What Does 3.0mm 80x100mm Hot Dipped Galvanized Rockfall Netting Mean?

3.0mm 80x100mm hot dipped galvanized rockfall netting usually refers to double twisted hexagonal rockfall netting supplied in rolls. The name includes three main specification details: mesh wire diameter, hexagonal mesh opening and surface treatment.

It should be understood as roll material, not steel rope netting, a complete active protection system or a passive rockfall barrier. For this product name, the main question is simple: what does each part of the specification mean?

1. 3.0mm Refers to the Mesh Wire Diameter

3.0mm usually refers to the mesh wire, which is the main steel wire used to form the hexagonal mesh body.

This number is not the roll thickness, and it is not a protection grade. For products both called rockfall netting, 2.7mm wire and 3.0mm wire should not be treated as the same specification. Different wire diameters mean different material use, roll weight and quotation basis.

A clearer description is:

3.0mm mesh wire rockfall netting

not only:

3.0mm rockfall netting

2. 80x100mm Refers to the Hexagonal Mesh Opening

80x100mm refers to the double twisted hexagonal mesh opening.

Mesh opening should be read together with wire diameter. If two products are both described as 80x100mm, but one uses 2.7mm wire and the other uses 3.0mm wire, they are not the same supply specification. In the same way, two products with 3.0mm wire may still be different if the mesh opening or roll size is different.

This part of the specification can be written as:

3.0mm wire + 80x100mm mesh opening

For general product data, see the rockfall netting specification table.

3. Hot Dipped Galvanized Is the Surface Treatment

Hot dipped galvanized is the surface treatment in this specification.

It means the steel wire has a galvanized surface for outdoor rockfall netting roll supply. In this article, hot dipped galvanized should be read only as the surface-treatment part of the product name.

It should not be written as a fixed service-life guarantee. The later condition of rockfall netting can still be affected by exposure environment, installation condition and maintenance.

4. 2x25m Describes the Roll Supply Size

The material set for this specification corresponds to 2x25m rolls.

Roll width and roll length are not a construction method, but they are part of the supply specification. They affect roll quantity, packing, handling and order checking.

A complete expression of this specification is:

3.0mm wire, 80x100mm mesh opening, hot dipped galvanized, 2x25m rolls

5. 3.9mm Selvedge Wire Is an Edge Detail

The available material record for this 3.0mm 80x100mm hot dipped galvanized rockfall netting also includes 3.9mm selvedge wire measurement.

Selvedge wire is the edge wire of the roll. It is not a separate main product, but it belongs to the finished roll structure. When this detail is required, it should be read together with the mesh wire, mesh opening and roll size.

Read as one specification, 3.0mm 80x100mm hot dipped galvanized rockfall netting means a double twisted hexagonal rockfall netting roll with 3.0mm mesh wire, 80x100mm mesh opening and hot dipped galvanized surface treatment. In this material set, the roll size is 2x25m, and the selvedge wire record is 3.9mm.