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Reno™ Mattress

Rock mattresses for hydraulic and erosion control

The Reno Mattresses are characterised as having a large area and a small thickness manufactured from double twist hexagonal wire mesh. Reno Mattresses are filled with stones on site to create a flexible, permeable and monolithic structure for use in river and canal bank protection works as well as erosion control and scour protection of slopes. Hydraulic testing of Reno Mattresses has shown that by containing rock within the cells of the mattresses the resistance to rock movement under high flows is dramatically reduced resulting in the use of less rock for channel lining works. Reno Mattresses are highly permeable making them well suited for promoting the regeneration of plants along water course and in environmentally sensitive sites.




Reno™ Mattresses are manufactured to a plan size of 6m x 2m and varying thicknesses from Galmac (Zn-5%AL MM alloy) coated wire offering about three time greater protection than zinc coated wire mattresses.  Where Reno™ Mattresses come in contact with more aggressive environments then an additional polymer protective coating is applied over the Galmac coating to maximise the level of protection. Reno™ Mattresses are divided into cells by internal diaphragms. To reinforce the structure, all mesh edges are selvedged with a wire of a greater diameter.


Dense round or quarried stone is normally used to fill Reno™ Mattresses. To ensure the durability of the structure the rock should be weather resistant, non-friable, insoluble and sufficiently hard. The most appropriate rock size falls in the range of 80mm to a maximum 0.6 x mattress thickness. Reno™ Mattresses can be installed in place or can be crane placed into position. This makes them ideal for use in hydraulic applications for use both under and above water.


  • Improved stability on soil banks
  • Protection of soil from erosion and scour
  • Flexible and versatile to match existing soil profiles
  • Different levels of coating protection for durability in a wide range of environments
  • Capable of providing a zone for regeneration of the eco-system


Supplied in the following sizes

Length (m) Width (m) Depth (m)
6 2.0 0.17
6 2.0 0.23
6 2.0 0.30