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EnquireCoir log
Bank toes, slope breaks and sediment control
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02 · Coir Logs
Firm at the water’s edge
Coir logs, also called coir fibre rolls or coir rolls, are coir fibre packed tight inside a tube of coir netting. Staked along the toe of a bank, a shoreline or a slope break, they take the force of waves and flowing water before it reaches the soil behind them.
Sediment settles against the log and plants root into the fibre, so the edge grows stronger over time. Each log is made to the project, with diameter, length and fill density matched to the water and the bank.
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Why it works
What coir logs do on site.
Absorbs Water Energy
Takes the force of waves and flow before it reaches the bank.
Traps Sediment
Silt settles against the log, building up the toe of the bank.
Follows the Bank
Flexible enough to follow curves and changes in level.
Plant-Ready
Vegetation roots into the fibre and binds the edge.
Simple to Install
Laid in a shallow trench and secured with stakes, without heavy machinery.
Returns to the Soil
Breaks down as roots take over the job. No plastic left behind.
Specifications
Product Specification
Standard coir log sizes. Every log is built to the project; these are the common starting points.
| Property | 30 cm | 40 cm | 50 cm |
|---|---|---|---|
| Nominal diameter | 30 cm (12″) | 40 cm (16″) | 50 cm (20″) |
| Lengths | 3 to 6 m; other lengths to project | ||
| Fill | 100% coir fibre; standard or high-density fill | ||
| Netting | Coir twine netting | ||
| Planting | Plain, or pre-planted where import rules allow | ||
| Packing | Labelled by size and lot number | ||
Quality on record
Tested lot by lot, independently
We sample each production lot and send it to an independent laboratory. These are the properties measured, the method used, and what each one tells you. The report carries the lot number printed on your labels and travels with the shipment.
- 01
Central Coir Research Institute
Coir Board, Kalavoor, Alappuzha, KeralaThe Coir Board’s research institute and coir geotextile laboratory, set up to test to ASTM methods and recognised by BIS for coir bhoovastra work.
- 02
NABL-accredited laboratories
ISO/IEC 17025 accredited, IndiaIndependent textile and geosynthetics laboratories accredited by India’s National Accreditation Board for Testing and Calibration Laboratories.
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Your nominated inspector
Pre-shipment, on requestInspection and sampling by an agency you appoint before the container is sealed.
| Property tested | Method | What it tells you |
|---|---|---|
| Diameter and length | Measured per lot | Logs match the size ordered |
| Weight per metre and fill density | Measured per lot | Firmness of the fill, set to the water conditions |
| Netting mesh size | IS 15868 | Netting holds the fill and lets roots through |
| Netting yarn breaking load | Yarn tensile test | Strength of the netting that holds the log together |
| Moisture content | Oven-dry method | Fibre is shipped dry and stable for transit |
Compare
How coir logs compare
Hard engineering stops water by force. Coir logs absorb it and let plants take over the job.
| Property | Coir log | Rock riprap | Gabions |
|---|---|---|---|
| Material | Coir fibre in coir netting | Quarried rock | Wire baskets filled with rock |
| Installation | By hand, staked in place | Heavy machinery | Machinery, wire work |
| Vegetation | Plants root into the fibre | Little or none | Limited unless soil-filled |
| Edge habitat | Natural, soft shoreline | Hard edge | Hard edge |
| Lifespan | 2–5 years, then plants hold the bank | Permanent | Decades; wire can corrode |
| Best for | Low to moderate energy banks being revegetated | High-energy, permanent protection | High-energy, structural walls |
Installation
Installed in four steps
Standard practice for this product. Your project drawings and local specifications always take priority.
- 01
Cut a toe trench
Excavate a shallow trench along the bank toe so the log sits partly below the bed and water cannot run underneath.
- 02
Lay end to end
Place logs tight against each other along the line and lace the joints together with twine.
- 03
Stake both sides
Drive hardwood stakes on both sides at regular intervals and tie across the top of the log with rope or twine.
- 04
Backfill and plant
Backfill behind the log with soil, then set plant plugs or seed into the fibre and the bank above.
Natural erosion control for every edge, slope and shoreline your project has to hold.
Discover the possibilities
Coir logs work wherever water meets soil and the edge needs to hold while plants establish.
- Riverbanks
- Canals & Channels
- Ponds & Lakes
- Wetland Planting
- Gullies & Slopes
- Placeholder photoApplicationRiverbanks
- Placeholder photoApplicationCanals & Channels
- Placeholder photoApplicationPonds & Lakes
- Placeholder photoApplicationWetland Planting
- Placeholder photoApplicationGullies & Slopes
Find quick answers
Frequently Asked Questions
What is inside a coir log?
Loose coir fibre, packed tight into a tube of coir netting. The fill density is set by the job: firmer for flowing water, lighter where planting is the priority.
Where are coir logs used?
Along riverbank and channel toes, lake and pond shorelines, wetland edges and slope breaks, wherever the edge of the soil needs protection from water.
How are they installed?
Usually laid in a shallow trench along the bank and secured with stakes driven through or beside the log. No heavy machinery is needed.
What sizes can you supply?
Logs are made to each project. Send us the length of bank, the water conditions and any drawings, and we will confirm diameter, length and fill density before quoting.
How do plants establish in the log?
Plugs or seed are set into the fibre, where roots grow through the netting and into the bank. Pre-planted logs arrive with vegetation already started; availability depends on destination and plant import rules.
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