Compare molded fiberglass grating by mesh, depth, panel size and surface. Select a configuration for your project quotation, with matched M/C/J stainless-steel clips.
Select, compare and prepare your inquiry. Start with what you know, keep unknown details for review and attach drawings on the contact form.
Molded fiberglass grating is cured as one panel with glass reinforcement running in both directions. It is the F1-GRID choice when the layout contains frequent penetrations, loads can approach from more than one direction, or the project needs resin-rich corrosion performance with a wide choice of square and mini meshes.
Interlaced glass roving is thermally cured in a resin-filled mold. The listed construction has 30–35% glass content by total weight. For fire-retardant options, request the report for the proposed resin and panel configuration; confirm the required fire classification and test scope before ordering.
Standard industrial square mesh; HD rows are high-depth configurations.
| Depth (mm) | Bar top / bottom (mm) | Standard panel sizes (mm) | Weight (kg/m²) | Open area | Quotation |
|---|---|---|---|---|---|
| 13≈ 0.512 in | 6.0 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 6.1 | 78% | Quote this spec: 38.1 × 38.1 mm square mesh, 13 mm, bar 6.0 / 5.0 |
| 15≈ 0.591 in | 6.0 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 7.1 | 78% | Quote this spec: 38.1 × 38.1 mm square mesh, 15 mm, bar 6.0 / 5.0 |
| 20≈ 0.787 in | 6.5 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 9.6 | 68% | Quote this spec: 38.1 × 38.1 mm square mesh, 20 mm, bar 6.5 / 5.0 |
| 25≈ 0.984 in | 6.5 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 12.3 | 68% | Quote this spec: 38.1 × 38.1 mm square mesh, 25 mm, bar 6.5 / 5.0 |
| 30≈ 1.181 in | 6.5 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 14.6 | 68% | Quote this spec: 38.1 × 38.1 mm square mesh, 30 mm, bar 6.5 / 5.0 |
| 38≈ 1.496 in | 7.0 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 19.5 | 68% | Quote this spec: 38.1 × 38.1 mm square mesh, 38 mm, bar 7.0 / 5.0 |
| 40≈ 1.575 in | 7.0 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 20.6 | 68% | Quote this spec: 38.1 × 38.1 mm square mesh, 40 mm, bar 7.0 / 5.0 |
| 50 (HD)≈ 1.969 in | 9.5 / 7.5 | 1220 × 3660; 1220 × 2440; 921 × 3050 | 40.0 | 56% | Quote this spec: 38.1 × 38.1 mm square mesh, 50 (HD) mm, bar 9.5 / 7.5 |
| 60 (HD)≈ 2.362 in | 10.5 / 8.5 | 1220 × 3660; 1220 × 2440; 921 × 3050 | 48.0 | 54% | Quote this spec: 38.1 × 38.1 mm square mesh, 60 (HD) mm, bar 10.5 / 8.5 |
| 65 (HD)≈ 2.559 in | 11.0 / 9.0 | 1220 × 3660; 1220 × 2440; 921 × 3050 | 52.0 | 52% | Quote this spec: 38.1 × 38.1 mm square mesh, 65 (HD) mm, bar 11.0 / 9.0 |
| Depth (mm) | Bar top / bottom (mm) | Standard panel sizes (mm) | Weight (kg/m²) | Open area | Quotation |
|---|---|---|---|---|---|
| 25≈ 0.984 in | 7.0 / 5.0 | 1007 × 3007; 1007 × 4007; 1247 × 3687; 1527 × 4047 | 12.3 | 67% | Quote this spec: 40 × 40 mm square mesh, 25 mm, bar 7.0 / 5.0 |
| 30≈ 1.181 in | 7.0 / 5.0 | 1007 × 3007; 1007 × 4007; 1247 × 3687; 1527 × 4047 | 14.5 | 67% | Quote this spec: 40 × 40 mm square mesh, 30 mm, bar 7.0 / 5.0 |
| 40≈ 1.575 in | 7.0 / 5.0 | 1007 × 3007; 1007 × 4007; 967 × 2967; 1527 × 4047 | 19.2 | 67% | Quote this spec: 40 × 40 mm square mesh, 40 mm, bar 7.0 / 5.0 |
| Depth (mm) | Bar top / bottom (mm) | Standard panel sizes (mm) | Weight (kg/m²) | Open area | Quotation |
|---|---|---|---|---|---|
| 13≈ 0.512 in | 6.0 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 5.8 | 82% | Quote this spec: 50.8 × 50.8 mm square mesh, 13 mm, bar 6.0 / 5.0 |
