Pultruded Grating and Molded Grating are two common types of grating used in various industrial applications. Here is a comparison between them:

top hammer bit. This results in reduced drilling time and increased productivity on-site.
Available in 1” deep, 1” x 4” pattern, rectangular mesh FRP gratings are commonly used for walkways and trench applications. When selecting rectangular mesh grating it is important to specify the span (rectangular opening) of the grating perpendicular to the supporting structure.