English name of high-strength Grid "SuperSpan", literal translation of the word is "long span" before, its vertical ribs of the interval is very large, even more than the rectangular grid formatting. Because of this, we widened the top of the transverse ribs and longitudinal ribs, in order to ensure its strength and practicality. This is the difference between grid and rectangular princess. At present, only a thickness of 1.5 "(about 38.1mm) of the three models. 
 Such a grid, only the vertical ribs of the design uses a trapezoidal cross-section, transverse ribs are relatively dense T-shaped cross section (similar to the pultruded grating.) We only called the transverse ribs bearing ribs.