When contractors fail to take the time to plan and carefully set up tubular frame scaffolding, accidents occur, OSHA citations abound, workmanship suffers, and jobs are lost because of the costs of inefficiency. PLANNING THE SCAFFOLDING LAYOUT IS CRITICAL Planning the scaffolding layout should be the first step in scaffolding a building, but it's a process that is often overlooked. Study the blueprints to find all the corners, control joints, overhangs, corbels, and inserts; then draw a basic outline for the building, marking where you want your scaffold to land. SET MUD SILLS PERPENDICULAR TO WALL Often mud sills consist of 16-foot scaffold-grade planks placed parallel to the wall. Instead, use 8-foot construction-grade planks placed perpendicular to the wall. LAY OUT ALL BRACES AND FRAMES BEFORE ATTACHMENT Once the mud sills are in place, secure two screw jacks to the top of each sill, then place the cross-braces by the front and back of each mud sill. GIVE MASONS ACCESS TO CORNERS Proper planning is needed to give masons enough space to work on inside corners when a corner outrigger is used. When scaffolding a building with a 90-degree exterior corner where a scaffold run ends flush with the building corner, start a new scaffold run at the outside corner of the existing run and proceed to the next building corner. DECK AS MANY LEVELS AS POSSIBLE Contractors should have at least three levels of scaffolding decked at a time-one working level, one above, and one below. However, it's really much better to have scaffolding specialists deck the whole scaffolding system in advance.