When drilling a hole for wire run in a 2"x4" board, how close can you drill to the edge of the board?

The correct choice is based on the guidelines for drilling holes in wooden framing members such as a 2"x4" board. When running wires through wood, it's essential to avoid drilling too close to the edge to maintain the structural integrity of the board and to protect the wire from potential damage.

Drilling not less than 1.25 inches from the edge helps ensure that the hole is far enough away to prevent the risk of splitting the wood or weakening it. This distance also minimizes the chances of hitting the wire later during any further construction or modification, which could lead to shorts or other electrical hazards.

Adhering to this standard is important for both safety and compliance with building codes, which typically dictate proper practices when working with electrical installations in framing materials. While other options may suggest smaller distances, they do not provide the same level of protection against potential damage, making them less favorable.