Speak with our technical team today for specifications, pricing, and delivery options across England, Scotland, and Wales.
Rock Armour &
Rip Rap Supply
Rock Armour & Rip Rap — Engineered Stone for Coastal and Flood Defence Applications
RedRox supplies Rock Armour (Rip Rap) in accordance with the Rock Manual, BS EN 13383, and Series 600 Specification for Highway Works, supporting the construction of coastal revetments, river training works, breakwaters, and flood defence structures across England, Scotland, and Wales.
Material is sourced from approved quarries producing hard, durable igneous and metamorphic rock with high density, low water absorption, and resistance to abrasion and freeze–thaw action. Graded stone typically ranges from 60 kg to 10 tonne nominal mass, supplied as Class I–III or bespoke gradings to meet project design criteria.
Deliveries are available nationwide by road or marine transport, ensuring efficient supply to coastal, riverine, and infrastructure sites throughout the UK.
Rock Armour Applications:
- Coastal protection and sea defences
- Riverbank and flood prevention
- Bridge abutments and outfall protection
- Erosion control and slope stabilisation
Specification Compliance:
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The “products” are defined by physical and mechanical properties:
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Density (>2.6 t/m³ typical)
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Porosity
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Abrasion resistance (LA value)
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Freeze-thaw resistance
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Shape (flakiness index)
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Mass/size grading (D₅₀, Dₘₐₓ, etc.)
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Durability and petrographic quality
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- A few products we offer include
Rock Armour Applications:
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Rock Manual Product Range
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Armourstone Class I (10–60 kg)
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Armourstone Class II (60–300 kg)
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Armourstone Class III (300–1000 kg)
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Armourstone Class IV (1–3 t)
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Armourstone Class V (3–6 t / 6–10 t)
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Core Material (40–200 mm)
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Underlayer Stone (90–250 mm)
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Filter Stone (20–63 mm / 40–75 mm)
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Bedding Stone (10–40 mm)
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Toe Material (1–3 t / 3–6 t)
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Revetment Stone (150–300 mm)
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Gabion Stone (75–200 mm / 100–250 mm)
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Rockfill (75–300 mm)
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Quarry Run (0–500 mm)
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Graded Corefill (well-graded 0–250 mm / 0–300 mm)
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Rip Rap (60–300 mm)
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Secondary Armour (300–1000 mm)
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Gravel Filter (4–20 mm / 6–40 mm)
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Armourstone Toe Rock
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Selected Core Rock
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Rockfill for Breakwaters and Sea Defences
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Recycled or Alternative Armourstone (concrete, slag, or engineered block alternatives)
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Material Options:
We supply a wide range of rock types suitable for armour stone applications including:
Limestone
Granite
Basalt
Gritstone
Sandstone
Whinstone
Diorite
Other stones available on request
- We offer flexible delivery nationwide via:
- Flatbed Articulated Lorries
- Artics, 8, 6, and 4-Wheeler Tippers
- Grab Wagons
- Marine Delivery (by barge or boat)
We can also provide certified scales for on-site rock weight and volume testing to meet project requirements.
