In multi-wythe masonry walls, the maximum distance between headers is 24 inches.

In multi-wythe masonry walls, the maximum distance between headers is 24 inches.

• A. 18 inches
• B. 30 inches
• C. 36 inches
• D. 24 inches

Answer: (D)

Headers in masonry work to transfer loads around openings and keep the wall acting as a unit. In a multi-wythe wall, placing headers no farther apart than 24 inches ensures there’s always a solid support above each opening and maintains a reliable load path to the sides. If headers were spaced farther apart, the masonry above the opening would span a larger unsupported area, increasing bending, cracking, or failure risk. Spacing them at 24 inches provides the needed strength without being unnecessarily tight or costly.

Headers in masonry work to transfer loads around openings and keep the wall acting as a unit. In a multi-wythe wall, placing headers no farther apart than 24 inches ensures there’s always a solid support above each opening and maintains a reliable load path to the sides. If headers were spaced farther apart, the masonry above the opening would span a larger unsupported area, increasing bending, cracking, or failure risk. Spacing them at 24 inches provides the needed strength without being unnecessarily tight or costly.