![]() ![]() Working platforms should be built from solid wood or fabricated planks.ĭo not overload the scaffold platform with more than its intended loading capacity nor extend working maximum heights by climbing guardrails or using boxes or ladders on the platform. It shouldn’t deflect more than 1/60 of its length between supports. Planking installed on a scaffold must be able to support at least four times its intended load, plus its own weight, without failure. It should be sturdy enough to stop a fall. The top rails on guardrails must not be built from steel or plastic banding. When used to support the top rail for the guardrail, cross bracing should reach the required height of between 38 and 45 inches. Guardrails must be between 38 inches and 45 inches in height, with the midrails being installed at about half that height. On supported scaffolds, OSHA requires guardrails to be installed at heights over 10 feet in most circumstances. Different regulations apply to different types of scaffolding systems-such as supported scaffolds versus suspension platforms-but the general premise is the same: make sure the structure is secure and safe to use. Scaffolding systems need to be designed and built a certain way to be deemed safe. These scaffolding safety guidelines, which come directly from OSHA standards, are explored in greater depth in the sections below. A trained crew may only perform scaffold alteration under the supervision of a competent person.
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