The steel structure house floor is generally cheaper compared to traditional wooden or concrete floors. This cost-effectiveness is primarily due to the lower material and labor costs associated with steel construction.

Steel is a highly durable and versatile material that can be easily prefabricated off-site. According to the American Iron and Steel Institute (AISI), steel framing can reduce construction time by up to 30% compared to traditional methods. This efficiency translates into lower labor costs, as fewer workers are needed for the shorter duration of the project. Additionally, the prefabricated nature of steel components allows for easier assembly, further reducing labor expenses.

Furthermore, steel is a cost-effective material due to its recyclability. Steel can be recycled indefinitely without losing its structural integrity, making it an environmentally friendly and sustainable choice. This recyclability can lead to lower material costs over the long term, as manufacturers can use recycled steel in new construction projects.

Data from the National Association of Home Builders (NAHB) indicates that steel framing can reduce the overall cost of a new home by approximately 6-8%. This cost savings is attributed to the aforementioned factors, including reduced labor and material costs, as well as the potential for energy savings due to the high thermal performance of steel.

In conclusion, steel structure house floors are cheaper due to the efficiency of prefabrication, lower labor costs, recyclability, and potential for energy savings. These factors make steel an attractive option for cost-conscious homeowners and builders.