If concealed copper piping passes through holes in wood studs, shield plates are not required if the holes are at least how far from the nearest edge of the studs?

The correct distance at which shield plates are not required for concealed copper piping passing through holes in wood studs is indeed 1 1/4 inches from the nearest edge of the studs. This regulation is in place to prevent potential damage to the pipes during construction or subsequent activities, such as the installation of drywall or nail penetration for fasteners.

By establishing a minimum distance of 1 1/4 inches, the code aims to ensure that there is sufficient clearance to avoid any contact with nails or screws that could compromise the integrity of the piping. This distance provides a safeguard which helps minimize the risk of puncturing the pipes or inadvertently causing leaks, thereby promoting safety and longevity of the plumbing system.

Understanding this requirement is crucial for both compliance with building codes and practical plumbing installation, as it directly affects the durability and functionality of the plumbing infrastructure.