F1-GRID · pultruded grating
Select pultruded fiberglass grating for one-way spans, industrial platforms and walkways. Compare 36 T-bar, I-bar and specialty configurations with matched M/J/T clips.
Whole panels or drawing-based requirements. Quantities, fabrication and delivery scope confirmed with your quote.
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Start with what you know. Keep unknown details for review; attach drawings on the contact form.
For F1's glass-reinforced products, pultruded fiberglass grating means an open, one-way glass-fiber-reinforced polymer (GFRP) panel assembled from pultruded I-bar or T-bar bearing members and cross-rods. Project specifications often call the same product pultruded FRP grating; the quoted series, resin system, surface and load/deflection table still control.
Every selection starts with the clear span and bearing-bar direction. Match the series to load, deflection, resin, fire, slip and opening requirements; then issue the panel cut plan and M/J/T hold-down arrangement on the approved project drawing.
Wide-top T-shaped bearing bars create a comfortable walking surface while retaining open drainage. Dedicated series reduce the dominant opening for pedestrian and accessibility-governed routes.
Pultruded I-shaped bearing bars concentrate continuous glass reinforcement in the span direction. Select the series from support spacing, deflection limit, open area and project load case.
High-load rows use deeper or more closely spaced bearing bars; cooling-tower rows prioritize open area and airflow. Neither label replaces the project-specific load/deflection table.
Compare all 36 bearing-bar configurations below. Dimensions are millimeters; weight is nominal kg/m². Approximate inch depths are for reference. Choose a row to prefill your quotation request. Confirm resin, dimensions, tolerances and project load/deflection data before release.
Wide-top T bearing bars for pedestrian access and reduced clear openings.
| Type | Depth (mm) | Bearing-bar center (mm) | Cross-bar center (mm) | Open area | Weight (kg/m²) | Quotation |
|---|---|---|---|---|---|---|
| T-1210 | 25≈ 0.984 in | 43.4 | 152.40 | 12% | 14.5 | Quote this spec: T-1210 |
| T-1810 | 25≈ 0.984 in | 50.8 | 152.40 | 18% | 13.8 | Quote this spec: T-1810 |
| T-2510 | 25≈ 0.984 in | 50.8 | 152.40 | 25% | 13.6 | Quote this spec: T-2510 |
| T-3310 | 25≈ 0.984 in | 61.0 | 152.40 | 33% | 11.2 | Quote this spec: T-3310 |
| T-3810 | 25≈ 0.984 in | 61.0 | 152.40 | 38% | 10.2 | Quote this spec: T-3810 |
| T-1215 | 38≈ 1.496 in | 43.3 | 152.40 | 12% | 19.6 | Quote this spec: T-1215 |
| T-2515 | 38≈ 1.496 in | 50.8 | 152.40 | 25% | 16.7 | Quote this spec: T-2515 |
| T-3815 | 38≈ 1.496 in | 61.0 | 152.40 | 38% | 14.2 | Quote this spec: T-3815 |
I-bar configurations and deeper T-bar options for one-way industrial platform spans.
| Type | Depth (mm) | Bearing-bar center (mm) | Cross-bar center (mm) | Open area | Weight (kg/m²) | Quotation |
|---|---|---|---|---|---|---|
| I-4010 | 25≈ 0.984 in | 25.4 | 152.40 | 40% | 17.1 | Quote this spec: I-4010 |
| I-5010 | 25≈ 0.984 in | 30.0 | 152.40 | 50% | 14.2 | Quote this spec: I-5010 |
| I-6010 | 25≈ 0.984 in | 38.1 | 152.40 | 60% | 11.2 | Quote this spec: I-6010 |
| I-40125 | 30≈ 1.181 in | 25.4 | 152.40 | 40% | 19.8 | Quote this spec: I-40125 |
| I-50125 | 30≈ 1.181 in | 30.5 | 152.40 | 50% | 17.4 | Quote this spec: I-50125 |
| I-60125 | 30≈ 1.181 in | 37.1 | 152.40 | 60% | 13.5 | Quote this spec: I-60125 |
| I-4015 | 38≈ 1.496 in | 25.4 | 152.40 | 40% | 22.0 | Quote this spec: I-4015 |
| I-5015 | 38≈ 1.496 in | 30.5 | 152.40 | 50% | 19.1 | Quote this spec: I-5015 |
| I-6015 | 38≈ 1.496 in | 37.1 | 152.40 | 60% | 16.1 | Quote this spec: I-6015 |
| T-3320 | 50≈ 1.969 in | 38.1 | 152.40 | 33% | 20.3 | Quote this spec: T-3320 |
| T-5020 | 50≈ 1.969 in | 50.8 | 152.40 | 50% | 15.7 | Quote this spec: T-5020 |
Deeper, denser bearing-bar systems; final load and allowable span come from the project table.
