Product directory

Fiberglass Grating Panels and Configurations

Molded and pultruded fiberglass grating made in house, with mini mesh, covered, clip and stair-tread products coordinated for the same order. Full panels or cut-to-size, with the support layout, resin, surface and fixing confirmed before quoting. The published 25/30/38 mm molded reference is USD 10.5–15.1/m² EXW for isophthalic polyester in ordinary environments; vinyl ester and custom configurations are quoted separately.

Molded and pultruded in house Full panels or cut to size Clips, covers and treads coordinated Price basis published
Stacks of yellow and green FRP grating panels and production molds inside the factory

Molded panels, pultruded sections and production molds in the factory. Photo: Dengtai Industry.

Terms

Product Family, Configuration and Order Terms

A product family describes how the grating is made. A configuration describes what can actually be quoted, inspected and delivered.

FRP and GRP grating
A composite panel made from glass reinforcement and a cured thermosetting resin. Different regions use FRP, GRP or fiberglass grating for the same family of products.
Product family
The manufacturing structure — molded, pultruded, mini mesh, covered, clips or stair treads. It describes how the product is made and how it carries load, not the full order specification.
Configuration
The named combination of product family, thickness or bar height, mesh or pitch, panel size, resin, surface, colour and fixing. A quotation is built from the configuration, not from the family name alone.
Molded grating
A one-piece panel molded with an integral mesh. The mesh runs in two directions, so the load path does not depend on one bar direction. It usually suits panels supported on all four edges.
Pultruded grating
A panel assembled from parallel pultruded I, T or WT bearing bars joined by cross rods. The main load path runs along the bearing bars, so the support direction and bar direction have to agree.
Mini mesh grating
A double-layer molded panel with a small upper mesh over a wider lower mesh. It reduces what falls through while remaining an open draining surface.
Covered or solid-top grating
A base panel with a cover layer, a patterned flat plate or an independent solid panel. It closes the surface, so drainage, joints, ventilation and the load basis of the assembly need their own review.
Clips and fixings
M, L and C clips that hold a panel to its support or join adjacent panels. They restrain the panel; they do not create a bearing support or increase the allowable span.
Stair treads
Load-bearing treads with their own nosing, direction and side support. They are selected separately from platform panels, even when the same resin and surface are used.
Full panel and cut-to-size
Full panels are the molded or assembled sheets the factory starts from. Cut-to-size pieces are produced to a cut list, with openings, edge sealing and piece marks agreed before production.
Load direction
The direction in which the panel is designed to carry its main load. Molded mesh is bidirectional; pultruded bars are directional. Rotating a directional panel changes the load path even when the outside size is unchanged.
Resin system
The thermosetting resin used with the glass reinforcement. Isophthalic unsaturated polyester, vinyl ester, epoxy and phenolic are different systems; the grade and formulation are checked against the actual exposure.

Product families

Six FRP Grating Product Families

Start with the structure and support layout, then move to the detail page for the family that fits.

Stack of yellow molded FRP grating panels on a pallet
Molded panels stacked on a pallet. Photo: Dengtai Industry.

Molded FRP grating

One-piece molded mesh with load in two directions, normally supported on all four edges. Common starting points are 25, 30 and 38 mm in a 38 × 38 mm mesh.

25 / 30 / 38 mm common; 38 × 38 mm mesh

Gray pultruded FRP grating with textured bearing bars and yellow pultruded profiles
Pultruded grating samples with I- and T-section bars. Photo: Dengtai Industry.

Pultruded FRP grating

I, T and WT bearing bars tied by cross rods, made to project dimensions. The panel carries load along the bars, so the supports and bar direction are reviewed together.

I, T and WT bars; made to order

Close-up of a green double-layer mini mesh FRP grating surface
Mini mesh close-up. The small upper mesh reduces what falls through. Photo: Dengtai Industry.

Double-layer mini mesh grating

A small upper mesh over a wider lower mesh — commonly 19 × 19 mm over 38 × 38 mm — to reduce what falls through while keeping drainage.

