Stair tread steel grating is one of the most widely used application of steel bar grating. It can be installed in the factories or in the parks for the permanent or temporary using. Stair tread can be made of low carbon steel, aluminum steel and stainless steel gratings. The low carbon steel grating can be galvanized and painted for better corrosion resistance. Types of stair tread steel grating According to the different fabrications of stair treads grating, it can be divided into welded stair treads, press-locked stair treads, swage-locked stair treads and riveted stair treads. Among the four types, the welded grating stair tread is the most widely used type. It has firm structure and simple technology. The press-locked and swage-locked stair tread can supply better lateral stiffness than other types of gratings. And the riveted stair treads features higher load carrying capacity for longer service life. A welded steel grating stair tread with checker plate nosing. Welded steel grating stair tread.A swage-locked steel grating stair tread with round hole plate nosing. Swage-locked steel grating stair tread. A riveted steel grating stair tread with a vertical stripped plate nosing. Riveted steel grating stair tread.A press-locked steel grating stair tread with a checker plate nosing.