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Pultruded Gratings for Platform, Deck, Stairs & Walkway

Pultruded fiberglass grating is made by the process of pultrusion, which pulls the glass strands through a machine and wraps in a glass fabric, then seals together with a resin. It is manufactured by assembling two structural fiberglass shapes (cross and bearing bars) into a grid pattern, which increases the support and stability of the grating under extreme loads.

With its much higher glass content, pultruded fiberglass grating has unidirectional strength, resulting in greater span capability than molded fiberglass grating. This makes it specified for applications that require larger spans or heavier loading.

Pultruded grating comes in many shapes and sizes to meet wide variety of applications. The standard shapes include:

  • I-bar
    I-bar allows more open space between the bearing bars, it is an industrial strength fiberglass grating, intended for applications with heavy loads and extreme conditions.
  • T-bar
    T-bar provides more surface area, perfect for pedestrian applications.
  • Heavy load bar (Rectangular bar)
    Heavy load bar is designed for extreme loads and the utmost of corrosive environments.
It shows several piles of pultruded fiberglass gratings in yellow, they have corrugated surface.
PFG-01: Pultruded fiberglass grating with corrugated surface.
There are several piles of pultruded fiberglass gratings in gray, they have gritted surface.
PFG-02: Gray pultruded fiberglass gratings with gritted surface.
It is one piece of pultruded fiberglass grating with gritted surface, the bar type is T bar.
PFG-03: T bar style pultruded fiberglass grating for pedestrian applications.
This is heavy load pultruded fiberglass grating in dark gray.
PFG-04: Heavy load pultruded fiberglass grating for extreme loads.
It shows one yellow pultruded FRP grating with covered gritted surface.
PFG-05: Pultruded fiberglass grating with covered and gritted surface is suitable for special applications.
There are five pultruded fiberglass gratings shown to us, the colours are blue, yellow, light gray and black.
PFG-06: We offer wide range of pultruded fiberglass gratings, subject to order colours, surfaces or sizes.

Standard top surfaces

  • Gritted surface.
  • Smooth surface.
  • Corrugated surface.
  • Covered and gritted.

Key features

  • Chemical resistance.
  • High glass content for greater impact resistance.
  • Corrosion resistance.
  • UV protected.
  • Lightweight yet durable.
  • Fire retardant.
  • Low thermal conductivity.
  • Suitable for all environments, exterior or interior.
  • Slip-resistance top surface.
  • Easy fabrication and maintenance.
  • Cost effective replacement for metal gratings.
  • Extended life.


  • Standard colour: yellow, light gray, dark gray, black. (Other colours like red or green is also available.)
  • Resin: polyester resin, vinyl ester resin.
  • Can be fixed to: steel, wood or concrete.
  • Fixing method: a wide selection of grating clips.
The picture shows the dimension figure of I bar profile.
PFG-07: I bar style dimension figure.
Pultruded fiberglass grating - I bar style dimensions
Product code Bar type Open rate (%) Thickness T (inch) Top bar width A (inch) Bar space B (inch)
PFG-I60100 I 60 1 0.6 1.5
PFG-I50100 I 50 1 0.6 1.2
PFG-I40100 I 40 1 0.6 1.0
PFG-I60120 I 60 1.2 0.6 1.5
PFG-I50120 I 50 1.2 0.6 1.2
PFG-I40120 I 40 1.2 0.6 1.0
PFG-I60125 I 60 1.25 0.6 1.5
PFG-I50125 I 50 1.25 0.6 1.2
PFG-I40125 I 40 1.25 0.6 1.0
PFG-I60150 I 60 1.5 0.6 1.5
PFG-I40150 I 40 1.5 0.6 1.0
PFG-I60200 I 60 2 0.6 1.5
PFG-I50200 I 50 2 0.6 1.2
PFG-I40200 I 40 2 0.6 1.0
It shows the dimension figure of T bar profile.
PFG-08: T bar style dimension figure.
Pultruded fiberglass grating - T bar style dimensions
Product code Bar type Open rate (%) Thickness T (inch) Top bar width A (inch) Bar space B (inch)
PFG-T38100 T 38 1 1.5 2.4
PFG-T25100 T 25 1 1.5 2
PFG-T18100 T 18 1 1.5 1.8
PFG-T12100 T 12 1 1.5 1.7
PFG-T38150 T 38 1.5 1.5 2.4
PFG-T25150 T 25 1.5 1.5 2
PFG-T12150 T 12 1.5 1.5 1.7
PFG-T50200 T 50 2 1 2
PFG-T33200 T 33 2 1 1.5
This picture shows the dimension figure of heavy load bar profile.
PFG-09: Heavy load bar style dimension figure.
Pultruded fiberglass grating - heavy load bar style dimensions
Product code Bar type Open rate (%) Thickness T (inch) Top bar width A (inch) Clearance width C (inch)
PFG-HL60200 Heavy load 60 2 0.6 0.9
PFG-HL50200 50 2 0.6 0.6
PFG-HL40200 40 2 0.6 0.4
It shows that how the width and length are measured for pultruded fiberglass grating.
PFG-10: The length of pultruded fiberglass grating is measured by the bearing bar.
Pultruded fiberglass grating standard panel size (W × L)
3' × 8' 4' × 8' 5' × 8'
3' × 10' 4' × 10' 5' × 10'
3' × 12' 4' × 12' 5' × 12'
3' × 20' 4' × 20' 5' × 20'
3' × 24' 4' × 24' 5' × 24'


Pultruded fiberglass grating is designed and used in a wide variety of applications, especially in heavy traffic areas, such as walkways, platforms, swimming pool overflow, bridges, stair ramps, trench cover, manhole cover and commercial-grade catwalks.

Typical used fields

Marine, food & beverage, refining, chemical, water and wastewater treatment, pulp & paper.

It shows that by the sea, two benches for rest are installed on the pultruded gratings.
PFG-11: FRP pultruded gratings applied as platform by the sea.
It show that the fiberglass pultruded gratings are installed as walkways near the decking.
PFG-12: Walkways - pultruded fiberglass grating application.
The picture shows that in a manhole, there are ladders and installed pultruded fiberglass grating in yellow.
PFG-13: Pultruded FRP grating works as safety landing in a manhole.
It shows the pultruded fiberglass gratings in gray are installed above the sea and there is handrail for protection.
PFG-14: Pultruded fiberglass grating for marine application.
It shows that in the middle of the road, one green area is installed with green pultruded fiberglass grating.
PFG-15: Pultruded fiberglass grating works as platform for the green belt.
It shows that above one trench drain, the yellow pultruded fiberglass grating is installed.
PFG-16: Pultruded fiberglass grating can be used as trench cover.
There are yellow pultruded fiberglass gratings installed with handrails forming the stairs for cooling tower.
PFG-17: Pultruded fiberglass grating as stair treads for entering cooling tower.
It shows that inside the tunnel, there are yellow pultruded fiberglass gratings.
PFG-18: Pultruded fiberglass grating for safe footing in tunnel.
It shows the drainage channel is covered by the pultruded fiberglass grating.
PFG-19: Pultruded fiberglass grating is perfect for working as drainage channel cover.
Next to the railway tracks, there are gray pultruded FRP gratings.
PFG-20: Pultruded FRP grating serves railway system.

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