19 × 19 upper over 38 × 38 lower

Workers finishing yellow FRP grating panels in the factory
Factory finishing. Covered and solid-top formats are assembled to order; not a specific covered panel. Photo: Dengtai Industry.

Covered and solid-top configurations

A base mesh panel with a cover layer, or a patterned flat plate or independent solid panel. These close the surface and are quoted as an assembly.

Base plus cover layer or solid plate

Stainless M clip fitted across two bars of a yellow molded FRP grating panel
An M clip across two bars. The clip restrains the panel; it does not create a bearing support. Photo: Dengtai Industry.

Clips and fixings

M, L and C clips matched to the panel height, bar width and support, in galvanized or stainless steel. Supplied with the panel order; clips-only orders are not shipped.

M, L and C; galvanized or stainless

Yellow FRP grating treads fitted to an outdoor steel stair
FRP stair treads fitted to an outdoor steel stair. Photo: Dengtai Industry.

Stair treads

Load-bearing treads with their own nosing, direction and side support. Tread depth, nosing and fixing are selected from the stair drawing rather than from a platform panel size.

Nosing, direction and side support per drawing

Compare types

Molded, Pultruded, Mini Mesh, Covered, Clips and Treads

The load path and the job decide the family; the configuration follows.

Product familyHow it carries loadBest starting pointWhat to confirm
Molded grating Integral mesh in two directionsPanels supported on all four edges, walkways, platforms and general accessThickness, mesh, panel size, resin, surface, four-edge support and load
Pultruded grating Parallel I, T or WT bearing barsLong, straight runs with one clear span direction and supports at the bar endsBar section, bar direction, support spacing, clear span and deflection limit
Mini mesh Molded base with a smaller upper meshAreas where small objects must not fall through but drainage still mattersUpper and lower mesh, net opening, drainage, cleaning, mass and load
Covered or solid top Base panel plus cover layer or a solid plateCable trenches, utility pits and areas where the surface has to be closedHow the cover is joined, where water drains, added mass and the assembly load basis
Clips and fixings Mechanical restraint or edge connectionHolding panels to supports or joining adjacent panelsPanel height, bar width, support section, fixing count and exposure
Stair treads Tread spanning between stair stringers or supportsStairs and access routes, with nosing and side supportTread depth, nosing, direction, side support, load and fixing

Configuration fit

When We Can Quote Directly and When We Need a Review

A complete configuration can be quoted; an incomplete one can still start the review.

Specify this if…

  • You can describe how the panels are supported — all four edges, or a clear span in one direction between two supports.
  • You need full panels or cut-to-size pieces, with openings, edge sealing and piece marks coordinated.
  • You need the resin, surface, colour and fixing reviewed together for the actual environment.
  • You want clips, covers or stair treads supplied with the same order rather than sourced separately.

Look elsewhere if…

  • You need the support frame, handrail or civil works designed and approved. We supply the panels and agreed fabrication, not the structural design of the host structure.
  • You need a certified load class, fire rating or potable-water approval without a test scope. A product family name does not establish those approvals.
  • You need a retail single sheet shipped from stock. We are a factory and produce to the approved configuration and quantity.
  • You want one universal “best” grating without the support, load or exposure information. The product family follows those conditions.

Applications

Where These Products Are Used

Eight application areas, each with a different balance of support, load, drainage and exposure.

Industrial walkways and platforms

Access routes around tanks, pumps, conveyors and equipment, where the support layout and the walking surface decide the family.

Start with molded for four-edge framing or pultruded for a clear one-way span.

Wastewater and chemical areas

Wet, corrosive or wash-down areas where the resin and fixing are selected from the medium, concentration and contact type.

Vinyl ester is the usual starting direction; the grade is confirmed for the duty.

Trench and drainage covers

Covers that drain, retain small objects, close the surface or lift for access. The job decides the format before the size.

Open mesh, mini mesh, covered or solid top are different products.

Solar maintenance walkways

Walkway panels planned around existing rails, module rows and project cut sizes, with clips matched to the rail layout.

Confirm rail spacing, panel orientation and fixing positions.

