Coconut Coir Logs Specifications

Specifications for Coir Fiber Logs, Silt Checks, & Wattles

coconut coir logsGEI Works offers erosion control products made from durable, environmentally-safe coconut fiber that are easy to install and maintain. Once placed, coir fiber logs, silt checks, and wattles slowly biodegrade over time, supporting the existing environment and encouraging deep root growth.

Depending on the site scope and project goal, a silt check or wattle may be required in place of or alongside erosion control logs.

Looking for more information regarding coconut coir log specifications, or help with GEI Works products? We can help! Our product specialist team can be reached any time by online form or by phone at 1-772-646-0597.

Choose a Coir Product Specification:

Coconut Coir Log Specifications

Typical Construction:

  • Interior: Mattress Coir Fibers
  • Exterior Netting: Bristle Coir Twine
  • Standard Length: 10 feet

Diameter Density Weight Netting
12 in. 7 lbs/ft³ 5 lbs/ft 2 in. x 2 in. Openings
12 in. 9 lbs/ft³ 7 lbs/ft 2 in. x 2 in. Openings
16 in. 9 lbs/ft³ 12.4 lbs/ft 2 in. x 2 in. Openings
20 in. 9 lbs/ft³ 19.4 lbs/ft 2 in. x 2 in. Openings

For more information about coir logs specifications, review the GEI Works Coir Logs Product Flyer

Coir Fiber Log Installation

Typically, coir log installation involves a process of trenching and staking. After the project has been cleared of debris and other obstructions, a small trench can be dug for placement of the logs. Each log can then be placed inside the trench and staked. Spacing for the stakes will vary depending on your location and water flows. Typical staking placement is as follows:

Staking/Anchoring Layout

Stream Flow Diameter Anchor Height Anchor Spacing
Large Heavy 20 in. 4 ft. Min Every 2 ft.
Large Moderate 16 in. 3 ft. Min Every 2.5 ft.
Medium Moderate 12 in. 30 in. Min Every 3 ft.
Medium Low 12 in. 30 in. Min Every 3.5 ft.

View our Coir Erosion Control Log Installation Guide

If you have questions about any of GEI Works' products, contact our team at 1-772-646-0597 or request a price quote online.

Coir Erosion Control Wattles

Erosion Control Wattles are a great product offered by GEI Works for any site dealing with storm water runoff, sediment control or construction work. Typically offered in 6, 9, or 12 inch diameters, these wattles have been used around drains, site perimeters, and construction site entrances. Coir wattles are less dense than coconut fiber logs, and allow for steady filtration.

Coir Wattle Typical Specifications


6 in. (15 cm) 9 in. (23 cm) 12 in. (30 cm)
Length 15 ft. (4.6 m) 15/20 ft.
(4.6m / 6m)
10 ft. (3 m)
Weight 0.65 lbs./lf (1 kg/m) 1.5 lbs./LF
(2.24 kg/m)
3 lbs./LF
(4.5 kg/m)

Straw Wattle Typical Specifications

Product Diameter Length Density
9 in. Wattle 9 in. 10 in. 2 lbs/ft
9 in. Wattle 9 in. 25 ft. 2 lbs/ft
12 in. Wattle 12 in. 10 ft. 3 lbs/ft
12 in. Wattle 12 in. 20 ft. 3 lbs/ft
20 in. Wattle 20 in. 10 ft. 5 lbs/ft

Silt Checks

coconut coir logs

Silt Checks are a similar GEI Works product with the goal of sediment control and erosion solutions. Silt checks are small biodegradable filters designed for in streams, channels, and drainage ditches. Working to both filter silt and stabilize streams, silt checks feature a top wattle surrounded by coir matting/skirts on either side. The coir matting stabilizes the site while simultaneously filtering and controlling silt.

Silt Checks are a great way to filter runoff prior to collection in basins or drainage off of a site.

Coir Silt Check Technical Specifications

Length 15 ft.
(4.6 m)
15 ft.
(4.6 m)
Unit Weight 2.5 lbs./ft.
(3.7 kg/m)
3.0 lbs./ft.
(5.0 kg/m)
Min. Functional Height 9 in. (23 cm) 12 in. (30 cm)
Upstream Filter Apron 8 in. (20 cm) 10 in. (25 cm)
Downstream Filter Apron 17 in. (43 cm) 24 in. (60 cm)
Single Twine Strength 60 lbs. (267 N) 60 lbs. (267 N)

Strength of Outer Net MD CD

780 lbs./ft
(11.4 kN/m)
520 lbs./ft.
(7.6 kN/m)
780 lbs./ft.
(11.4 kN/m)

If you have any additional questions on coconut coir logs specifications, please contact our GEI Works product specialists at 1-772-646-0597.