| 15≈ 0.591 in | 7.0 / 6.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 6.8 | 82% | Quote this spec: 50.8 × 50.8 mm square mesh, 15 mm, bar 7.0 / 6.0 |
| 25≈ 0.984 in | 7.5 / 6.0 | 1220 × 3660; 1220 × 2440 | 11.8 | 78% | Quote this spec: 50.8 × 50.8 mm square mesh, 25 mm, bar 7.5 / 6.0 |
| 40≈ 1.575 in | 7.0 / 5.0 | 1788 × 4531; 1220 × 3660; 1220 × 2440; 921 × 3050 | 17.8 | 78% | Quote this spec: 50.8 × 50.8 mm square mesh, 40 mm, bar 7.0 / 5.0 |
| 50≈ 1.969 in | 7.5 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 21.5 | 78% | Quote this spec: 50.8 × 50.8 mm square mesh, 50 mm, bar 7.5 / 5.0 |
| 50≈ 1.969 in | 8.0 / 6.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 23.5 | 78% | Quote this spec: 50.8 × 50.8 mm square mesh, 50 mm, bar 8.0 / 6.0 |
| Depth (mm) | Bar top / bottom (mm) | Standard panel sizes (mm) | Weight (kg/m²) | Open area | Quotation |
|---|---|---|---|---|---|
| 25≈ 0.984 in | 7.0 / 5.0 | 1007 × 4007; 1173 × 4007 | 6.1 | 84% | Quote this spec: 83 × 83 mm large-open mesh, 25 mm, bar 7.0 / 5.0 |
| 40≈ 1.575 in | 7.0 / 5.0 | 1007 × 4007; 1173 × 4007 | 9.6 | 84% | Quote this spec: 83 × 83 mm large-open mesh, 40 mm, bar 7.0 / 5.0 |
Small top opening for pedestrian and heel-resistant layouts; verify the governing accessibility requirement.
| Depth (mm) | Bar top / bottom (mm) | Standard panel sizes (mm) | Weight (kg/m²) | Open area | Quotation |
|---|---|---|---|---|---|
| 25≈ 0.984 in | 6.5 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 16.8 | 30% | Quote this spec: 19.05 × 19.05 / 38.1 × 38.1 mm mini mesh, 25 mm, bar 6.5 / 5.0 |
| 30≈ 1.181 in | 6.5 / 5.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 18.5 | 30% | Quote this spec: 19.05 × 19.05 / 38.1 × 38.1 mm mini mesh, 30 mm, bar 6.5 / 5.0 |
| 38≈ 1.496 in | 6.5 / 5.0 | 1220 × 3660; 1220 × 2440; 921 × 3050 | 23.5 | 30% | Quote this spec: 19.05 × 19.05 / 38.1 × 38.1 mm mini mesh, 38 mm, bar 6.5 / 5.0 |
| Depth (mm) | Bar top / bottom (mm) | Standard panel sizes (mm) | Weight (kg/m²) | Open area | Quotation |
|---|---|---|---|---|---|
| 15≈ 0.591 in | 6.5 / 5.0 | 1220 × 3660; 1220 × 2440; 921 × 3050 | 7.5 | 55% | Quote this spec: 25.4 × 25.4 / 50.8 × 50.8 mm mini mesh, 15 mm, bar 6.5 / 5.0 |
| 50≈ 1.969 in | 8.0 / 6.0 | 1524 × 4000; 1220 × 3660; 1220 × 2440; 921 × 3050 | 28.5 | 55% | Quote this spec: 25.4 × 25.4 / 50.8 × 50.8 mm mini mesh, 50 mm, bar 8.0 / 6.0 |
Further mesh and depth options are listed below. Request the exact configuration and project load table before specifying.
20 × 20 / 40 × 40 mm mini mesh
Catalog depths: 14, 22, 30, 40, 60 mm
26 × 26 / 52 × 52 mm mini mesh
Catalog depths: 30, 38 mm
13 × 13 / 40 × 40 mm mini mesh
Catalog depths: 22, 30, 40 mm
25 × 100 mm rectangular mesh
Catalog depths: 25, 30 mm
25.4 × 101.6 mm rectangular mesh
Catalog depths: 25, 25 HD, 38 mm
38.1 × 101.6 mm rectangular mesh
Catalog depths: 38, 50 mm
25.4 × 152.4 mm rectangular mesh
Catalog depths: 38 mm
38.1 × 152.4 mm rectangular mesh
Catalog depths: 38 mm
25.4 × 50.8 mm rectangular mesh
Catalog depths: 38, 50 mm
60 × 100 mm rectangular mesh
Catalog depths: 28 mm
60 × 220 mm rectangular mesh
Catalog depths: 40 mm
The catalog hardware photograph shows the wider grating-fastener family. For this molded-grating page, F1 publishes only the applicable M hold-down, C panel connector and J support-hook functions below. The photograph is a visual reference, not a promise that every pictured geometry is a stocked F1 SKU.
