GRP / FRP Grating for Marine, Offshore and Industrial Flooring

Lightweight, anti-slip and corrosion-resistant fiberglass grating for marine decks, offshore platforms, industrial walkways, drainage covers, stair treads and access flooring.

GRP / FRP Grating for Marine and Industrial Access Flooring

GRP / FRP grating is a lightweight, anti-slip and corrosion-resistant flooring solution made from fiberglass reinforced plastic. It is widely used for marine decks, offshore platforms, dock walkways, industrial platforms, drainage covers, stair treads and access flooring where water drainage, walking safety and corrosion resistance are important.

Compared with steel grating, fiberglass grating is easier to handle, resistant to rust, and suitable for wet, salty, chemical or outdoor environments. The open mesh design allows water, dust and small debris to pass through, helping to keep walkways safer and cleaner.

YT Marine manufactures GRP / FRP grating panels in different mesh sizes, thicknesses, colors and surface finishes. Standard panels, cut-to-size panels, stair treads and trench covers can be made according to project drawings or installation requirements.

GRP / FRP grating can be reviewed together with our marine deck and mooring equipment when buyers need deck flooring, walkways, access panels, anchors, chains or other supporting products for marine projects.

Quick Information About GRP / FRP Grating

GRP / FRP grating is a lightweight, corrosion-resistant and anti-slip flooring material used for marine decks, offshore platforms, industrial walkways, drainage covers, stair treads and access platforms. It is suitable for wet, corrosive, chemical and outdoor environments where steel grating may require frequent maintenance.

Product Type

GRP Grating / FRP Grating / Fiberglass Grating

Material

Fiberglass Reinforced Plastic with Resin System Options

Surface Options

Concave Surface / Grit Top / Anti-Slip Surface

Color Options

Green / Yellow / Grey / Black / Customized Colors

Panel Options

Standard Panels / Cut-to-Size Panels / Stair Treads / Trench Covers

Applications

Marine Decks, Offshore Platforms, Industrial Walkways, Drainage Covers and Access Flooring

GRP / FRP grating can be manufactured in different mesh sizes, thicknesses, colors and surface finishes, with cutting and layout options available according to project drawings or installation requirements.

Key Features of GRP / FRP Grating

GRP / FRP grating is designed for marine, offshore and industrial flooring areas where corrosion resistance, drainage, anti-slip performance and easy installation are important. With a lightweight fiberglass structure, open mesh design and optional surface finishes, it is suitable for wet, salty, chemical and outdoor environments.

Lightweight Structure

GRP / FRP grating is lighter than steel grating, making it easier to move, cut, install and maintain on site.

Corrosion Resistant

Fiberglass reinforced plastic resists rust and corrosion, making it suitable for seawater, chemical, wet and outdoor environments.

Anti-Slip Surface

Concave or grit top surfaces help improve walking safety for decks, platforms, stairs and access walkways.

Good Drainage

The open mesh structure allows water, dust and small debris to pass through, helping keep working areas cleaner and safer.

Flexible Panel Options

Standard panels, cut-to-size panels, stair treads and trench covers can be made according to project drawings.

Wide Applications

Suitable for marine decks, offshore platforms, industrial walkways, chemical plants, drainage covers and access flooring.

Common Applications of GRP / FRP Grating

GRP / FRP grating is widely used in marine, offshore, industrial and public access areas where corrosion resistance, drainage, anti-slip performance and lightweight handling are required. Different panel thicknesses, mesh sizes, resin systems and surface finishes can be selected according to the working environment and load requirements.

For shipyard or repair yard working areas, GRP / FRP grating can also be used together with shipyard and repair yard rubber products such as rubber airbags, fenders, sealing profiles and protection components.

For a practical overview of resin selection, low-temperature performance, support span and thickness for working vessels, see our FRP grating selection guide for fishing and shrimp vessels.

Marine Deck Walkways

Used for ship decks, marine access walkways and wet working areas where anti-slip surface and corrosion resistance are important.

Offshore Platforms

Suitable for offshore platforms, service walkways, maintenance areas and exposed access structures.

Dock and Pier Flooring

Used for dock walkways, pier platforms, marina access areas and waterfront flooring applications.

Walkways and Catwalks

Used for industrial walkways, catwalks and access paths where drainage and anti-slip performance are needed.