| Type | Depth (mm) | Bearing-bar center (mm) | Cross-bar center (mm) | Open area | Weight (kg/m²) | Quotation |
|---|---|---|---|---|---|---|
| HI-4710 | 25≈ 0.984 in | 30.2 | 152.40 | 47% | 27.6 | Quote this spec: HI-4710 |
| HI-4715 | 38≈ 1.496 in | 30.2 | 152.40 | 47% | 40.0 | Quote this spec: HI-4715 |
| HI-4720 | 50≈ 1.969 in | 30.2 | 152.40 | 47% | 54.5 | Quote this spec: HI-4720 |
| HI-4725 | 64≈ 2.520 in | 30.2 | 152.40 | 47% | 61.6 | Quote this spec: HI-4725 |
| HI-4730 | 76≈ 2.992 in | 30.2 | 152.40 | 47% | 73.6 | Quote this spec: HI-4730 |
| HI-5810 | 25≈ 0.984 in | 38.1 | 152.40 | 58% | 21.0 | Quote this spec: HI-5810 |
| HI-5815 | 38≈ 1.496 in | 38.1 | 152.40 | 58% | 31.8 | Quote this spec: HI-5815 |
| HI-5820 | 50≈ 1.969 in | 38.1 | 152.40 | 58% | 42.5 | Quote this spec: HI-5820 |
| HI-5825 | 64≈ 2.520 in | 38.1 | 152.40 | 58% | 48.9 | Quote this spec: HI-5825 |
| HI-5830 | 76≈ 2.992 in | 38.1 | 152.40 | 58% | 58.6 | Quote this spec: HI-5830 |
| HL-4020 | 50≈ 1.969 in | 25.4 | 152.40 | 40% | 70.4 | Quote this spec: HL-4020 |
| HL-5020 | 50≈ 1.969 in | 30.0 | 152.40 | 50% | 52.2 | Quote this spec: HL-5020 |
| HL-6020 | 50≈ 1.969 in | 38.1 | 152.40 | 60% | 43.5 | Quote this spec: HL-6020 |
Large-open-area I-bar rows for airflow-sensitive applications such as cooling-tower walkways.
| Type | Depth (mm) | Bearing-bar center (mm) | Cross-bar center (mm) | Open area | Weight (kg/m²) | Quotation |
|---|---|---|---|---|---|---|
| SI-7310 | 25≈ 0.984 in | 30.2 | 152.40 | 73% | 13.2 | Quote this spec: SI-7310 |
| SI-7315 | 38≈ 1.496 in | 30.2 | 152.40 | 73% | 18.6 | Quote this spec: SI-7315 |
| SI-8310 | 25≈ 0.984 in | 47.6 | 152.40 | 83% | 8.5 | Quote this spec: SI-8310 |
| SI-8315 | 38≈ 1.496 in | 47.6 | 152.40 | 83% | 12.0 | Quote this spec: SI-8315 |
Cross-bar center is listed as 152.40 mm throughout the overview table. Accessibility, maximum panel size, stock status, resin, surface and load capacity require separate order confirmation.
Pultruded grating is a one-way spanning product. Mark the span direction on the panel-layout drawing and support every cut bearing-bar end.
Select resin, bar depth and spacing against the chemical environment, temperature, support spacing, concentrated load and governing deflection limit.
