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How to Read Welded Wire Mesh Sizes: Understand It in 3 Minutes

Update on 2025-12-15

Welded Wire Mesh

Have you ever looked at a welded wire mesh and wondered what all those numbers and measurements really mean? How do you know which mesh size is suitable for your project, and what do terms like wire diameter, mesh opening, and gauge actually tell you? Understanding these specifications is key to choosing the right welded wire mesh for construction, fencing, or DIY projects, and in this guide, we’ll break it down step by step so you can read and interpret mesh sizes with confidence. Learn more about what welded wire mesh is.

 

What Is Welded Wire Mesh?

Welded wire mesh is a material made by welding metal wires into a uniform grid, widely used in building reinforcement, fencing, protection, and filtration.

Understanding its specifications—such as wire diameter, mesh size, and material—is crucial because these parameters directly determine the mesh's strength, durability, and applicable scenarios. Correct specification selection ensures structural safety, long service life, and meets specific engineering or industrial needs.

 

How to Read Welded Wire Mesh Sizes?

Understanding these specifications can help you choose the most suitable product, ensuring safety, durability, and cost-effectiveness. For more guidance, see our types of welded mesh article.

1. Wire Diameter

Definition: Refers to the thickness of the metal wire that forms the mesh, usually measured in millimeters (mm) or inches (inch).

Function: Thicker wires make the mesh stronger, while thinner wires make it lighter and more breathable, also affecting the overall load-bearing capacity.

Examples:

  • 1.2 mm wire diameter → Lightweight mesh, suitable for small fences or garden support.
  • 5 mm wire diameter → Heavy-duty mesh, suitable for concrete reinforcement or industrial protection.

2. Mesh Size / Opening Size

Definition: The distance between two adjacent metal wires in the mesh, also called the "mesh opening".

Function: The size of the mesh openings determines the mesh's breathability, visibility, protective ability, and suitability for specific applications.

Common Units: Millimeters (mm) or inches (inch).

Examples:

  • 25×25 mm → Small openings, suitable for protection, filtration, or separating small objects.
  • 100×100 mm → Large openings, suitable for concrete reinforcement or garden support.

3. Material

Common Materials:

  • Carbon Steel: Economical and practical, suitable for general reinforcement and fencing.
  • Galvanized Steel Wire: Rust-resistant surface, suitable for outdoor use. See our Galvanized vs Stainless Steel Mesh comparison.
  • Stainless Steel: Highly corrosion-resistant, suitable for humid environments or the food industry.

4. Surface Treatment

Common Treatments:

  • Electro-Galvanized: Thin rust-resistant coating, low cost, suitable for general environments.
  • Hot-Dip Galvanized: Thick rust-resistant coating, long lifespan for outdoor use.
  • PVC Coated: Multiple colors, corrosion-resistant, aesthetically pleasing, and increases durability.

5. Roll vs. Panel

Roll: Long strips, convenient for large-area installation or fencing, flexible to use.

Panel: Fixed-size mesh panels, quick to install, commonly used for fences or wall protection, more stable.

 

Welding Wire Mesh Specification Parameter List

Wire Diameter (mm) Mesh Opening (mm) Roll Width (m) Roll Length (m) Panel Size (m) Material Surface Treatment
1.0 12.5×12.5 0.5 / 1.0 10 / 20 1.0×2.0 Carbon Steel Electro-Galvanized / PVC Coated
1.5 25×25 1.0 / 1.2 15 / 20 1.2×2.4 Carbon Steel / Galvanized Steel Hot-Dip Galvanized / PVC Coated
2.0 50×50 1.2 / 1.5 20 / 30 1.5×3.0 Galvanized Steel / Stainless Steel Hot-Dip Galvanized / PVC Coated
2.5 75×75 1.5 / 2.0 20 / 30 2.0×3.0 Galvanized Steel / Stainless Steel Hot-Dip Galvanized / PVC Coated
3.0 100×100 2.0 / 2.5 25 / 30 2.0×3.0 Galvanized Steel / Stainless Steel Hot-Dip Galvanized / PVC Coated
4.0 150×150 2.0 / 2.5 30 2.5×3.0 Stainless Steel / Carbon Steel Hot-Dip Galvanized / PVC Coated

Custom-Made Welding Wire Mesh in Various Sizes and Specifications

Whether you need robust and durable industrial welded wire mesh for building reinforcement or lightweight and aesthetically pleasing decorative welded wire mesh for gardening or creative projects, Yangze has the ideal solution for you. Learn more about customized wire mesh.

As a leading supplier in the welded wire mesh industry, Yangze has focused on high-quality products and reliable service for many years. We offer a wide variety of welded wire meshes with different wire diameters, mesh sizes, materials, and surface finishes to meet diverse applications and environmental needs. For global suppliers, see our top welded mesh manufacturers. Contact us today for a free quote!

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