Industrial Platforms

Applied in factories, power plants, workshops and equipment platforms where lightweight and durable flooring is required.

Chemical and Corrosive Areas

Suitable for chemical plants, wastewater treatment areas and other corrosive environments with proper resin system selection.

Drainage Covers and Stair Treads

Can be cut or manufactured as trench covers, drainage covers, stair treads and access flooring panels.

Water Treatment Areas

Suitable for sewage treatment plants, water processing areas and wet environments requiring corrosion-resistant flooring.

GRP / FRP Grating Resin System Options

Different working environments require different resin systems for GRP / FRP grating. The resin type affects corrosion resistance, chemical resistance, fire retardant performance and suitable working temperature. YT Marine can help select the resin system according to the installation environment and project requirements.

Resin Type	Resin Base	Typical Features	Suitable Environments	Working Temperature
Type O	Orthophthalic Polyester Resin	Good corrosion resistance and fire retardant performance	Seawater, weak acid and general corrosive environments	-40~+60°C
Type I	Isophthalic Polyester Resin	Very good chemical resistance and fire retardant performance	Medium concentration inorganic acids, inorganic alkalis and special environments	-45~+80°C
Type V	Vinyl Ester Resin	Excellent corrosion resistance and higher chemical resistance	Strong corrosive environments, including acid and alkali exposure	-50~+100°C

Resin system selection should be confirmed according to the actual chemical exposure, temperature, fire retardant requirement, load condition and installation environment.

The most suitable resin cannot be selected by temperature alone. Marine exposure, load type and support spacing should also be considered. Learn more about selecting FRP grating for cold and seawater-exposed vessel decks.

GRP / FRP Grating Specifications and Size Options

GRP / FRP grating panels are selected according to working environment, load requirement, mesh size, panel thickness, surface finish and installation layout. YT Marine manufactures molded and cut-to-size fiberglass grating panels for marine, offshore and industrial flooring applications.

Standard GRP / FRP Grating Options

Item	Options
Product Type	GRP Grating / FRP Grating / Fiberglass Grating
Grating Type	Molded Grating / Pultruded Grating / Cut-to-Size Panels
Material	Fiberglass Reinforced Plastic with resin system options
Surface Finish	Concave Surface / Grit Top / Anti-Slip Surface
Panel Thickness	Common thickness options available according to load and application requirements
Mesh Size	Standard mesh sizes or project-specific options according to drawings
Color Options	Green / Yellow / Grey / Black / Customized Colors
Panel Options	Standard Sheets / Cut Panels / Stair Treads / Trench Covers
Applications	Marine decks, offshore platforms, industrial walkways, drainage covers and access flooring
Selection Basis	Load requirement, span, thickness, mesh size, resin type, surface finish and installation layout

GRP / FRP grating can be manufactured in standard panels or cut-to-size sections. Final thickness, mesh size, color, resin system, surface finish and panel layout can be confirmed according to project drawings or site installation requirements.

GRP / FRP Grating Specification

GRP / FRP grating panels are available in different thicknesses, panel sizes, mesh sizes and weight options. The following specifications are for common reference. Final panel size, mesh design and load requirement can be confirmed according to project drawings or installation conditions.

Standard GRP / FRP Grating Specifications

Item	Panel Thickness (mm)	Panel Size (mm)	Mesh (mm)	Panel Weight (kg)	Weight (kg/㎡)
1	16	1220 × 3660	38 × 38	37	8.3
2	25	1220 × 3660	38 × 38	55	12.2
3	25	1000 × 4000	40 × 40	49	12.2
4	25	1220 × 3966	100 × 25	62	13.8
5	30	1000 × 4000	40 × 40	60	14.8
6	30	1000 × 4000	20 × 20	72	18
7	30	1220 × 3660	38 × 38	66	14.7
8	38	1247 × 4047	20 × 20	115	22.7
9	38	1000 × 4000	20 × 20	90	22.5
10	38	1220 × 3660	38 × 38	84	18.8
11	38	1525 × 3966	38 × 38	114	18.8
12	40	1000 × 4000	40 × 40	78	19.5
13	42	1220 × 3660	38 × 38	92	20.8
14	50	1220 × 3660	50 × 50	100	22.4
15	65	1220 × 3660	38 × 38	252	56.4