Marine and offshore platforms

Salt exposure, wet surfaces and structural checks, with vinyl ester or phenolic directions considered for the duty.

Corrosion, fire, smoke and structural requirements are separate checks.

Stair treads and access routes

Treads with nosing, side support and a walking surface selected for the stair, not a cut-down platform panel.

Tread depth, nosing and fixing follow the stair drawing.

Food, beverage and washdown

Cleaning chemicals, organic soil and a surface that has to drain or be cleaned, with the resin and edge details confirmed together.

State the cleaning protocol, chemicals and temperature.

Architectural and tree surrounds

Visible panels where the opening, colour and walking surface matter, and the support around the tree or opening has to be planned.

The opening and support detail are part of the order, not a site afterthought.

Configuration

What a Complete FRP Grating Configuration Includes

Thickness, mesh, panel size, resin, surface, fixing and fabrication are selected together.

Request a Project Quote
Specification Value
Molded thickness 13–63 mm; 25 / 30 / 38 mm common Thickness is a configuration field, not a load class. The support, span, mesh, load and deflection limit decide the structural case.
Molded mesh 19 × 19 to 50 × 50 mm; 38 × 38 mm common Mesh is stated as bar pitch. The net opening is a separate dimension and decides what passes through.
Molded panel sizes 915 × 3050 to 1530 × 4000 mm 1000 × 4000 and 1220 × 3660 mm are common full-panel formats. Cut pieces are produced from the full panel.
Pultruded sections I, T and WT bearing bars; 25.4–50.8 mm bar height; 25.4–76.25 mm pitch The bar section and bar direction are part of the structural review. Panels are assembled to the project layout.
Pultruded panel layout Made to order from bearing bars and cross rods Width, bearing-bar length, cross-rod positions, end offsets and panel splits are confirmed on the drawing.
Mini mesh range 14–60 mm thickness; 19 × 19 or 20 × 20 mm upper mesh; 1000 × 4000 to 1527 × 4047 mm The upper mesh is what the product is bought for; the lower mesh, net opening and drainage are confirmed together.
Covered and solid top Base plus cover layer, patterned flat plate or independent solid panel The assembly, joint, drainage, ventilation and load basis are confirmed as one product.
Resin system Isophthalic polyester, vinyl ester, epoxy or phenolic direction The grade and formulation are checked against the medium, concentration, temperature and contact type. A resin family is not a chemical approval.
Surface and colour Concave, grit, inlaid grit, milled or checked surface; colour to order Grit adds texture. It is not a certified slip rating unless the project’s test method and report are supplied.
Fixing and fabrication M, L and C clips; cut-to-size, openings, edge sealing, piece marking Clips are matched to panel height, bar width and support. Openings interrupt bars and need support around the cut.
Load data Project-specific; no universal rating by family name Send the load type and value, contact area, clear span, support condition and any deflection limit.

Resin direction

Resin Directions at Product-Directory Level

The resin family is shortlisted from the duty; the grade and finished product still have to be confirmed.

Resin directionWhere it is consideredWhat to confirm
Isophthalic unsaturated polyester Ordinary environments and economical access panelsMedium, temperature, contact type and service-life target. Our reference formulation is around three years in ordinary service, with cracking possible from about one year.
Vinyl ester Chemical, wastewater and longer-life dutiesGrade, concentration, temperature, contact type and the supporting data for the finished product.
Epoxy Specific chemical or pultruded duties where the formulation is justifiedThe exact product and grade. Epoxy is not automatically better for every exposure.
Phenolic Fire, smoke or low-smoke requirementsTest standard, acceptance criteria and whether the required construction is available.

Range summary

FRP Grating Product Range at a Glance

Ranges are outer limits; the order is placed on a named structure and a named configuration.

