Via Nicola Persico, 9 - 23

Gioia del Colle (BA), Italy

Via Giosuè Carducci, 23

Cortenuova (BG), Italy

GRP Moulded Grating

ll grigliato in PRFV - materiale Plastico Rinforzato con Fibre di Vetro – viene utilizzato per la costruzione di passerelle, scale, piattaforme, griglie di ventilazione, recinzioni, e in molte altre applicazioni dove è richiesta una superficie resistente agli agenti atmosferici, alla corrosione e all’usura.

GRP gratings

Composite gratings offer an optimal combination of strength, durability and lightness, making them ideal for a variety of industrial and architectural applications.

This type of grating is used for the construction of walkways, stairs, platforms, ventilation grids, fences, and in many other applications where a surface resistant to weathering, corrosion and wear is required. In fact, GRP composite offers excellent resistance to chemicals, making it suitable for use in aggressive environments where a conventional steel grating might degrade over time. GRP grating is also highly valued for its light weight and ease of installation and maintenance.

GRP Grating 38 x 38 mm; h 30 mm

This Isophthalic or General Polyester Resin moulded GRP grating panel, mesh 38×38 mm is up to 50% lighter than steel, finished with a hard wearing anti-slip gritted surface. Compliant with international recognised standards.

Max clear span

  • Max clear span at 3kN/sqm: 1015 mm
  • Max clear span at 5kN/sqm:885 mm

Load-based calculations are sent on request


  • Mesh sizes: 38 x 38 mm
  • Bearing bar: 30 x 6.5 mm
  • Surface finish: sanded on top
  • Dimensions of panels: 2000x1000mm – 4000x1000mm
  • Weight of panels : 17.80 kg/metro quadro


  • Resins: Isophthalic
  • Fire Rating ASTM E-84 CLASS 2 (A):1998
  • Colour: Green RAL 6010


  • Certification of Conformity
  • BS4592-0:2006 + A1:2012 for Industrial Flooring & Walkways
  • BS EN 141222-2:2016 Working Platorms & Walkways
  • BS 476 PT 7 Class 2 : 1997 for Fire Retardency
  • ASTM E-84 Class 2 (A) : 1998 for Fire Retardency for Surface Spread of Flame


  • General industry
  • Power and Petrochemical plants 
  • Shipbuilding industry 
  • Agriculture and food industry
  • Water  treatment facilities
  • Industrial walkways,  platforms, stair treads and drainage channels

Physical properties

  •  Resistance to corrosion of acids and aggressive chemical agents 
  • Non-magnetic plastic material, electrically non-conductive
  • Fire resistance: ASTM E-84 Class 2 (A) :1998

Open Moulded GRP Grating | Production Process

Glass Fibre Reinforced Plastic, commonly referred to as GRP, is a composite material consisting of a polyester or vinylester matrix resin reinforced with glass fibre. Moulded GRP gratings are produced using an open, heated mould and a wet lay-up technique with the continuous addition of glass fibres, chemical additives and pigment. The components are inserted into the mould in alternating layers wetted with resin. At the end of the forming process, the gratings are cooled and then removed from the mould. This production method results in a grating characterised by high bi-directional mechanical strength, both transverse and longitudinal, as well as resistance to corrosion and chemicals. Other important characteristics of GRP grating are its light weight, about 50 per cent lighter than steel, and its dielectric property, i.e. to act as an insulator when current flows.