which are set forth in OSHA standards themselves and the Occupational Safety and Health Act of 1970.
What are scaffold platform construction requirements?
Each platform must be planked and decked as fully as possible with the space between the platform and uprights not more than 1 inch (2.5 centimeters) wide. The space must not exceed 9 inches (24.1 centimetersm) when side brackets or odd-shaped structures result in a wider opening between the platform and the uprights. 1926.451(b)(1)
What are the requirements for scaffold planking?
Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. 1926.451(a)(1)
Solid sawn wood, fabricated planks, and fabricated platforms may be used as scaffold planks following the recommendations by the manufacturer or a lumber grading association or inspection agency. Appendix A (1)(b) and (c)
Tables showing maximum permissible spans, rated load capacity, and nominal thickness are in Appendix A (1)(b) & (c) of the standard.
What is the maximum deflection of a platform?
The platform must not deflect more than 1/60 of the span when loaded. 1926.451(f)(16)
Are there requirements for work on platforms cluttered with debris?
The standard prohibits work on platforms cluttered with debris. 1926.451(f)(13)
How wide does the work area need to be on scaffolding?
Each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. When the work area is less than 18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must be used. 1926.451(b)(2)
Are guardrails required on all open sides of scaffolding?
The standard requires employers to protect each employee on a scaffold more than 10 feet (3.1 m) above a lower level from falling to that lower level. 1926.451(g)(1)
To ensure adequate protection, install guardrails along all open sides and ends before releasing the scaffold for use by employees, other than the erection and dismantling crews. 1926.451(g)(4)
Guardrails are not required, however,
·When the front end of all platforms are less than 14 inches (36 centimeters) from the face of the work; 1926.451(b)(3)
·When outrigger scaffolds are 3 inches (8 centimeters) or less from the front edge; 1926.451(b)(3)(l)
·When employees are plastering and lathing 18 inches (46 centimeters) or less from the front edge. 1926.451(b)(3)(ii)
What materials are unacceptable for guardrails?
Steel or plastic banding must not be used as a toprail or a midrail. 1926.451(g)(4)(xiii)
United States department of labor