To ensure proper coverage, how far apart should nails be placed when attaching plywood soffit?

When attaching plywood soffit, nails should be spaced correctly to ensure proper coverage and structural integrity. The recommended spacing is typically 6 inches apart. This distance allows for enough secure attachment to prevent sagging or movement, especially in areas exposed to environmental factors such as moisture and temperature changes. Proper nail spacing also helps distribute the load evenly across the plywood, contributing to a stronger installation. Maintaining this consistent spacing prevents potential weak points that could lead to failure in the soffit over time.

The other distances are less optimal for achieving sufficiently strong and stable construction. While nails placed 4, 5, or 7 inches apart might provide some level of attachment, they do not align with the best practices for ensuring adequate support and coverage in typical applications for plywood soffits.