Apr 21, 2016 · Nowhere in OSHA does it say that you will be ok if you use the rule of thumb for cribbing, instead in 1926.1402 OSHA states: that cranes must be assembled on ground that is firm, drained and graded sufficiently, in njunction with supporting materials, such as blocit, cribbing, pads, or mats, to provide adequate support and levelness. For
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