Masonry construction safety, fall hazard: Two bricklayers stand on wood plank working platform 20 ft above ground with no fall protection. The wall currently extends only 8" above the platform on which they stand. As they place mortar (as bricklayer on left is doing) and concrete block, they are exposed to a 20 ft fall. Bricklayer at right is getting his trowel out of his tool bag, to join the other bricklayer in laying block.
All work/ material platforms supported by top frame of tubular scaffold, except at mortar box and concrete block landing areas, have steel cross-bracing. Guardrails with toprails and midrails are required by OSHA. Cross-bracing may serve as toprail or midrail, if crossing point is 20" to 30" above work platform for midrail or 38" to 48" above work platform for a toprail. The cross-bracing on this project can serve as toprail, but a mid rail is still required. Ann Arbor, 2004.