Galfan Gabion

Galfan gabion are double twisted hexagonal woven 95% Zn and 5% Al coated steel wire mesh compartmentalized baskets with a rectangular box shape. The compartments or cells are of equal size and dimension and are formed by internal diaphragms being placed within the basket. The compartments or cells are filled with natural stone and the diaphragms minimize stone migration within the basket providing even distribution of the stone fill throughout the basket even after structural movement.


The galfan coating provides improved corrosion resistance in comparison to a conventional galvanized coating, combining, in effect, the passive corrosion inhibition of aluminum oxidation with the active and passive effects of zinc. Galfan (95% zinc, 5% aluminium) has proven to be 2 to 3 times more corrosive resistant than the same thickness of hot dipped galvanized. Depending on the environment, it may take 50 years to 150 years for 5% rust to show on the surface of galfan when above ground.


Galfan Gabion

Galfan Gabion

Gabion 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


Zinc coating weight of galfan 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

Gabion 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 gabion size (L x W x H)

1 x 1 x 1 m without diaphragm

1.5 x 1 x 1 m without diaphragm

2 x 1 x 1 m with 1 diaphragm

3 x 1 x 1 m with 2 diaphragms

4 x 1 x 1 m with 3 diaphragms

2 x 1 x 0.5 m with 1 diaphragm

3 x 1 x 0.5 m with 2 diaphragms

4 x 1 x 0.5 m with 3 diaphragms

Length, width and height of gabion as manufactured shall not differ more than ± 5% from the ordered size prior to filling. 

Gabion Size 2 x 1 x 1 m

Gabion Size 2 x 1 x 1 m

Gabion and mattress shall be manufactured with all components mechanically connected at the production facility with the exception of the mattress lid which is produced separately from the base. All gabion and mattress shall be supplied in the collapsed form, either folded and bundled or rolled, for shipping.

Packing of Gabion

Packing of Gabion

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