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Coir Mat 40


Erosion Control Mats for Stabilization and Growth

erosion control matsThe GEI Works' coir mat 40 is an excellent solution for any project site in need of long-term stabilization and vegetative growth. Constructed with high strength coir fiber twine, erosion control mats have been successfully used along hills, slopes, and banks to stabilize and reinforce areas. Our erosion control coir mat is 100% biodegradable and features natural coconut fibers that are safe for the surrounding environment after installation.

The coir mat 40 gets its name from a manufactured standard weight of 460g/m² and standard coir twine weaved in a design that leaves a 0.75" x 0.75" space for planting seeds or vegetation. Recommended use includes slopes up to 2:1 and water flows up to 8 fps.

Questions about a biodegradable erosion control blanket? GEI Works can help! Call our team at 1-772-646-0597 or fill out our quote request form to discuss your requirements.

Erosion Control Coir Mat Features

  • Machine Spun Bristle Coir Twines
  • Semi-Permanent
  • Open Weave Construction (0.75" x 0.75")
  • Recommended Slopes: >2:1
  • Recommended Flows: up to 8 fps
  • Roll Sizing: Multiple Sizes Available

Erosion Control Coir Benefits

  • Safe for Wildlife and Areas with Environmental Concerns
  • 100% Biodegradable
  • 4-6 year Approximate Lifespan
  • Open Weave Design for Revegetating
  • Handles Seeding Before or After Installation
  • Strong and Robust Coconut Coir Fibers
  • High Strength Erosion Control
  • Provides Increased Support for Vegetation

Applications for Erosion Control Mats


erosion control coir mat and logs
  • 2:1 Slopes
  • 8 fps Flow
  • 3 lbs/ ft² Sheer Stress
  • Soil Bioengineering
  • Ground Stabilization
  • Erosion Control
  • Bank Control and Stabilization
  • Supports Vegetation

Coir Mat 40 Technical Specifications

Property Test Method Details
Weight ASTM D 3776 13.6 oz/SY (460g/m²)
Dry Tensile Strength ASTM D 4595 Machine Direction 780 lbs/ft (11.4 kN/m)
Cross Direction 744 lbs/ft (10.9 kN/m)
Wet Tensile Strength ASTM D 4595 Machine Direction 672 lbs/ft (9.8 kN/m)
Cross Direction 648 lbs/ft (9.5 kN/m)
Elongation at Failure Wet ASTM D 4595 Machine Direction 30%
Cross Direction 28%
Open Area Calculated 65%
Thickness ASTM D 1777 0.35 in (9 mm)
Minimum Twine Count   15 MD x 14 CD (per foot)
Recommended Slope   > 2:1
Recommended Flow   8 fps (2.4 m/s)
Recommended Shear Stress   3 lbs/sq.ft (145N/m²)


Coir Mat Roll Sizes

Roll Size Total Area
3.28 ft x 83 ft (1 m x 25 m) 30 y²/roll (25 m²/roll)
6.56 ft x 166ft (2 m x 50 m) 120 y²/roll (100 m²/roll)
9.84 ft x 166 ft (3 m x 50 m) 180 y²/roll (150 m²/roll)
13.1 ft x 83 ft (4 m x 25 m) 120 y²/roll (120 m²/roll)

Looking for more information? Review GEI Works' Coir Mat Installation Guide.

Accessories: Staples, pegs, or stakes are essential coir mat acessories to secure your matting during installation. Contact the GEI Works team for a quote! We offer wooden stakes, sod staples, biodegradable stakes, and more.

Erosion Control Mats for Any Location


erosion control matting coir mat 60 coir mat 70 coir mat 90
Coir Mat 40 Coir Mat 60 Coir Mat 70 Coir Mat 90
2:1 slopes or lower
Flows up to 8 fps
2:1 slopes or lower
Flows up to 10 fps
1:1 slopes or lower
Flows up to 12 fps
1:1 slopes or lower
Flows up to 16 fps

Review the entire line of Erosion Control Matting Products from GEI Works.

We also offer 75 foot economy priced rolls of biodegradable erosion control blanket for stormwater management, erosion control, landscaping, roofing applications, and more. They are backed with fiberglass mesh for structural strength and can be easily cut to fit any project.

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Questions about coir mat 40 or our other erosion control mats? We can help! Call our team at 1-772-646-0597 or fill out our quote request form to discuss your requirements.