How many metal ties are required for each square foot of wall area?

The requirement for metal ties in constructing walls is often based on standard practices in the building industry and local building codes. In this specific case, determining how many metal ties are necessary for each square foot of wall area is essential to ensure structural integrity, particularly in masonry construction.

The choice indicating 4.5 square feet aligns with many building codes that dictate the use of metal ties to appropriately anchor and support the walls, ensuring they can adequately handle lateral loads and resist potential structural failures. This number is derived from balancing the need for support with practical construction considerations, thus promoting both safety and efficiency in materials used.

The other options suggest a different ratio of wall area to the number of metal ties required, which may not meet accepted guidelines or might fall short in providing adequate support. Striking the proper balance is key in construction, and 4.5 square feet per metal tie reflects a well-considered requirement for maintaining structural integrity while not over-specifying resources.