Product familyThickness or bar heightMesh or pitchPanel size or formatQuote basis
Molded grating 13–63 mm19 × 19 to 50 × 50 mm915 × 3050 to 1530 × 4000 mmUSD 10.5 / 12.0 / 15.1 per m² for the 25 / 30 / 38 mm, 38 × 38 mm reference rows; other configurations quoted
Pultruded grating 25.4–50.8 mm bar height25.4–76.25 mm pitchAssembled to the project layoutQuoted per bar section, panel layout, resin and fixing
Mini mesh grating 14–60 mm19 × 19 or 20 × 20 mm upper mesh1000 × 4000 to 1527 × 4047 mmQuoted per configuration
Covered or solid top Base plus cover or plateConfirmed per assemblyMade to the opening or panel drawingQuoted per assembly, including the cover and joint detail
Clips and fixings Matched to panel heightNot applicableSupplied with the panel orderQuoted per piece, type and material
Stair treads Tread depth and height per drawingNosing and surface selected separatelyMade to the stair layoutQuoted per tread and fixing detail
Cut-to-size pieces From the selected full panelAny agreed mesh or pitchPer cut list, including openings and marksPanel plus cutting, edge sealing, packing and freight

Price basis

FRP Grating Product Price Basis

The molded standard rows have a published base; the other families are quoted from the configuration.

Molded standard rows start at USD 10.5/m²

The 25 mm, 38 × 38 mm molded row is USD 10.5/m² EXW; 30 mm is USD 12.0/m² and 38 mm is USD 15.1/m². These rows use an economical isophthalic unsaturated polyester with alumina filler for ordinary environments. A 1220 × 3660 mm sheet is 4.4652 m², so the plain 25 mm panel is about USD 46.9 before cutting, edge treatment, clips, packing and freight.

The reference resin is not a chemical-duty resin

Our experience with this economical formulation is around three years of service in ordinary environments, with cracking possible from about one year. It is not suitable for strong corrosive service and is not a vinyl ester price. Vinyl ester, epoxy and phenolic directions are quoted by grade against the medium, concentration, temperature, contact type and service-life target.

Pultruded, mini mesh and covered are configuration quotes

A pultruded panel depends on the bar section and layout; a mini mesh panel depends on both mesh layers; a covered panel depends on the assembly and joint. These products do not share one square-metre rate. Cutting, edge sealing, surface, clips, packing and freight are separate lines, and a quotation states the included scope.

Price basis: 17 October 2026, with a fixed planning conversion of USD 1 = CNY 6.5. An issued quotation confirms the current price, currency, scope and validity. The USD 10.5–15.1/m² rows are plain isophthalic unsaturated polyester panel references only; they are not a vinyl ester price, a project load rating or a chemical-compatibility approval.

From Product Family to a Quotable Configuration

An FRP grating product family describes how the panel is made and how it carries load. A configuration describes what can actually be ordered: the thickness or bar height, mesh or bar pitch, panel size, resin, surface, colour, fixing and any openings. Two panels can belong to the same family and still be different products because the configuration is different. This page is a product directory rather than a fixed catalogue: the detail pages carry the fuller tables, and the quotation is built from the drawing.

That distinction is the reason this page is organized by family first. Molded grating, pultruded grating, mini mesh, covered panels, clips and stair treads are not interchangeable. Once the family is fixed, the configuration review becomes much more specific: which thickness, which mesh, which resin and which fixing.

The factory supplies full panels and cut-to-size pieces. Cutting is not a separate product family; it is a fabrication step applied to the selected panel. Openings, edge sealing and piece marks are part of the same order because they change how the piece is made, packed and installed.

Molded or Pultruded: Start With the Support

Molded grating

Molded fiberglass grating is a one-piece panel with an integral mesh. The mesh runs in two directions, so the panel does not depend on a single bearing-bar direction. It is the usual starting point when the panel is supported on all four edges: a framed opening, a platform with perimeter support, a walkway with rails on both sides, or a cut piece that has to fit around existing equipment.

The common molded starting points are 25, 30 and 38 mm in a 38 × 38 mm mesh, but the range goes from about 13 to 63 mm with mesh from 19 × 19 to 50 × 50 mm. Thickness alone is not a load rating. The clear span, support condition, mesh, load and deflection limit decide whether a configuration is suitable.

