Scaffolding tube spacing is generally not more than 2.0 m, poling horizontal distance not more than 1.5 m, even the wall not less than three spans, put a layer of fixed scaffolding full bottom, be put with scaffolding plank operation layer, since the operation layer down the plan, every 12 m to spread a layer of scaffolding.

Poling extension in addition to the top the top step, the rest of the each layer of each step must adopt butt joint fastener connection. Shall not be used in the joint of two adjacent scaffolding tube with step distance, synchronization across a vertical rod inside the two joints in the height direction of stagger distance apart should not be less than 500 mm, the distance of each joint center to the master node should not be greater than 1/3 of the interval.

Top step top scaffolding tube for long lap joint, the lap length should be not less than 1000 mm, and use not less than two rotating fastener stationary, end fastener cover plate edge to the rod end distance not less than 10 mm.

The master node must set a lateral horizontal pole, with a right-angle fastener hooking and it is forbidden to dismantle. The master node center distance of the two right-angle fastener should not be greater than 150 mm. In double row scaffolding, side against the wall of the lateral horizontal overhanging length should not be greater than 500 mm.

Scaffolds must be set longitudinal and transverse rod sweeps the floor. Longitudinal and transverse rod sweeps the floor should be right-angle fastener epithelial no greater than 200 mm from the base of the scaffolding tube. When scaffolding tube base is not in the same horizontal plane, vertical sweep the floor must be high lever downward extend two across and vertical rod is fixed, height difference should not be greater than 1 m.