For outdoor fencing in Noida or Delhi NCR, the quick answer is: choose GI (galvanised) welded mesh for any fence exposed to weather, and choose MS (mild steel) welded mesh only for structural or embedded use where rust is not a concern. The difference is rust - and getting it wrong means a fence that rusts through in a year. This guide from Garg Industrial Mesh, Sector 9 Noida, explains the trade-off.
What is the difference between GI and MS welded mesh?
Both start as mild steel wire welded into a grid. GI adds a hot-dip zinc coating that resists rust outdoors. MS is bare mild steel - cheaper and very strong, but it rusts quickly if exposed to moisture unless painted or powder-coated. The zinc coat is what makes GI the outdoor choice.
GI vs MS welded mesh comparison
| Property | GI Welded Mesh | MS Welded Mesh |
|---|---|---|
| Coating | Hot-dip galvanised zinc | None (bare mild steel) |
| Rust resistance | Good outdoors | Low (rusts without coating) |
| Strength | High | Very high |
| Best use | Outdoor fencing, poultry, gabions | RCC slabs, precast, embedded use |
| Indicative price | Rs45-60/sqft | Rs40-50/sqft |
| Lifespan outdoors | 8-15 years | 1-2 years (without coating) |
When to choose GI welded mesh for fencing
GI is the right choice for any fence that sits in the weather - boundary fencing, poultry farms, garden enclosures, safety partitions and gabions. The zinc coat keeps it rust-free for years with no maintenance, which is why it dominates outdoor fencing in Delhi NCR.
When is MS welded mesh the right choice?
MS is the right choice when the mesh is embedded or protected from moisture - RCC slabs, precast elements, road reinforcement and retaining walls. Inside concrete, MS does not rust, and its raw strength is ideal for structural reinforcement. For an exposed fence, MS only works if you paint or powder-coat it - and even then it needs upkeep.
Cost comparison: is GI worth the extra?
Bare MS is slightly cheaper than GI, but the saving is false economy for an outdoor fence because MS will rust and need replacement or repainting. GI costs a little more up front but lasts years longer with no maintenance, so the lifetime cost is far lower outdoors.
How to choose for your fencing project
Outdoor and weather-exposed? GI. Embedded in concrete or structural? MS. Painted and sheltered? MS can work. At Garg Industrial Mesh, Sector 9 Noida, we stock both GI and MS welded mesh in multiple openings and gauges, cut to size. Tell us your application and we will specify the right one - call or WhatsApp 9910238277.