Molded FRP Grating Versus Pultruded Grating
We are often asked to explain the difference between Molded fiberglass grating and Pultruded fiberglass grating.MOLDED FRP GRATING
- Molded Grating has a square or mesh pattern similar to a checker board. The squares are typically 1.5” on center. It is also available with a 1” x 4” rectangular mesh Pattern.
- Molded Grating is equally strong in both directions so the panels can be rotated 90 degrees and have the same support characteristics.
- Molded Grating is available in 1”, 1.5” and 2” thick panels.
- Molded Grating comes in 3’ x 10’, 4’ x 8’ and 4’ x 12’ panels.
PULTRUDED FRP GRATING
- Pultruded Grating consists of a series of parallel bars. The bearing bars typically have a ‘T’ or ‘I’ profile as in T-Bar or I-Bar.
- The bearing pars are kept parallel with a series of cross-rods 6” apart that run at 90 degrees though the bearing bars. Cross-rods are not intended to be applied in the span direction.
- Pultruded grating can only support weight in the direction of the bearing bars. The bearing bars must traverse from support to support.
