(888) 725-6999info@nedia.com
Request a quote

Coconut Fiber Logs

KoirLog™ coconut fiber logs

Support shoreline and streambank vegetation with densely packed coconut fiber logs. KoirLog helps reduce the impact of moving water, capture sediment and provide a moist growing medium for plant plugs as roots become established.

Choose from three diameters and two coir-net densities to suit the project design. The coconut fiber core is double cleaned and enclosed in high-strength coir twine netting.

Choose your log diameter

Standard lengths are 10 or 20 feet. Custom lengths are available on request; confirm the required diameter, length and density when requesting a quote.

KoirLog 12

12-inch diameter (approximately 30 cm)

Available in ND and HD coir-net construction, in standard 10- or 20-foot lengths.

KoirLog 16

16-inch diameter (approximately 40 cm)

Available in ND and HD coir-net construction, in standard 10- or 20-foot lengths.

KoirLog 20

20-inch diameter (approximately 50 cm)

Available in ND and HD coir-net construction, in standard 10- or 20-foot lengths.

Select density for the site

Coir-net series at a glance
Series Core density Outer netting Selection notes
ND — Normal Density 7 lb/ft³ (112 kg/m³) High-strength coir Easier to handle, install and plant; an open fiber structure supports root development.
HD — High Density 9 lb/ft³ High-strength coir A denser coconut fiber core for projects specifying HD construction.

The project designer should select diameter, density, anchoring and the number of log tiers based on flow velocity, wave exposure, stream energy, soil conditions and site access.

Designed to support living shorelines

Coir-net KoirLog typically lasts two to five years, depending on site conditions. As the coir breaks down, established vegetation helps retain the soil. Plant selection, installation and follow-up maintenance all influence the result.

View Nedia installation resources on CADdetails

Typical applications

  • Streambank stabilization and shoreline protection
  • Wetland mitigation and habitat restoration
  • Channel-edge protection
  • Landscaping and planted water edges

How KoirLog supports vegetation

  • Helps capture sediment around planted shorelines.
  • Retains moisture in the coconut fiber core.
  • Accommodates plant plugs and cuttings within the log.
  • Coir-net ND and HD models use biodegradable coir for both the core and outer netting.

Use the project specifications to determine the appropriate log arrangement and anchoring.

KoirLog installation guidelines

These general details should be used with the project drawings and site-specific installation requirements.

  1. Determine on site where the installation should begin and end. Usually installation begins downstream. Sediment and erosion control measures such as silt fence and sediment barriers should be in place before disturbing the work site. Prepare the site of installation by removing large rocks or other such obstructions. Re-grade slope, if necessary. Gradual slopes, flatter than 2:1 are preferred.
  2. Determine the mean water elevation. Mark the level on a stake driven into the substrate 1 to 2 feet off-shore. KoirLog™s (fig 1) should be 1/2 to 2/3 below mean water elevation for the survival of vegetation.
  3. KoirLog™s must be level, installed along a horizontal contour and parallel to the streambanks. KoirLog™s can be installed adjacent to the shoreline (fig. 2 & 3) or away from the shoreline (fig. 4 & 5) depending on the prevailing physical conditions.
  4. When KoirLog™s are installed adjacent to the shoreline, drive pencil point hardwood stakes (2” x 2” x 36”) through at least 2 loops of the outer netting of the KoirLog™ on the waterside. Stakes can be spaced 3’ on center for medium flow conditions and 2’ apart on center for rapid flow conditions. KoirTwine™ or BioTwine™ can be used to tie the logs to the stakes. Stakes should be driven down so that the top of the stake is level with the top of the KoirLog™. KoirLog™s shall be placed along the streambanks at a height sufficient to protect the shore from flows or waves. Additional KoirLog™s (fig. 3) may be stacked above the lower logs to protect the upper shore or streambanks.
  5. When KoirLog™s are installed away from the shoreline, the area behind (fig. 5) the logs can be backfilled and covered with KoirMat™ to create an aquatic shelf. Alternatively, the area (fig. 4) behind the log can be stabilized using pre-vegetated KoirBed™. For offshore applications, drive stakes 1 to 2 feet on center along both sides of the KoirLog™ in parallel rows. Lacing across the stakes is a good method to hold the KoirLog™s in place. Weave lacing back and forth across the KoirLog™ and attach the lacing to each stake using knots, notches, staples or nails.
  6. Adjacent KoirLog™s must be laced together, end to end, tightly and securely with KoirTwine™ or BioTwine™ (fig. 6)
  7. Ends of the KoirLog™ not abutting another KoirLog™ must be bent towards the shore and dug into the banks to prevent the water from flowing behind the KoirLog™s causing them to be pulled out.
  8. Plant the KoirLog™ with appropriate native plant species after the KoirLog™ has been submerged in water for a short period of time. Insert fingers or a planting iron through the outer netting to create a hole for the plant plug. Gently push the plug deep into the KoirLog™. Recommended spacing of the plant plugs is 4” to 12” along two lines in a staggered pattern.
  9. Cover the root ball by wrapping coir fiber around the base of the stem. Check to ensure that the plants have been firmly installed in the substrate. Plants and materials have to be monitored approximately 3-4 weeks after installation to ensure the success and survival of the plants and the integrity of the materials.

Installation details

KoirLog placement relative to mean water elevation

Figure 1 Site Preparation

KoirLog anchored along the shoreline

Figure 2 KoirLog™ installed along the shoreline

Stacked KoirLogs with hardwood stakes

Figure 3 Stacked KoirLog™s

Offshore KoirLog with pre-vegetated KoirBed

Figure 4 KoirLog™ installed off-shore

Stacked KoirLogs forming an aquatic shelf

Figure 5 Stacked KoirLog™s to create aquatic shelf

End-to-end KoirLog splice and lacing

Figure 6 KoirLog™ splice detail

KoirLog technical specifications

Compare the coir-net ND models below, then download the individual ND or HD specification sheet for the required diameter.

Normal Density (ND) series
Property KoirLog 12 ND KoirLog 16 ND KoirLog 20 ND
Diameter 12 in (30 cm) 16 in (40 cm) 20 in (50 cm)
Standard length 10 or 20 ft 10 or 20 ft 10 or 20 ft
Core density 7 lb/ft³ (112 kg/m³) 7 lb/ft³ (112 kg/m³) 7 lb/ft³ (112 kg/m³)
Unit weight 5.5 lb/ft (8.2 kg/m) 9.5 lb/ft (14.1 kg/m) 15 lb/ft (22.3 kg/m)
Outer netting 3-ply coir twine, 0.40 in (1 cm) diameter; 2 × 2 in rhombic mesh with hand-knotted junctions
Netting breaking strength 80 lb (356 N)
Inner core Unsorted, double-cleaned, well-graded coir fiber

Custom lengths are available. HD models have a 9 lb/ft³ core and coir netting with a listed breaking strength of 100 lb.

Download specification sheets

Diameter Normal Density High Density
KoirLog 12 12 ND specification (PDF) 12 HD specification (PDF)
KoirLog 16 16 ND specification (PDF) 16 HD specification (PDF)
KoirLog 20 20 ND specification (PDF) 20 HD specification (PDF)

©2026 Nedia Enterprises, Inc. All Rights Reserved. Unauthorized use of image and content strictly prohibited.

Privacy settings

Essential functions remain available. Optional choices can be changed at any time.

Essential — always on
Security, forms and remembering your privacy choices.
IP Geolocation by DB-IP