Riverbed and slope protection
A gabion mattress — widely called a Reno mattress — is the flat, low-height form of a gabion: a double-twisted hexagonal wire unit laid across riverbeds, channels and slopes, then laced together and filled with graded stone. Heights run from 0.17 to 0.30 m, against the 1 m of a standard gabion box, so a mattress covers and protects an area instead of building a wall. Units are woven to order in Anping, China, supplied flat-packed and loaded with lacing wire for container shipment.
Also known as: Reno mattress · River mattress · Revet mattress · Gabion mat · Rock mattress
Typical range. Final dimensions, coating mass and tolerances are confirmed on the order drawing.
| Standard heights | 0.17 m, 0.23 m or 0.30 m; the height is set by the flow velocity and stone size |
|---|---|
| Plan sizes | 3×2, 4×2, 5×2 and 6×2 m; other sizes woven to order |
| Mesh type | Double-twisted hexagonal mesh (standard); welded mesh mattresses available on request |
| Aperture | 60×80 mm or 80×100 mm hexagonal |
| Wire diameter | 2.2–3.4 mm mesh wire; selvedge and lacing wire one gauge heavier |
| Coating options | Galvanized, Galfan (Zn-5%Al or Zn-10%Al mischmetal), or galvanized plus PVC for permanent immersion |
| Diaphragms | Internal partition panels at 1 m centres, forming 1×1 m cells that keep the fill even |
| Accessories | Lacing wire or spiral binders supplied with the mattresses |
| Stone fill | Graded hard stone about 1.5–2 times the aperture, normally sourced locally |
| Standards referenced | EN 10223-3, ASTM A974 / A975, EN 10244-2 (stated only when specified on the order) |
| Packing | Compressed and bundled flat packs for container shipment |
Galvanized low-carbon steel wire, double twisted
Heavier selvedge wire around each panel and diaphragm
Galvanized, Galfan, or galvanized plus PVC
| Mesh wire | Galvanized low-carbon steel wire, double twisted |
|---|---|
| Edge wire | Heavier selvedge wire around each panel and diaphragm |
| Coating | Galvanized, Galfan, or galvanized plus PVC |
| Lacing | Lacing wire or spiral binders for on-site assembly |
Typical configuration
0.23–0.30 m mattress on a prepared bed
Permeable lining that settles with the bed instead of cracking.
Typical configuration
0.17–0.30 m, 6×2 m units on the prepared slope
Flexible armour that tolerates settlement and lets vegetation establish.
Typical configuration
Mattress aprons at bridge piers, culverts and outfalls
Prevents undermining where the flow concentrates.
Typical configuration
PVC or Galfan coated mattresses in saline water
Resists tidal and wave action in permanent immersion.
A gabion box is a roughly cubic unit, commonly 1 m high, used to build retaining walls and mass structures. A gabion mattress is the same double-twisted mesh in a flat unit 0.17–0.30 m high, laid across a riverbed or slope. Boxes build height; mattresses cover and protect an area.
Plan sizes run 3×2, 4×2, 5×2 and 6×2 m at three standard heights — 0.17, 0.23 and 0.30 m. Internal diaphragms divide each unit into 1×1 m cells so the stone fill stays evenly distributed. Other plan sizes are woven to order.
Price follows the steel content and the coating: wire diameter, aperture, coating class (galvanized, Galfan or PVC), unit size and total tonnage. Because mesh prices track the wire market, we quote per project — send the sizes, coating and quantity and we will return a current factory price with the loading plan.
State the plan size, height, aperture, wire diameter and coating, plus the total area to be covered and the exposure (fresh water, saline or intermittently wet). A drawing with the laying pattern is welcome; we confirm the unit count, lacing wire and the packing for the container.
The name comes from the Reno river works in Italy where the flat mattress form was first used in the late 19th century, and it has since become the generic trade name for low-height gabion units, alongside river mattress and revet mattress.
The cubic form of the same mesh, for retaining walls and mass structures.
View specifications →
Flexible net systems for rock faces and cuttings.
View specifications →
General welded mesh rolls and sheets.
View specifications →Send the coverage area, unit size, height and coating. We will confirm the unit count, lacing wire and container loading plan, and quote a current factory price.
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