, embedding in mud alone is insufficient, and adhesive alone is not typically the primary fastening method for corner bead.