Pultruded Fiberglass Grating

Pultruded fiberglass grating is a high-strength, corrosion-resistant composite flooring and walkway material manufactured through the pultrusion process. Continuous glass fiber rovings are pulled through a resin bath and then through a heated die to form I-beam shaped bearing bars, which are cross-connected with round or square rods to create a rigid, open-mesh grating panel.

Unlike molded grating, pultruded grating features unidirectional fiber orientation in the bearing bars, providing superior strength-to-weight ratio and higher load capacities over longer spans. It typically supports concentrated loads up to 500 psf and can span up to 48 inches between supports, making it an ideal replacement for steel grating in corrosive environments.

Pultruded grating is available in standard panel sizes of 4×12 ft and 3×10 ft, with various resin systems including polyester, vinyl ester, and fire-retardant formulations. Surface options include concave or convex grit surface for anti-slip performance, meeting OSHA and ADA safety requirements for industrial walkways, platforms, trench covers, and drainage applications.