How far apart should nails be when nailing a trimmer in place?

When nailing a trimmer in place, the correct spacing for the nails is typically 24 inches apart. This distance is recommended to provide adequate structural support while allowing for proper load distribution.

Trimmers, which are the framing members that support the headers above door and window openings, require reinforcement to ensure they effectively bear the weight of the structure above them. By spacing the nails 24 inches apart, you create a balance between sufficient anchoring of the trimmer and avoiding over-nailing, which could lead to splitting the wood or weakening the joints.

In construction practices, the spacing is also aligned with common framing practices, which often standardize dimensions to facilitate ease of construction and ensure consistency. Therefore, maintaining a spacing of 24 inches helps in adhering to these established building codes and standards.