4. Jack is ready for planks first then handrails. All three 2×4 handrails must be installed and secured with 8 penny nails. Handrails can be installed in outer pocket to allow three standard OSHA scaffold planks or the second pocket to accommodate two plank applications. Check your OSHA regulations for allowable spacing between wall and first plank.
The Occupational Safety and Health Administration (OSHA) reports that falls are the single leading cause of accidents and fatalities in the construction industry. OSHA recognizes The WHALEN-JACK as meeting all requirements as a scaffolding/fall protection carpenter's bracket.