Match open area and slot direction to drainage, airflow, accessibility and dropped-object requirements; then confirm a profiled surface or a fine-grit or coarse-grit treatment for the selected series.
Choose M, J or series-specific T hold-downs from the bearing-bar profile and support access. The approved drawing controls quantity, spacing and complete fastener assembly.
Use these drawings to describe the support layout and the supply you need. Schematics only, not measured product or installation drawings.
For pultruded panels, mark bearing-bar direction on the layout. Cross-rods do not provide equivalent spanning capacity. Include support width, loads, cutouts and deflection requirements.
Request whole panels or finished pieces against a drawing. Add panel marks, openings and fixing requirements. Packing, kit contents and delivery arrangements are confirmed with the quotation.
Before choosing a thickness
Identify chemical names, concentrations, exposure type and operating temperature. Discuss polyester or vinyl ester against that service; resin names alone do not establish compatibility.
Read about FRP resin systems →For molded mesh, compare concave and gritted finishes. For pultruded bars, confirm the profile finish or bonded grit for the selected series. Match the surface to wet or dry use, footwear and cleaning, and specify the required slip-test method and acceptance criteria.
State clear span, support width, uniform and concentrated loads, contact area and deflection limit. Cutouts, edge support and bearing-bar direction belong on the panel layout.
Request the applicable load data →
F1 pultruded-grating clip kits are selected against the I-bar or T-bar series, panel depth, support detail and underside access. The approved drawing fixes the exact hold-down geometry and complete fastener assembly. The diagrams explain compatibility and load path only — they are not fabrication dimensions.
M, J, and T are F1-GRID pultruded-grating product definitions. Letter names are not standardized across manufacturers; the F1 SKU, compatible bearing-bar series and approved project drawing control.
F1-GRID clip M
Seats across two adjacent grating bars to hold an open-mesh panel to its supporting member.
Boundary: Panel depth, bar profile, support geometry, and access determine the final hardware arrangement.
F1-GRID clip J
Pairs a lower J hook with an approved upper clip and fastener to clamp the panel to a support flange without drilling the support frame.
Boundary: The J hook and upper clip are not universal; the approved drawing must match the grating opening, support flange, fastener, and installation access.
F1-GRID clip T
F1 series-specific hold-down definition for fastening selected F1 pultruded-grating bearing-bar series to a support frame.
Boundary: The T designation is not standardized across manufacturers and must not be treated as a generic cross-brand geometry or fit claim.
General coordination values before project-specific fastening design.
These are general starting coordination values, not a final fastening design. The approved project drawing, project engineer, grating series, support condition, and applicable manufacturer requirements control the final layout.
Combined CAD detail
One family-specific DXF containing the M/J/T typical installation details and F1 SKU references. Project-specific geometry remains governed by the approved project drawing.
Download M/J/T DXFFree DXF · no login · verify revision before issue for construction
Final clip geometry, bolt and washer selection, quantity, spacing, edge clearances, and tightening requirements must be shown on the approved project drawing. The clip guide does not change the grating span, bearing, support, or connection design checks.
Confirm the bearing-bar surface profile and whether added grit is required for the selected series. Specify the slip-test method and service conditions; a profiled finish is different from a molded concave surface.
A bonded fine-grit surface for outdoor platforms, wet areas and routine industrial access. Confirm the project slip-test method and acceptance value in the order specification.
A more aggressive surface for offshore, process-water, oily or chemical-splash duty. Cleaning method and footwear exposure should be reviewed with slip performance.
Engineering & downloads
Download the current selection data and clip drawings. For a load/deflection table or test report, identify the panel and service conditions so the documents match the proposed supply.
Inside the selection CSV
| Depth | Weight | Open area |
|---|---|---|
| 25 mm | 14.5 kg/m² | 12% |
| 25 mm | 13.8 kg/m² | 18% |
| 25 mm | 13.6 kg/m² | 25% |
Nominal selection data · not a load table
Spreadsheet-ready CSV with the same dimensions, nominal weights and open areas shown on our product pages. Selection reference, not a load table.
