Which of the following is a correct statement about lathing wire gages?

Which of the following is a correct statement about lathing wire gages?

• A. They are defined by U.S. Steel wire gages
• B. They are defined by metric units only
• C. They are defined by ISO standards
• D. They are defined by postal codes

Answer: (A)

Lathing wire gauges are tied to a traditional US standard system that specifies wire thickness according to a chart developed by US steel manufacturers. This means the gauge number on lath wire directly tells you the exact diameter of the wire, which is essential for predicting plaster bonding and how the lath will perform in the wall. Because this gauge system originated with US steel, it remains the basis for lath sizing in typical American plastering practice. The other options don’t fit because they rely on metric units, ISO standards, or postal codes, none of which define the thickness standards used for lath wire in this industry. In everyday work, you reference the US steel wire gauge for consistent wire thickness, not metric or ISO specs.

Lathing wire gauges are tied to a traditional US standard system that specifies wire thickness according to a chart developed by US steel manufacturers. This means the gauge number on lath wire directly tells you the exact diameter of the wire, which is essential for predicting plaster bonding and how the lath will perform in the wall. Because this gauge system originated with US steel, it remains the basis for lath sizing in typical American plastering practice.

The other options don’t fit because they rely on metric units, ISO standards, or postal codes, none of which define the thickness standards used for lath wire in this industry. In everyday work, you reference the US steel wire gauge for consistent wire thickness, not metric or ISO specs.