Pultruded grating

Pultruded fiberglass grating is assembled from parallel I, T or WT bearing bars joined by cross rods. The main load path runs along the bars, so the supports have to run in the same direction as the span. It can suit long, straight runs, equipment platforms and areas where a deeper bar is needed in one direction.

The bar section, bar height, pitch, cross-rod positions and panel split are all part of the configuration. A pultruded panel that is rotated so the bars run the wrong way has the same outside size and a different load path. Mark the bearing direction on the drawing so the panel cannot be installed the wrong way round.

A mixed project is normal

One plant can use molded grating on a framed walkway, pultruded grating on a long platform, mini mesh around a small-object area and clips throughout. Each area should be quoted on its own configuration rather than one panel type being applied everywhere. That is also how a product directory stays useful: it helps the buyer choose the family, not pretend that one family fits every support.

Mini Mesh, Covered and Solid-Top Are Different Answers

Mini mesh is still an open grating. A small upper mesh — commonly 19 × 19 mm over a 38 × 38 mm lower mesh — reduces what falls through while keeping a draining surface. It is useful around small tools, car wash bays and service areas, but it is not a solid cover. The finer surface is heavier and can be harder to clean when the debris is sticky or fibrous.

Covered grating and solid-top panels close the surface. A covered grating may be a base panel with a cover layer; a patterned flat plate or an independent solid panel is a different construction. Closing the surface changes drainage, ventilation, joint detail, mass and the load basis of the assembly. A solid top does not make a trench or pit watertight by itself.

Clips are an accessory rather than a panel family. M clips usually hold a panel down onto a support, L clips hold a single bar at lighter positions, and C clips join adjacent panels. They are matched to the panel height, bar width and support. A clip does not create a bearing support or increase the allowable span.

Stair treads are also their own product. A tread has a nosing, a direction and side support that a cut-down platform panel does not automatically provide. Tread depth, nosing, fixing and load are selected from the stair drawing.

How Each Product Family Changes the Configuration

A complete configuration answers seven questions: what family, what thickness or bar section, what mesh or pitch, what panel or piece size, what resin, what surface and colour, and what fixing or fabrication. Openings, edge sealing and piece marks are added when the piece is not a plain rectangle.

For molded grating, the starting table is thickness, mesh, panel size and mass per unit area. For pultruded grating, it is the bar section, bar height, pitch, cross-rod positions and panel layout. For mini mesh, it is both mesh layers. For covered products, it is the assembly and the joint. For clips, it is the panel height, bar width and support. For stair treads, it is the tread drawing.

The same fields also make a quotation comparable. A quotation that says only “38 × 38 grating” does not say the thickness, resin, panel size, surface or fixing. A quotation that lists the configuration can be checked against the drawing and against another supplier’s offer.

Resin Selection Comes After the Duty, Not Before It

The resin family is selected against the medium, not against the word industrial. Isophthalic unsaturated polyester is a useful economical starting point for ordinary environments. Vinyl ester is the usual direction where chemical exposure, wastewater or a longer service-life target calls for it. Epoxy and phenolic directions are considered for specific duties. The grade, formulation, reinforcement and cure are confirmed with the finished product.

Our experience with the economical isophthalic polyester formulation is around three years of service in ordinary environments, with cracking possible from about one year. It is not suitable for strong corrosive service and should not be used as a long-life target. Vinyl ester is a different resin system and is quoted by grade against the actual duty.

Colour is a pigment choice, not a chemical rating. A grit surface is a texture, not a certified slip class. Fire, static and potable-water contact are separate requirements with their own test scope. State the standard and the product scope; a resin name or an oxygen-index result does not establish those approvals.

Custom Cutting, Openings and Edge Sealing

Cutting turns a full panel into the pieces on the installation drawing. The cut list should give length × width and quantity for each piece, with the openings, notches, curves and any critical dimension marked. The cut plan also affects the material charge because the pieces have to fit on the full panel and the offcut may not be usable.

Factory-cut green FRP grating pieces with rectangular openings and treated edges
Factory-cut pieces with openings and edge treatment. The cut list and piece marks travel with the packing list. Photo: Dengtai Industry.

