The Model 720 floor deck (profiled steel deck) differs in appearance from the Model 688 primarily in the number of crests; the Model 688 has two crests, while the Model 720 has three. Shanxi Qixian Shengda Yida Color Steel Co., Ltd. produces and sells Model 720 floor decks directly from the manufacturer, with the model designation YX51-240-720.

      Like the Model 688, the Model 720 floor deck is also open-type. From the designation YX51-240-720, it can be seen that the crest height is 51mm, the pitch is 240mm, and 720 indicates that the effective usable width of the panel is 720mm, with an unfolded width of 1000mm.

      The Model 720 floor deck is formed by cold-pressing galvanized steel sheets. The thickness of the galvanized sheets generally comes in three specifications: 0.8mm, 1.0mm, and 1.2mm. The raw material, galvanized steel sheets, can also be chosen with or without spangle. How long is the floor deck generally? Depending on the design and usage requirements of different buildings, the length of the Model 720 open-type floor deck can be customized freely.

       In terms of application, profiled steel sheets are widely used, especially in multi-story and high-rise steel structure buildings. The YX51-240-720 floor deck features a rational design and high strength, with surface protrusions that enhance the bonding force between concrete and the panel. Builders and owners generally favor open-type floor decks for their ability to improve construction efficiency, quickly form a working platform, and eliminate the need for formwork removal.