Which of the following is the correct minimum embedment depth for wire wall ties in solid masonry units?

Which of the following is the correct minimum embedment depth for wire wall ties in solid masonry units?

• A. 1-3/4 inch
• B. 1 inch
• C. 1-1/2 inch
• D. 1-1/4 inch

Answer: (C)

Wire wall ties must be embedded enough into solid masonry to develop withdrawal and shear resistance. For solid masonry units, the minimum depth to achieve reliable anchorage is 1-1/2 inches. This depth ensures the tie engages solid material with enough surrounding mortar so it can resist pulling out and transferring lateral forces between wythes. If the embedment is shallower, the tie won’t have sufficient grip and could fail under load. Deeper depths would still work, but they’re not the minimum requirement, whereas shallower depths like 1 inch or 1-1/4 inch would be too shallow to meet the standard.

Wire wall ties must be embedded enough into solid masonry to develop withdrawal and shear resistance. For solid masonry units, the minimum depth to achieve reliable anchorage is 1-1/2 inches. This depth ensures the tie engages solid material with enough surrounding mortar so it can resist pulling out and transferring lateral forces between wythes. If the embedment is shallower, the tie won’t have sufficient grip and could fail under load. Deeper depths would still work, but they’re not the minimum requirement, whereas shallower depths like 1 inch or 1-1/4 inch would be too shallow to meet the standard.