An opening interrupts bars. Sealing the cut edge protects the edge; it does not restore the bars that were removed. Support around the opening has to be part of the layout, and the piece should be marked so it returns to the same position after removal. Curved cuts and tight notches may need a different cut plan from a straight strip.

Quality Checks and Export Packing

The factory check starts with the approved drawing and the cut list. Pieces are checked for appearance, dimensions, openings, edge treatment and piece marks. The material test report is kept with the order documentation. Packing is planned around the piece size and the transport route: EPE foam, stretch film and wooden pallets or iron supports are the usual export packing.

The material report is not a product certificate. Report HZTC/BG-24051102 records material-level properties, but it does not name the model, thickness, mesh or resin. If a project requires a load class, fire rating, potable-water approval or third-party inspection, that requirement has to be stated with the product scope and quoted separately.

How to Compare Two Product Quotes

Compare the same family, resin, panel structure, mesh or pitch, thickness or bar height, panel size, cut plan, edge treatment, fixing, packing and delivery scope. A lower square-metre rate can be misleading if one offer charges piece area and the other charges sheet area, or if one includes edge sealing and the other does not.

Ask whether the quotation is for full panels or cut pieces, whether the offcut is included, and how many pieces the cut plan produces. Ask which resin grade and surface are included, which clip type and material are quoted, and what documentation is in the price. A product directory can help choose the family; only a configuration-level comparison shows which offer is actually cheaper for the same job.

What We Supply and What Stays With the Project

We supply the panel, cut pieces, edge treatment, agreed clips and the coordinated packing. We can review the support layout, the load information and the exposure, propose a product family and quote the factory scope. We do not design the concrete or steel support structure, the guardrails, the lifting plan or the installation method unless that scope is separately agreed in writing.

The project remains responsible for the condition of the existing structure, the bearing surfaces, the connection to the surrounding floor, the structural approval of the installed system and any site-specific safety requirement. Clear scope at inquiry stage avoids the common mismatch where a panel fits the opening but was never intended for the load or the exposure.

Prepared by Dengtai Industry from our factory’s grating, resin and fabrication experience. Where a product condition is not documented, the limit is stated rather than filled with a general claim.

Order sequence

How a Product Configuration Becomes an Order

Choose the family, confirm the configuration, approve the cut list, then produce and pack.

01
Choose the product family from the support

Four-edge framing usually points to molded grating; a clear one-way span points to pultruded. Mini mesh is chosen for object retention, and covered or solid-top formats are chosen when the surface has to be closed.

02
Send the support drawing and duty

Include panel or cut sizes, quantity, clear span, load, environment, cleaning, fixing and delivery. A sketch is enough to start; unknown values can be marked as unknown.

03
Agree the configuration

Confirm thickness or bar section, mesh or pitch, resin, surface, colour, fixing and any openings. Each change is recorded against the drawing revision rather than left to the production floor.

04
Approve the cut list and sample

Check piece sizes, joint positions, openings, edge treatment and marks. A standard sample can confirm the mesh and surface; a custom sample is quoted when the configuration is new.

05
Produce, inspect and pack

Production is normally 15–30 calendar days from deposit. Pieces are checked against the approved list, then packed for the agreed transport route with packing photographs and a packing list where required.

06
Receive and install against the drawing

Check bearing, level, clip fit and piece marks before fixing. Do not force a panel onto a support it does not reach; a clip cannot correct a frame that is out of level.

Factory evidence

What We Can Confirm Before Shipment

Cutting, marking and packing are factory scope; the material report is evidence at the level it actually covers.

Packed FRP grating panels loaded onto trucks outside the factory
Packed panels being loaded for shipment. Packing photographs and the packing list can be provided with the order. Photo: Dengtai Industry.

Material test report, with its limit

Report HZTC/BG-24051102, issued on 17 May 2024 by Hebei Haozheng Testing Services Co., Ltd., records appearance, Barcol hardness 45, water absorption 0.335%, oxygen index 28.5%, tensile strength 74.2 MPa and a load test at a design load of 4 kN/m² over a 600 mm span. The report does not name the model, thickness, mesh or resin, so it is material-level evidence rather than a rating for a specific product. An oxygen index is not an ASTM E84 flame-spread class.

