Specify a galvanized after welded mesh panel when zinc coverage at welded intersections matters for outdoor frames, enclosures or partitions. The grid is welded first and then hot-dip galvanized; match the opening, wire diameter, panel fit and coating requirement to the installation.
FOB reference price from $4.50 / m². Varies by spec and quantity; final quote on inquiry.
Catalog specificationsMesh Count
2–8
Wire Diameter
0.5–1.6 mm
Clear Opening
2.68–11.1 mm
Open Area
71–76.4%
Material
Hot-Dip Galvanized Steel
Product Specifications
3
Sample
Available
Select the grid and panel dimensions for the enclosure, supporting frame and exposure. Review how each installation will be fitted and maintained before finalizing the order.
A galvanized after welded mesh panel brings weld-area zinc coverage into the specification. Define the dimensions and exposure alongside the process to address the installation and maintenance needs of your project.
Select specifications to include in your inquiry.
| Nominal Mesh Count | Std. Wire Dia. (mm)Std. Wire Dia. (inch / Gauge) | Aperture Size (mm)Aperture Size (inch) | Ref. Open Area | Est. Weight (kg/m²)Est. Weight (lb/ft²) | |
|---|---|---|---|---|---|
| 2 Mesh | 1.600 mm0.06300" | 11.100 mm0.43700" | 76.4% | 2.20 kg/m²0.4500 lb/sq.ft | |
| 4 Mesh | 0.800 mm0.03150" | 5.550 mm0.21850" | 76.4% | 1.10 kg/m²0.2300 lb/sq.ft | |
| 8 Mesh | 0.500 mm0.01970" | 2.680 mm0.10550" | 71.0% | 0.65 kg/m²0.1300 lb/sq.ft |
Download the Full Wire Mesh Catalog
Reference specifications and applications in the catalog; confirm order-specific requirements with your RFQ.
Select a galvanized after welded mesh panel around the job it must do: enclose the intended space, fit the supports and withstand the specified exposure. Use the comparison and inspection steps below to turn those needs into a clear purchase specification.
Compare a galvanized after welded mesh panel with a GBW panel on the same opening, wire and sheet dimensions. The process sequence affects weld-area coating; neither label alone defines coating mass, strength or service life.
| Process | When to consider it | What to confirm before ordering |
|---|---|---|
| GAW: galvanize after welding | Weld-area zinc coverage is a purchasing priority for the specified outdoor or moisture-exposed installation. | The assembled grid is hot-dip galvanized after welding. Define coating acceptance, finished dimensions and any work that will occur after coating. |
| GBW: galvanize before welding | A dry or sheltered installation can accept the specified condition of the welded intersections. | Welding already-galvanized wire can disrupt zinc at the joints. Review joint protection and exposure requirements before accepting this route as equivalent. |
Before approving a galvanized after welded mesh panel, define what the sample must demonstrate. Retain its identification, the drawing revision and the decision record so delivery inspection uses the same basis.
Measure the grid, finished panel and edges against the drawing using the agreed support and measurement conditions. Check the sample in the intended mounting detail where fit is critical, and record any changes before approval.
Check sampled surfaces and intersections, then review any ordered coating or weld test results. Record the method, sample locations and acceptance decision together rather than treating a photograph as proof of coating mass or strength.
Link the approved sample to the final drawing, order and bundle identification. Use the five-item inspection checklist below for the shipment and agree how differences will be recorded and resolved.
If a galvanized after welded mesh panel shows a surface or fit concern, record the affected pieces and compare findings with the order. The checks below guide evidence collection; appearance alone does not determine cause, responsibility or acceptance.
| Observed concern | Evidence to record | Next verification step |
|---|---|---|
| Red rust near a joint, cut edge or abrasion | Identify the bundle and affected location; photograph adjacent intact surfaces and retain delivery and fabrication records. | Review the coating evidence, cutting or welding sequence and handling history. Agree further inspection and any repair against the ordered requirements. |
| White or grey powdery deposits | Record moisture, packaging, drainage and storage conditions; photograph the affected area and identify the bundle. | Wet storage stain can develop where moisture and restricted airflow affect newly galvanized surfaces. Review the storage history and coating condition before deciding what action is appropriate. |
| Panel dimensions or flatness do not match the frame | Record width, length, diagonals, edge projections, support conditions and measuring tools against the drawing revision. | Align opening versus pitch and base-wire versus finished diameter first, then compare panel fit with the agreed tolerances and measurement method. |
| Loose or separated welded intersections | Mark the sampled intersections and record the affected quantity, surrounding grid condition and any visible handling damage. | Compare findings with the agreed weld criteria and sampling plan. Use the specified inspection or mechanical test to assess the issue; do not infer strength from appearance. |
Put performance needs and supply dimensions on a common basis before comparing offers. These decisions address both the purchased panel and the work needed to install and maintain it.
A galvanized after welded mesh panel combines a welded steel grid with a zinc surface coating. Define the base-wire grade where forming or mechanical properties matter, and specify the coating requirement separately. A process designation or bright surface does not establish an acceptance value.
Confirm the base-wire grade and zinc-coating requirements against the agreed order and supporting material records.
Record these five items in the order and use them for incoming inspection. Select applicable standard editions, measurement methods, sampling and acceptance limits for the actual panel.
| Check item | Define in the RFQ | Acceptance basis | Evidence to agree |
|---|---|---|---|
| Manufacturing sequence | Weld first, then hot-dip galvanize; identify other fabrication steps | Required sequence and scope of coated surfaces | Process declaration and drawing revision |
| Grid and panel dimensions | Clear opening or pitch, wire-diameter basis, width and length | Units, tolerances and measurement locations | Dimensional inspection record |
| Flatness, squareness and edges | Support conditions, diagonal checks and permitted projections | Drawing-defined limits and edge details | Measurements and identified panel photographs |
| Weld intersections | Required visual checks and any mechanical test | Agreed sampling plan, test method and acceptance limits | Inspection or test record as specified in the order |
| Zinc coating and repairs | Coating requirement, test method and any permitted repairs | Applicable coating specification; A90/A90M or A780 where agreed | Coating results and repair record when required |
“the mesh is welded first and then fully immersed in molten zinc”
Industry process explanation of GAW and GBW; product-specific performance claims on that page describe Riverdale products.
“determining the weight [mass] of zinc coatings”
Coating-mass test reference; the relevant material specification or contract defines sampling and acceptance requirements.
“none of the three repair methods provides the same corrosion protection as hot-dip galvanizing”
Guidance on damaged or uncoated areas and repair methods referenced by ASTM A780.
“varies with the severity of environmental conditions”
Service-life guidance: zinc-coating thickness and the exposure environment affect performance and maintenance planning.
“a white or gray powdery deposit that can develop on newly galvanized articles”
Wet storage stain guidance covering moisture, restricted airflow and newly galvanized surfaces; assess observed conditions against the agreed inspection requirements.
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Enter the opening, wire diameter, panel dimensions, quantity, destination and use environment in the enquiry notes. Add any edge, flatness or inspection requirements. Use the contact options on this page to discuss drawings.