1706.4.2 Nail Plate Attachments

Where retrofit studs are placed using the methods of Section 1706.3.2 or 1706.3.3, nail plates shall be spaced and attached in accordance with all of the following requirements.

1. Nail plates shall be spaced such that vertical spacing between plates shall be a maximum of 20 inches (508 mm).
2. There shall be at least three fasteners through each nail plate into both the primary and retrofit studs.
3. Fasteners used to secure nail plates to studs shall be a minimum 1¹/₂ inches (38 mm) long and fasteners shall be a minimum of 2³/₄ inches (70 mm) and a maximum of 6 inches (152 mm) from the ends of retrofit studs.
4. Fasteners placed in nail plates shall be spaced a minimum of 2³/₄ inches (70 mm) along the length of lumber and 2³/₄ inches (70 mm) from ends of lumber.
5. Fasteners shall be placed a minimum of a ¹/₂ inch (13 mm) from the edges of the studs and a maximum of 1¹/₂ inches (38 mm) from the abutting vertical edges of primary and retrofit studs.

Staggered fasteners used to secure nail plates shall be spaced horizontally a minimum of ¹/₂ inches (13 mm).