Gabion Sea Defence
BBA-certified PVC Gabions suited to sea defence applications. Used in coastal protection schemes, sea walls, revetments and erosion control.
Key info:
- 120-year lifespan in saltwater environments
- Corrosion resistant – BS EN 10244-2: 2009 (Class A)
- BBA Approved
Related: Gabion home page and Gabion Stone
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Helpful Gabion Sea Defence Information
Applications
| PVC Coated | ||
| 3.2mm Wire Diameter | 4.3mm Wire Diameter | |
| Erosion control | ||
| Erosion control: river beds | ||
| Erosion control: reservoirs beds | ||
| Erosion control: canals beds | ||
| Coastal/saltwater protection | ||
| General | ||
| Delivered as | Flat packed in small to large truck depending on order quantity | |
| Delivered with | Delivered with FREE tying wire | |
| Also available | Helicals for quicker assembly of the 4 vertical corners (ordered separately) | |
| Also available | Corner ties to prevent bulging (ordered separately) | |
| Can wires be cut | Yes – with a good wire cutter | |
| Made in UK | Yes | |
| Conforms to British manufacturing standard | BS EN 10223-8:2013 | |
| Certificate of conformity | Yes – download | |
| Construction | ||
| Mesh Hole Size | 75mm x 75mm | 75mm x 75mm |
| Mesh Material | Galfan coated steel with PVC coating | Galfan coated steel with PVC coating |
| Mesh Construction | Welded | Welded |
| Mesh panels joined together by | Stainless steel C Clips | |
| Strength and environment | ||
| Tensile strength range | 540-770 N/mm² | 540-770 N/mm² |
| Corrosion resistance | Yes, conforms to British standard BS EN 10244-2:2009 | |
| Abrasion resistance | Conforms to EN 60229:2008 | |
| Life Expectancy | 120 years | 120 years |
| Suited to Environments | C2 – C5 | C2 – C5 |
| Disclaimer | Using iron-rich stone in coastal environments may lead to a slight discoloration of the coating. | |
| Rocks / Filling / Installation | ||
| Speed of installation | 2-5 mins each | |
| Experience required to install | None – Download installation PDF | |
| Speed up installation | Helicals (ordered separately) – use on 4 vertical corners instead of tying wire. Can also be used to attach the cages together | |
| Save money | Stone separating panel (ordered separately) – allows you to backfill the cages with cheaper stone or rubble | |
| Prevent bulging | Corner ties (ordered separately) – will brace the corners of the baskets together reducing bulging caused by rocks putting pressure on the metal panels | |
| Rock size required | Minimum 80mm x 80mm | |
| Requires angular, interlocking rocks | ||
| Can be filled with crushed concrete | ||
| Can fill with rounded rocks | ||
Calculate Stone Quantity
- Use gabion stone calculator to quickly calculate the stone tonnage you need
- Use partitions to reduce the amount of rocks required and save money.
| Gabion Dimensions (cm) | Gabion Volume (m3) | Bulk Bags of Stone Required | Weight of Stone Required (kg) | ||
| 45 | 45 | 45 | 0.09 | 1 | 164 |
| 97.5 | 45 | 45 | 0.20 | 1 | 197 |
| 97.5 | 97.5 | 45 | 0.42 | 1 | 770 |
| 97.5 | 97.5 | 97.5 | 0.92 | 2 | 1,668 |
| 150 | 45 | 45 | 0.30 | 1 | 546 |
| 150 | 97.5 | 45 | 0.66 | 2 | 1,185 |
| 150 | 97.5 | 97.5 | 1.43 | 3 | 2,567 |
| 202.5 | 45 | 45 | 0.41 | 1 | 738 |
| 202.5 | 97.5 | 45 | 0.89 | 2 | 1,599 |
| 202.5 | 97.5 | 97.5 | 1.93 | 4 | 3,465 |
