How much overlap should planks on scaffolding have if they are not immovable?

In scaffolding construction, ensuring the safety and stability of the platform is paramount. The correct amount of overlap for planks on scaffolding that are not immovable is 12 inches. This overlap helps provide adequate support and reduces the risk of the planks shifting under load, which could lead to accidents.

When planks are joined, the overlapping section serves to distribute weight more evenly and minimize the potential for movement between the planks. A 12-inch overlap not only enhances the structural integrity of the scaffolding but also complies with safety regulations and best practices in construction. Lesser overlaps, such as 6, 8, or 10 inches, may not provide the same level of stability and can increase the risk of the planks slipping out of alignment, which compromises worker safety and project integrity. Thus, the specified overlap ensures a safer working environment when scaffolding is in use.