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 systemsFor 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 dataM, C, and J are F1-GRID molded-grating product definitions. A C connector joins compatible molded-panel edges but does not replace support or each panel's independent hold-downs.
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 C
Connects adjacent molded-grating panel edges to control relative movement and maintain alignment at the joint.
Boundary: A C connector is not structural support and is not a panel-to-support hold-down. Each panel must remain independently supported and secured.
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.
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/C/J typical installation details and F1 SKU references. Project-specific geometry remains governed by the approved project drawing.
Free DXF, no login. Verify the 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.
Inside the selection CSV
| Depth | Weight | Open area |
|---|---|---|
| 13 mm | 6.1 kg/m² | 78% |
| 15 mm | 7.1 kg/m² | 78% |
| 20 mm | 9.6 kg/m² | 68% |
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 molded 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 →Step 1
Send panel quantities or total area, your preferred configuration and sample needs. Minimum production quantity and sample arrangements are confirmed with the quotation.
Step 2
State the required finished sizes, openings, edge treatment, panel identification and fixing kits. We confirm the drawing and fabrication scope before order release.
Step 3
Give the delivery country, port or postcode and site handling constraints. The quotation defines packing, freight scope and the agreed Incoterm.
Step 4
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.
Panel type, depth, mesh or bearing-bar geometry, resin, reinforcement, surface and manufacturing reference. Do not transfer a molded-panel result to pultruded grating.
Clear span, support width and arrangement, bearing direction, uniform or point load, footprint, deflection criterion, temperature and duration. Distinguish ultimate test load from an allowable design value.
Cut edges, penetrations, local supports, clip layout and access loads can change the application. Request the report or calculation reference and the approval scope for the finished panel.
A generic FRP beam calculator or structural-profile span table cannot establish a grating panel rating. If applicable data are unavailable, the quotation review must identify the additional testing or engineering work required.
Molded FRP grating is a one-piece panel made by placing continuous glass-fiber reinforcement in both directions of a mold and curing it in a resin matrix. That two-way architecture is the key difference from pultruded grating, whose bearing bars primarily carry load in one direction.
Use 38.1 × 38.1 mm or 40 × 40 mm square mesh for general industrial platforms; 50.8 × 50.8 mm or 83 × 83 mm when higher open area is important; and mini-mesh configurations when the top opening must be reduced for pedestrian access. The final choice must also satisfy the required load table, support spacing, drainage, slip resistance and local accessibility rules.
They are nominal product-selection values. Use them for product selection and logistics planning. The F1 quotation, approved panel-layout drawing and order-specific certified datasheet control final dimensions, tolerances, resin, surface, load capacity and delivered weight.
Yes. Its bidirectional reinforcement makes molded grating well suited to field cutouts and irregular layouts. Every cut still needs adequate bearing and cut-edge support; seal exposed cut surfaces with a compatible resin and re-check the hold-down layout on the approved installation drawing.
F1 uses M hold-down clips for compatible panel-to-support connections, C connectors between adjacent molded-panel edges, and J support-hook assemblies where the approved detail clamps around a support flange without drilling it. C clips do not replace structural support or each panel's independent hold-downs.
Yes. The F1 M/C/J clip kits shown here are specified in 316 stainless steel. Clip geometry, bolt length, complete fastener assembly, quantity and spacing are selected against the panel depth, mesh, support flange and installation access, then issued on the approved project drawing.
Choose pultruded FRP grating when the design is governed by longer one-way spans, higher stiffness in the bearing-bar direction, dedicated I-bar or T-bar series, or higher open-area configurations. Use the separate pultruded FRP grating page so its bearing-bar data and M/J/T clips are not mixed with molded mesh specifications.
Choose a row in the specification table or send a drawing. Quantities, cutting, clip kits and delivery scope are confirmed with the quotation. We reply within one business day; a formal quotation follows once the specification and delivery are reviewed.
