When boring holes for electrical installations through wood members, what is the minimum edge distance required from the nearest edge of the wood?

The minimum edge distance required when boring holes through wood members for electrical installations is crucial for maintaining the structural integrity of the wood and ensuring safe installations. A distance of 1¼ inches from the nearest edge is specified to prevent weakening the wood, which can lead to potential structural failure or reduced load-bearing capacity.

Boring holes too close to the edge can compromise the strength of the wood by creating weak points that can easily crack or break. Having this minimum distance helps to ensure there is enough material around the hole to provide support and maintain the overall strength of the wood. It also addresses safety concerns by reducing the risk of inadvertent damage to the wood when screws or nails are subsequently driven into the member.

The specified distance, thus, is based on established guidelines that balance safety, structural integrity, and practical application in electrical installations.