Rockfall Netting

Rockfall netting is typically used in both simple drapery systems and in a variety of specialist geotechnical and engineering applications including slope stabilization, rockfall protection and surface protection applications.

It is a highly efficient mesh combining ease and flexibility of use with unsurpassed cost-effectiveness. Used around the world for over 60 years, rockfall netting mesh is proven to offer robust, long lasting and cost-effective rockfall protection. On moderately steep slopes, or those where some vegetation may grow, the mesh should be kept as close to the slope as possible. On very steep and/or near vertical slopes, the net must be anchored at the top of the cliff, and left unanchored at the bottom, thereby allowing rocks and debris to fall into a collection ditch at the toe of the slope. A key factor is to have a safe and continuous anchorage at the top.

Rockfall netting consists of double-twisted wire mesh made from wire which is zinc coated before being double-twisted into mesh. Fasteners, lacing wire, and stiffeners are produced from zinc-coated wire.

Rockfall Netting
Rockfall Netting

Rockfall netting shall be manufactured with an 8 x 10 mesh type having a nominal mesh opening of 83 x 114 mm (3.25 x 4.5 in.). Tolerances on the mesh opening shall not exceed ± 10% on the nominal dimension D values. 

Typical mesh wire, selvedge wire and lacing wire group

2.70 mm, 3.40 mm, 2.20 mm

3.00 mm, 3.80 mm, 2.20 mm

3.05 mm, 3.90 mm, 2.20 mm

Minimum zinc coating weight of gabion wire

2.20 mm ≥ 230 g/㎡

2.70 mm ≥ 245 g/㎡

3.00 mm ≥ 255 g/㎡

3.05 mm ≥ 255 g/㎡

3.40 mm ≥ 265 g/㎡

3.80 mm ≥ 275 g/㎡

3.90 mm ≥ 275 g/㎡

Mesh Opening 80 x 100 mm
Mesh Opening 80 x 100 mm

Rockfall netting wire diameter tolerance

2.20 mm ± 0.06 mm

2.70 mm ± 0.06 mm

3.00 mm ± 0.07 mm

3.05 mm ± 0.07 mm

3.40 mm ± 0.07 mm

3.80 mm ± 0.07 mm

3.90 mm ± 0.07 mm

Typical rockfall netting size (W x L)

2 x 30 m

2 x 50 m

Rockfall Netting Size 2 x 50 m
Rockfall Netting Size 2 x 50 m

Rockfall netting shall be manufactured with all components mechanically connected at the production facility and supplied in the rolled form for shipping.

Packing of Rockfall Netting
Packing of Rockfall Netting

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