Available Mould and Panel Options

Panel Size (mm)	Mesh (mm)	Remark
3660 × 1220 × 15	50 × 50
3660 × 1220 × 16 + 3	38 × 38	Double bar, fiberglass decking grating
4047 × 1007 × 30	40 × 40	Mini-mesh available, size: 20 × 20 mm
2007 × 1007 × 30	40 × 40
4000 × 1000 × 30	40 × 40
3000 × 1000 × 30	40 × 40
2000 × 1000 × 30	40 × 40
4047 × 1007 × 38	40 × 40
2007 × 1007 × 38	40 × 40
4000 × 1000 × 38	40 × 40
3000 × 1000 × 38	40 × 40
2000 × 1000 × 38	40 × 40
3966 × 1530 × 38	38 × 38
3660 × 1220 × 25	100 × 25
3000 × 1000 × 25	100 × 25
3660 × 1220 × 65	38 × 38	Heavy duty grating
4000 × 1000 × 38	40 × 40	Rectangle mesh, reinforced solid top grating

The above specification values are for reference only. Final panel thickness, mesh size, resin system, surface finish, color, cutting layout and load requirement can be confirmed according to project drawings or site installation requirements.

Need GRP / FRP Grating for Your Project?

Send us your panel size, mesh size, thickness, resin requirement, color and installation layout. YT Marine can manufacture GRP / FRP grating panels, stair treads and trench covers according to your project requirements.

Load and Deflection Reference for GRP / FRP Grating

Load and deflection performance depends on panel thickness, mesh size, span, support method and load type. The reference chart below shows typical load and deflection information for GRP / FRP grating panels. Final load capacity should be confirmed according to project drawings, installation layout and working conditions.

Quality Inspection Before Shipment

Before shipment, GRP / FRP grating panels are checked according to order requirements, including panel size, thickness, mesh size, surface condition, color, cutting layout, quantity and packing condition. For cut-to-size panels, stair treads or trench covers, dimensions and layout can be confirmed according to project drawings before delivery.

Panel size and thickness checking
Mesh size and open area confirmation
Surface condition and anti-slip finish inspection
Color, resin system and appearance checking
Cutting layout and edge condition confirmation
Quantity, marking and packing inspection before shipment

GRP / FRP Grating Panels and Profile Gallery

GRP / FRP grating panels are available in different colors, mesh sizes, thicknesses and surface finishes. The following gallery shows typical panel types, profile samples and stock grating options for different flooring and access applications.

FAQ About GRP / FRP Grating

What is GRP / FRP grating used for?

GRP / FRP grating is used for marine decks, offshore platforms, dock walkways, industrial platforms, drainage covers, stair treads and access flooring. It provides a lightweight, anti-slip and corrosion-resistant flooring solution for wet, chemical, salty and outdoor environments.

What is the difference between GRP grating and FRP grating?

GRP means glass reinforced plastic, while FRP means fiberglass reinforced plastic. For grating products, both names usually refer to fiberglass reinforced grating panels used for walkways, platforms, trench covers and industrial flooring.

Can the panel size and mesh size be customized?

Yes. GRP / FRP grating can be manufactured in standard panel sizes or cut to size according to project drawings. Panel thickness, mesh size, color, surface finish and cutting layout can be confirmed based on the installation requirements.

Which resin system should I choose for FRP grating?

The resin system should be selected according to the working environment. Orthophthalic resin is suitable for general environments, isophthalic resin offers better chemical resistance, and vinyl ester resin is recommended for stronger corrosive environments such as acid or alkali exposure.

Is GRP / FRP grating suitable for marine and offshore environments?

Yes. GRP / FRP grating is corrosion-resistant, lightweight and suitable for wet or saltwater environments. It is commonly used for marine deck walkways, offshore platforms, dock access areas and other exposed flooring applications.

What information is needed for a quotation?

For an accurate quotation, please provide panel size, thickness, mesh size, resin type, surface finish, color, quantity, cutting layout and application environment. If drawings are available, they will help confirm the final grating layout and specifications.

Need GRP / FRP Grating for Your Flooring Project?

We manufacture fiberglass grating panels with different mesh sizes, thicknesses, resin systems, colors and anti-slip surface options for marine, offshore and industrial access flooring.

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