Currently, disc-lock scaffolding is highly favored in the scaffolding industry. Due to the advancement of macro policies, the market demand for disc-lock scaffolding is increasingly exceeding supply. However, many industry professionals new to disc-lock scaffolding are not entirely clear about the quantity of disc-lock scaffolding required for a project.
First, Exterior Wall Scaffolding: According to conventional construction plans, the height of double-row scaffolding on exterior walls generally does not exceed 20 meters, with a longitudinal spacing of approximately 0.9 meters. Each layer of double-row scaffolding on exterior walls requires steel footboards and is equipped with double-layer guardrails, toe boards, and diagonal braces to prevent scaffolding collapse accidents. How to calculate the area of disc-lock scaffolding needed? When we know the area of the building’s exterior wall, we can roughly calculate the required scaffolding quantity. For example, assuming the exterior wall is 10 meters high and 8 meters long, the area of disc-lock scaffolding is usually 10 meters multiplied by 8 meters, which is approximately 100 square meters. Based on this area calculation, the required scaffolding volume is approximately 27 to 28 tons. It should be noted that the length and height of the building’s exterior walls may vary during actual construction, resulting in a certain standard error.
Secondly, Internal Full-Span Scaffolding: In actual construction, one or more layers of internal full-span scaffolding are typically installed at specific locations as a work platform. According to standard specifications, internal full-span scaffolding is primarily 1.8 meters by 1.8 meters in length, with 1-2 passageways at the bottom. Unlike exterior wall scaffolding, internal full-span scaffolding is usually measured in meters. Therefore, when calculating the amount of scaffolding needed for disc-lock scaffolding, only the cubic volume of the erected area needs to be known to roughly estimate the required scaffolding volume. For example, according to a standard specification, each cubic meter of full-span scaffolding requires approximately 23 to 25 kilograms; therefore, 100 square meters of full-span scaffolding would require approximately 23 to 25 tons. This estimation allows for a rough calculation of the required amount of disc-lock scaffolding.
Third, Formwork Support Scaffolding. Unlike full-span scaffolding and external wall scaffolding, formwork support scaffolding does not require access channels or working platforms during construction. Therefore, when calculating the amount of disc-lock scaffolding needed, the need for access channels and working platforms is usually excluded based on the actual site conditions. Following standard specifications, assuming the formwork support structure is 900×900 or 1200×1200 mm, and using the 900*1200 mm parameter for calculation, the amount of formwork support needed is approximately 17-19 kg/m³. By knowing the cubic volume of the formwork support, the amount of disc-lock scaffolding needed can be roughly estimated.
The above is the method for calculating the amount of disc-lock scaffolding needed during construction. However, in actual construction, to accurately calculate the specifications and quantities of various components and accessories, it is necessary to combine calculations with the actual construction plan drawings. Especially for projects with special requirements, the above method may not be very practical and has a relatively large margin of error. However, when understanding the initial needs of the contractor in the early stages of a project, the above method for calculating the amount of disc-lock scaffolding needed remains relatively practical.
Post time: Jan-27-2026