Unit ties are generally placed at what spacing?

Unit ties are generally placed at what spacing?

• A. Every other block horizontally and every other horizontal joint
• B. Every block
• C. Every other joint
• D. Random

Answer: (A)

Unit ties hold masonry units together so the wall acts as a single, integrated system and can resist lateral forces. The best spacing is to place ties at every other block along the length and at every other horizontal joint between courses. This pattern gives a regular network of ties that connects the wythe through alternating courses, spreading restraint evenly without overdoing hardware. Spacing ties every block would waste material and add unnecessary cost, while tying only every other joint could leave gaps where the wall isn’t adequately connected. A regular, alternating pattern ensures consistent performance across the wall.

Unit ties hold masonry units together so the wall acts as a single, integrated system and can resist lateral forces. The best spacing is to place ties at every other block along the length and at every other horizontal joint between courses. This pattern gives a regular network of ties that connects the wythe through alternating courses, spreading restraint evenly without overdoing hardware. Spacing ties every block would waste material and add unnecessary cost, while tying only every other joint could leave gaps where the wall isn’t adequately connected. A regular, alternating pattern ensures consistent performance across the wall.