Factory cutting and piece marking

A checked cut list is the normal route for openings, curved pieces and replacement panels. Pieces are cut, cut edges and drilled faces are sealed where required, and marks are carried through to the packing list. An opening still needs support around the remaining cut bars.

Read the cutting and sealing guide

Packing and loading record

Export orders are usually packed with EPE foam, stretch film and wooden pallets or iron supports. We can provide packing photographs and the packing list; a project-specific inspection or third-party certificate is quoted separately when required.

Review quality and documentation

Project inputs

What to Send for a Product and Configuration Quote

Ten items, most of which come from the support drawing, the cut list and the exposure.

  • Product family or support layout — Molded on four edges, pultruded over a clear span, mini mesh for object retention, or another family. A sketch is enough to start.
  • Panel or cut sizes — Length × width and quantity per size, including any opening, and which bars may be cut.
  • Load and deflection — Pedestrian, trolley, equipment or vehicle load with value and contact area, plus any deflection limit.
  • Environment — Chemicals with concentration and temperature, salt, chlorine, UV exposure and the cleaning method.
  • Resin direction — The duty and service-life target, or the information needed to shortlist polyester, vinyl ester, epoxy or phenolic.
  • Surface and colour — Concave, grit or inlaid grit, colour, slip-test requirement and whether the surface has to match existing work.
  • Fixing — Clip type, material, support section, fixing positions and whether the panel has to be removable.
  • Openings and edge treatment — Pipe, cable, valve or drainage openings with position and size, and whether cut edges or drilled faces need sealing.
  • Marking and packing — Piece marks tied to the installation layout, packing method and any loading or inspection photograph required.
  • Documents and delivery — Test report, inspection, packing list, destination, trade term and required date.

Request a quote

Send the Product Family or the Support Layout

If the family is not decided, describe how the panels are supported and what crosses them.

  • Molded and pultruded grating produced in house
  • Full panels or factory cut-to-size pieces
  • No fixed minimum order quantity
+ More specifications (size, quantity, span, environment)

PDF, DWG/DXF, image or Office file. If the file is larger than about 10 MB, email it to jouth@frpgratingco.com instead.

Molded and pultruded grating · Full panels or cut to size · No fixed minimum order

FRP Grating Product Questions

What FRP grating products do you manufacture?

We supply fiberglass grating products including molded grating, pultruded grating, double-layer mini mesh, covered and solid-top configurations, clips and stair treads. Molded and pultruded production is in house; cut-to-size pieces, openings, edge sealing and export packing are coordinated with the order.

What is the difference between molded and pultruded grating?

Molded grating is a one-piece panel with an integral mesh that carries load in two directions, so it normally suits four-edge support. Pultruded grating is assembled from parallel I, T or WT bearing bars, so the main load follows the bars and the supports have to run in the matching direction.

Which grating type should I start with?

Start with the support layout. Four-edge framing usually points to molded grating; a clear span between two supports usually points to pultruded grating. Mini mesh is a molded format chosen when the upper opening has to be smaller. Covered and solid-top formats are selected when the surface has to be closed.

What sizes are available?

Molded panels range from about 915 × 3050 mm to 1530 × 4000 mm, with 1000 × 4000 and 1220 × 3660 mm common. Mini mesh panels range from 1000 × 4000 to 1527 × 4047 mm. Pultruded panels are assembled to the project dimensions rather than a fixed stock size.

Can you cut panels to size?

Yes. Send the cut list with length × width and quantity per piece. Cutting is quoted from the actual sizes and nesting loss. Simple straight cutting has been quoted at about CNY 5/m² as a planning example; complex openings, angles and edge sealing are quoted from the drawing.

Can you cut openings, curves and angles?

Yes, when the geometry is on the approved drawing. An opening interrupts bars, so support around the remaining bars is part of the review. Curved cuts, notches, drilled faces and edge sealing are quoted separately, and pieces can be marked to the installation layout.

What resin systems are available?

