How far must a scaffold plank extend beyond a ledger at a minimum?

The requirement for scaffold planks to extend beyond a ledger is crucial for ensuring stability and safety when working at height. A minimum extension of 6 inches beyond the ledger helps to provide adequate support and reduces the risk of the plank slipping or shifting.

This extension allows workers to safely access the scaffolding from the side, ensuring that there is enough surface area to stand on without risking a fall. The guidelines are designed to balance safety and functionality, making the extension of 6 inches a practical choice that aligns with safety regulations across various scaffolding standards.

Other potential extensions, like 4, 8, or 12 inches, may not be sufficient or may exceed practical needs, thus leading to potential safety risks or inefficiencies in the use of the scaffold. Adhering to the 6-inch guideline ensures a standard that facilitates safety while maintaining usability for workers on the scaffold.