A hot dipped galvanized welded wire mesh panel (HDG mesh panel) is a flat, rigid sheet of low carbon steel wire welded at every intersection, then submerged in a bath of molten zinc at 450°C after welding. This galvanizing-after-welding sequence is the key distinction from pre-galvanized mesh: because the zinc coating is applied after the welds are formed, every joint — the weakest point in any welded mesh — is fully protected. The result is a panel with a continuous zinc layer across the entire surface, including cut edges and weld points, with coating weights from 40 g/m² for standard indoor use up to 300 g/m² for permanent outdoor or coastal exposure.
Yangze operates dedicated hot-dip galvanizing lines alongside our welding production in Anping, Hebei. Every panel goes through resistance welding first, then full immersion galvanizing — not the reverse. This sequence ensures weld joints are sealed under zinc, not exposed. We supply fencing contractors, construction distributors, and industrial buyers in over 30 countries with consistent batch quality, full mill documentation, and pre-shipment inspection support.
All panels manufactured by hot-dip galvanizing after welding. Select an opening size below as a starting point — wire diameter, panel dimensions, and zinc coating weight are all configurable at order.
The tightest opening in our standard HDG panel range. Chosen when containment of small animals or fine debris is the priority — the 6 mm opening prevents entry by chicks, mice, and similar. Because this opening requires finer wire, zinc coating adhesion is verified per batch. Not suited to heavy lateral load; step up to 25×25 mm with heavier wire for structural applications.
One of our most consistently ordered panel sizes for poultry operations. The 10 mm opening blocks predator access while maintaining ventilation — the hot-dip zinc coating (minimum 80 g/m²) handles the damp, ammonia-heavy environment of enclosed poultry sheds better than electro-galvanized alternatives. If you need containment for smaller birds or chicks, 6×6 mm is the appropriate choice.
Standard 1-inch opening — the most widely specified panel size for perimeter fencing, construction site barriers, and concrete formwork backing. Available in three wire diameters to match load requirements: 1.6 mm for light-duty partitions, 2.5 mm for general construction, and 4.0 mm for impact-resistant perimeter security. All three carry the same HDG process; heavier wire gauges are paired with higher zinc coating weights.
Preferred for cattle yards, temporary site hoarding, and tree guards where material cost per square metre matters. The 50 mm opening reduces steel weight without compromising the structural frame when posts are spaced correctly. Available in 2.5 mm wire for lighter livestock applications and 4.0–5.0 mm for permanent cattle or industrial perimeter use. Not suitable where small animal containment is needed — use 10×10 mm or 25×25 mm for that.
Large-opening heavy-wire panel for concrete reinforcement rolls, industrial perimeter security, and gabion facing where maximum structural strength per panel is required. Wire diameters of 5.0–8.0 mm are standard for this opening size; zinc coating of 200–300 g/m² is recommended for permanent outdoor installations. This is the panel specified when load-bearing capacity and long-term corrosion resistance must both be met without compromise.
For applications where different horizontal and vertical spacing is needed — common in shelving systems, EIFS (external wall insulation) backing, floor heating reinforcement, and directional structural panels. Standard rectangular configurations include 50×25 mm, 75×25 mm, and 100×50 mm; any opening ratio can be produced to your drawing. The asymmetric opening provides directional stiffness — stronger along the short axis — which is useful for panels installed under load in one primary direction.
The six configurations above represent our most commonly ordered HDG panel types. If your project requires a different opening size, wire gauge, panel dimension, or zinc coating weight, send us your specification sheet or project drawing and we will confirm feasibility and pricing within 24 hours.
All panels are galvanized after welding (GBW). Wire diameter values are in mm; opening sizes in inches and mm. Standard panel size: 2400×1200 mm and 3000×1500 mm unless specified.
