Introduction
Weldmesh Mattresses
Weldmesh Mattresses are prefabricated from welded steel wire mesh. They are large in plan compared to their height and are pre -clipped in a penfold fashion with stainless steel clips every third mesh space in the factory with the lids left loose for transportation purposes. The units flat pack down for storage and ease of handling.
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General Information
Weldmesh mattresses are large in plan compared to their height and supplied in multiples of the mesh aperture typically up to 300mm high. They are subdivided with internal diaphragms placed at 1m intervals to give maximum internal compartment sizes of 2m x 1m.
Where water flow is high, additional internal diaphragms maybe placed to reduce the compartment sizes and prevent movement or migration of stone. The correct grade of stone is essential as well as packing of the compartments to reduce the potential for movement.
Mattresses are manufactured from lighter grades of wire for their flexibility. Applications include scour protection beneath gabion walls where erosion in watercourses is prevalent and as channel lining to storm water drains and culverts.
 Matresses.pdf
Scour protection.pdf
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Nominal sizes of standard Weldmesh Mattresses
Length (m) |
Width (m) |
Height (m) |
2.0 |
1.0 or 2.0 |
0.15, 0.225 or 0.3 |
3.0 |
1.0 or 2.0 |
0.15, 0.225 or 0.3 |
4.0 |
1.0 or 2.0 |
0.15, 0.225 or 0.3 |
5.0 |
1.0 or 2.0 |
0.15, 0.225 or 0.3 |
6.0 |
1.0 or 2.0 |
0.15, 0.225 or 0.3 |
This table refers to the industry standard unit sizes; non-standard unit sizes are available in dimensions of multiples of the mesh opening.
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Material Specification
Zincalu Super Coated
Mesh aperture |
Wire diameter |
Corrosion Protection |
Durability |
76.2 mm x 76.2 mm |
3 mm |
Zincalu Super 350 g/m2 ave. minimum |
> 70 Years in a mild environment |
References |
BS 1052 |
BS EN 10244 - 2 |
BBA Certificate no.s 00/3683 |
Plastic Coated
Mesh aperture |
Wire diameter |
Corrosion Protection |
PVC |
Durability |
76.2 mm x 76.2 mm |
2.7 mm ID
3.20 mm OD |
Galvanised 240 g/m2 min. with a bonded PVC coating of nominal 0.25 mm thickness |
Colour Grey: RAL 7037 |
> 120 Years in a mild environment |
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Documentation
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