Isophthalic unsaturated polyester is the economical starting point for ordinary environments. Vinyl ester is the usual direction for chemical, wastewater or longer-life duties. Epoxy and phenolic directions are considered for specific requirements. The grade and formulation are confirmed against the medium, concentration, temperature and contact type.

How long do FRP grating products last?

It depends on the resin, medium, temperature, load, cleaning and support condition. Our experience with better resins such as vinyl ester has exceeded ten years in some duties, while the economical polyester reference may crack from about one year and last around three years in ordinary environments. These are experience figures, not a warranty.

How much does FRP grating cost?

The published molded reference is USD 10.5/m² for 25 mm, USD 12.0/m² for 30 mm and USD 15.1/m² for 38 mm, in a 38 × 38 mm mesh with isophthalic polyester and alumina filler. Pultruded, mini mesh, covered and stair-tread products are quoted by configuration. Cutting, edge treatment, clips, packing and freight are separate.

Why is only the molded panel priced per square metre?

The molded rows share a named panel structure and mesh, so a square-metre reference is useful. Pultruded grating depends on the bar section and layout; mini mesh depends on two mesh layers; covered panels depend on the assembly and joint. A single rate would be misleading for those products.

Is the USD 10.5/m² price for vinyl ester?

No. The USD 10.5/m² row is an isophthalic unsaturated polyester panel reference. Vinyl ester is a different resin system and is quoted by grade against the actual duty. Do not use the polyester row as a vinyl ester budget without confirming the scope.

What is the minimum order and lead time?

A standard 3 × 3 cell sample is free with customer-paid freight. Production is normally 15–30 calendar days from deposit, depending on the configuration and quantity. There is no fixed minimum order stated here; confirm the current MOQ with the quotation.

Do you supply clips with the panels?

Yes. M, L and C clips are matched to the panel height, bar width and support, in galvanized or stainless steel. They are listed separately in the quotation and supplied with the panel order; clips-only orders are not shipped. A clip restrains the panel; it does not create a bearing support.

Can you supply covered or solid-top panels?

Yes, where the construction is confirmed. Covered grating, patterned flat plate and independent solid panels are different constructions. Confirm how the cover is joined, where water drains, how the joint is sealed and what the load basis of the assembly is. A solid top does not make the trench or pit watertight by itself.

Can you supply stair treads?

Yes. Send the stair drawing with tread depth, nosing, side support, fixing positions, load and surface. Stair treads are selected separately from platform panels because the nosing, direction and side support change the product.

Do you provide load tables?

We can discuss the available load and deflection information for a matching structure. A table is only valid for its stated product, support condition, span and load case. Send the actual load, clear span, support layout and deflection limit so the configuration can be checked against the right data.

Do you provide test reports?

We can provide the material test report we hold and the packing or inspection records agreed for the order. The report is material-level evidence; it does not automatically certify a particular product, load class or fire rating. State the standard and the product scope you need.

Can you match a colour?

Colour is pigmented to order and can be matched to a sample or a stated reference where the resin system allows. Colour is not a chemical rating and does not replace the resin selection. Send the reference and the exposure so both can be reviewed together.

Can you pack for export?

Yes. Export orders are usually packed with EPE foam, stretch film and wooden pallets or iron supports. Packing photographs and the packing list can be provided. A project-specific inspection or third-party certificate is quoted separately when required.

Can you send a sample?

A standard 3 × 3 cell sample is free with customer-paid freight. A custom sample in a different resin, mesh, surface or colour is quoted. The sample confirms the appearance and mesh; it does not replace the load or chemical review for the supplied configuration.

Can you supply replacement pieces?

Yes, if the original configuration and marks are known. Send the piece size, thickness or bar section, mesh, resin direction, surface, fixing and a photo of the existing part. If the support or duty has changed, review the load and fixing rather than ordering by outside size alone.

What should I send for a quote?

Send the product family or support layout, panel or cut sizes with quantity, load and deflection, environment and cleaning, resin direction, surface and colour, fixing, openings, marking and delivery. A drawing or sketch is the fastest way to make the quotation specific.

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