The clamp-type steel pipe scaffold is a commonly used form in construction projects. This article will briefly describe the assembly methods and steps involved.

Lumber and pole setting are fundamental tasks in scaffolding construction. Groups of 3-4 people work together for the assembly; first, the inner poles are set up (with a distance of 500mm from the wall), followed by the outer poles. The horizontal distance between the inner and outer poles is determined according to the construction plan. For those using steel sleeve bases, the steel pipe should be inserted to the bottom of the sleeve. The poles should ideally be set up straight, with the middle pole in the center, and the remaining middle poles should be set up after "the three points are pulled into a straight line." The poles must be vertical, with an allowable deviation less than 1/200 of the height. The lines connecting the inner and outer rows of poles in the double-row scaffolding should be perpendicular to the wall.

As the uprights are set up, the top beams are installed. After a portion of the top beams is secured, the cross beams are then attached. The cross beams must be perpendicular to the top beams, extending 150mm beyond the ends of the top beams to prevent them from bending and slipping off the fasteners. The top beams should remain level (the height difference between the ends of a single beam should not exceed 2mm, and the difference in height between two beams within the same span should not be more than 10mm). If there is a height difference on the ground, the uprights should be set up starting from the lower point.