How to select zinc coating weight: For indoor or sheltered use, 40–80 g/m² is adequate. For permanent outdoor fencing in temperate climates, 120–200 g/m² is standard. For coastal environments, chemical exposure, or permanent infrastructure, specify 200–300 g/m². Higher zinc weight increases panel weight and unit cost — we will advise the minimum coating needed for your environment if you describe the application.
| Opening (inch) | Opening (mm) | Wire Diameter (mm) | Zinc Coating (g/m²) | Typical Application |
|---|---|---|---|---|
| 1/4" × 1/4" | 6.35 × 6.35 | 0.6 – 1.0 | 60 – 120 | Small animal cages, hatchery guards |
| 3/8" × 3/8" | 10 × 10 | 0.9 – 1.2 | 80 – 150 | Poultry housing, rabbit enclosures |
| 1" × 1" | 25 × 25 | 1.6, 2.5, 4.0 | 80 – 200 | Perimeter fencing, construction barriers |
| 1-1/2" × 1-1/2" | 38 × 38 | 2.5, 3.0, 4.0 | 100 – 200 | Livestock enclosures, site hoarding |
| 2" × 2" | 50 × 50 | 2.5, 4.0, 5.0, 6.0 | 100 – 250 | Cattle fencing, tree guards, gabion backing |
| 2" × 4" | 50 × 100 | 3.0, 4.0, 5.0 | 120 – 250 | Horse fencing, long-span enclosures |
| 3" × 3" | 75 × 75 | 4.0, 5.0, 6.0 | 150 – 300 | Industrial security, gabion facing |
| 4" × 4" | 100 × 100 | 5.0, 6.0, 8.0 | 200 – 300 | Concrete reinforcement, heavy industrial |
| 6" × 6" | 150 × 150 | 6.0, 8.0 | 200 – 300 | Road reinforcement, retaining structures |
Specifications above are representative combinations. Opening size, wire diameter, panel dimension, zinc coating weight, and edge finish can all be specified independently. Send your project requirements for a factory-direct quotation within 24 hours.
GBW (galvanized after welding) means the completed mesh panel is immersed in molten zinc after all welds are formed. Every weld joint — the weakest corrosion point — is sealed under the zinc layer. GAW (galvanized before welding) uses pre-coated wire, but the welding process burns through the zinc at each junction, leaving exposed steel at every intersection. For outdoor, agricultural, or coastal applications, GBW panels last significantly longer. Yangze produces HDG panels using the GBW process as standard.
Service life depends primarily on zinc coating weight and exposure conditions. In a temperate inland environment, a panel with 120 g/m² zinc coating typically lasts 15–25 years before requiring maintenance. In coastal or industrial atmospheres with higher salt or chemical exposure, 200–300 g/m² coating extends life to a comparable period. The hot-dip process produces a zinc-iron alloy layer bonded to the steel, which is significantly more durable than electroplated zinc coatings of equivalent weight.
As a general guide: 40–80 g/m² for indoor or permanently sheltered use; 100–150 g/m² for standard outdoor fencing in temperate climates; 150–200 g/m² for exposed agricultural or construction use; 200–300 g/m² for coastal environments, chemical plants, or permanent infrastructure. If you describe your installation location and expected service life, Yangze's technical team will recommend the minimum coating weight needed — specifying higher than necessary increases cost without proportional benefit.
For first-time orders, we accept trial quantities from one FCL (approximately 18–22 tonnes depending on panel weight). Sample panels in your specified configuration can be produced and shipped by courier before you commit to a full order — sample cost is credited against the first production order. For established buyers running regular orders, we support blanket order arrangements with scheduled monthly shipments.
Yes. Standard panel dimensions are 2400×1200 mm and 3000×1500 mm, but we produce to any dimension specified on your drawing. Mesh openings, wire diameters, and edge finishing (cut flush, folded, or framed) are all configurable. We regularly produce panels to EN, ASTM, and project-specific standards for construction contractors across Europe, Australia, and North America. Send us your drawing or specification sheet and we will confirm feasibility and lead time within 24 hours.
Every shipment is accompanied by a mill certificate recording wire diameter, mesh opening, panel dimensions, zinc coating weight, and tensile strength; a Certificate of Analysis (COA); full packing list; and pre-shipment photographs of the loaded container. Third-party inspection by SGS, Bureau Veritas (BV), or Intertek can be arranged at the factory prior to container sealing, at the buyer's cost. We do not ship without confirmed inspection sign-off when third-party inspection has been specified.