Information on Coir Logs | Placement and Use

Information on Coir Logs

Coir Log FAQs

Coir Logs are a versatile, multi-purpose product used in restoration projects, river bank protection and hillside stabilization. Available in multiple diameters and interior densities, these logs are a great choice for any location dealing with erosion or needing to stabilize slopes. Please view commonly asked questions regarding these logs below:

Questions:
1. How do you connect coir logs?
2. How do you avoid gaps and spaces?
3. How do you install the logs?
4. What sizes are available?
5. How long do they hold up?
6. What are they made of?
7. Do I need to remove the log after use?
8. Can I use vegetation with the log?
9. What is the difference between a coir log and a coir wattle?
10. Where can coir logs be used?
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1. How do you connect coir logs?

As a general rule, coir logs are typically available in a standard length of ten feet (10'). Since most locations require significantly more than ten feet, the first questions usually asked are, "Are they available in longer lengths?" and "How do I join these together?"

Coir Log Lengths: Standard length for the coir log is ten feet (10'). This is because ten feet makes the log easy to manage, maneuver and install in any given location.

Joining Coir Logs: Any time you are joining logs together, you will want to make sure that the end of one log is placed tightly against the end of another log. Both logs can then be joined together using coir twine or other suitable ties.

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2. How do you avoid gaps and spaces?

In order to avoid gaps and spaces around the logs, each log is connected via coir twine and is then staked into place with wedges. This helps to stabilize the log into a specific location and prevent movement against water flows. Typical staking/anchoring can be seen below:

Staking/Anchoring Layout
Stream Flow Dia. of Log Anchor Height Anchor Spacing
Large Heavy 20" 4' min. Every 2'
Large Moderate 16" 3' min. Every 2.5'
Medium Moderate 12" 30" min. Every 3'
Medium Low 12" 30" min. Every 3.5'

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3. How do you install the logs?

Logs are typically installed through the following method:

  1. Dig a small trench where logs need to be placed
  2. Place logs in the trench
  3. Backfill the area with soil so that they are tightly packed against the slope
  4. Securing adjacent logs with coir twine
  5. Stake the logs into position

Complete Coir Log Installation

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4. What sizes are available?

Coir Logs are typically 10' in length and will feature diameters of either 12, 16, or 20 inches.

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5. How long do they hold up?

The lifespan for a coir log will vary significantly depending on where the log is placed and used. In general, logs are rated with a lifespan that ranges anywhere from two to five (2-5) years. However, site conditions, such as wind, rain, flows, and storms can influence how long as log will last before it biodegrades.

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6. What are they made of?

Coir logs feature an exterior made from coir twine netting and an interior that is filled with mattress coir fibers.

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Questions? We can help! Call our team at +1-772-646-0597 or submit a form.

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7. Do I need to remove the log after use?

No. Coir logs are made from 100% biodegradable materials. Over time, their exteriors will break down and biodegrade. Remaining materials will mix into the surrounding environment to further enrich the area. For this reason, they will not typically require any maintenance or removal.

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8. Can I use vegetation with the log?

Yes, coir logs can be implemented with vegetation. Since our logs do not typically come pre-vegetated, they will require vegetation to be purchased separately. Vegetation can be planted on or around the logs until they are allowed to grow. Over time they will grow into the surrounding logs.

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9. What is the difference between a coir log and a coir wattle?

Coir logs are typically larger in diameter and are significantly more dense. When a person stands on these, the log will remain in place and will barely indent under the weight.

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10. Where can coir logs be used?

Coir logs are a great choice for almost any location dealing with erosion, runoff or high flows. The typical design for the logs uses a combination of natural fibers, making the product perfect for areas with potential wildlife or other environmental concerns. Some of the most common locations include:

  • Riverbanks
  • Shorelines
  • Hills
  • Wetlands
  • Stream Banks
  • Construction Sites

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Questions? We can help! Call our team at +1-772-646-0597 or submit a form.

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If you have any additional questions or for more information on coir logs, please contact our Granite Environmental sales team at +1-772-646-0597.