Download pultruded specifications (CSV) ↓Select 316SS hold-downs against the mesh or bearing bar, panel depth, support flange and underside access. Confirm the complete assembly on the drawing.
Include series or mesh, clear span, support width, uniform/point load, load footprint and deflection limit. State resin, chemical exposure, temperature and any fire or slip-test requirement.
Request matching engineering data →Project & bulk procurement
For US, Canadian, Australian, New Zealand and UK enquiries, include the destination and required units. Panel specification, quantity, cutting, fixing kits, packing and freight determine the quoted scope.
Send panel quantities or total area, your preferred configuration and sample needs. Minimum production quantity and sample arrangements are confirmed with the quotation.
State the required finished sizes, openings, edge treatment, panel identification and fixing kits. We confirm the drawing and fabrication scope before order release.
Give the delivery country, port or postcode and site handling constraints. The quotation defines packing, freight scope and the agreed Incoterm.
Share your required-on-site date. Production timing and transport time are confirmed separately after specification, quantity and destination review.
We will acknowledge your requirements within one business day and confirm the next step. A formal quotation follows specification and delivery review. Attach your layout to the enquiry, or describe the application and ask us to help shortlist a configuration.
Catalog dimensions identify standard section options, not live inventory. Confirm tooling, material, quantity and production timing in the quotation.
Pultruded FRP grating is assembled from continuous-fiber I-bars or T-bars connected by cross-rods. Most reinforcement runs along the bearing bars, producing high stiffness and strength in the designed span direction. It must be oriented and supported as a one-way spanning panel.
For F1's glass-reinforced products, yes. Both terms refer here to open, one-way GFRP panels assembled from pultruded I-bar or T-bar bearing members and cross-rods. FRP is a broader material term, so the project specification should still define the glass reinforcement, resin system, series, surface and load/deflection requirements. Molded FRP grating and closed structural FRP deck panels are separate product families.
Pultruded grating is selected for longer one-way spans and higher directional stiffness. Molded grating is cured as a bidirectional mesh panel and is generally more forgiving when a layout needs many irregular cutouts. Molded mesh sizes, nominal panel weights and M/C/J clips are now documented on the separate molded FRP grating page.
Pultruded grating is an open-drainage assembly of one-way I-bar or T-bar bearing members and cross-rods. A structural deck panel has a continuous top surface, internal webs and profile-specific edge geometry. Deck sections, joints and A/B/t values are documented on the separate FRP deck-panels page.
Start with the dedicated T-bar pedestrian rows or the I-4010 row shown in the specification table, then verify the actual clear opening and direction of travel against the accessibility code adopted by the project. A series label or a pedestrian badge does not replace the project authority's opening and surface review.
Yes, using carbide- or diamond-tipped tools with dust extraction and suitable PPE. Keep the bearing bars in the designed span direction, provide support under cut bearing-bar ends, seal cut surfaces with compatible resin and re-check the hold-down arrangement.
F1 uses compatible M saddle hold-downs, J support-hook assemblies and series-specific T hold-downs. Clip letters are not universal across manufacturers, so order by F1 SKU, bearing-bar series and approved drawing rather than by the letter alone.
Yes. The F1 pultruded-grating clip kits listed on this page are specified in 316 stainless steel. Final geometry, bolt length, complete fastener assembly, quantity, spacing and tightening requirements are issued for the selected panel and support detail.
Send the series, clear span, support width, uniform and concentrated loads, load footprint and deflection limit. F1 will return the applicable project load/deflection table and panel-layout assumptions. Do not substitute a generic load-class label for the selected bearing-bar row.
Our FRP Engineering Advisor answers spec, sizing, and chemical-compatibility questions instantly — and routes complex ones to the right human.
Pre-filled question: “I need pultruded FRP grating for [application]. Candidate I-bar/T-bar series [or unsure], clear span [mm], support width [mm], uniform and point loads [details], deflection limit [L/...], opening/accessibility requirement [details], resin/chemical exposure [details], support flange and underside access [details]. Please select the panel series, M/J/T 316SS clips and required load-table/approval documents.”
Send the dimensions, quantity, service environment, and destination. We acknowledge requirements within one business day.