1. Size of the Building
The size of the pre-engineered building is, understandably, the most significant contributor to the cost of the project. Larger buildings require more materials, manpower, and time to fabricate and install, which drives up the cost of the building.
Moreover, there is usually a fixed cost for the engineering, design, and fabrication of the building. Therefore, larger buildings help spread that cost across a larger area, reducing the cost of the building per square foot.