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Erosion Control Mats

Coir Mat 40 

The Coir Mat 40 Erosion Control Mats are the perfect solution for any location in need of long-term erosion control matsstabilization and vegetative growth. Constructed with high strength coir twine, these mats have been successfully used along hills, slopes and banks to stabilize and reinforce areas. All coir mats are completely biodegradable and feature natural fibers that are safe for the surrounding environment.

The Coir Mat 40 gets its name from a manufactured standard weight of 460g/m². 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.

If you have questions about any of our erosion products, give us a call at +1-772-646-0597 or request a price quote.


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


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

Typical Erosion Control Applications:

  • 2:1 Slopes
  • 8 fps Flow
  • 3 lbs/sq. ft Sheer Stress
  • Soil Bioengineering
  • Ground Stabilization
  • Erosion Control
  • Bank Control and Stabilization
  • Supports Vegetation

Coir Mat Technical Specifications
(BioD-Mat® 40 )

Test Method
ASTM D 3776
13.6 oz/SY (460g/sq.m)
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
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/sq.m)


Coir Mat Roll Sizes

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

Installation (pdf)

Accessories: Looking for staples, pegs or stakes to secure your matting? Ask our team for a quote with your product! We offer wooden stakes, sod staples, biodegradable stakes an more

Coir Erosion Control Mats for Any Location

erosion control matting erosion control matting erosion control matting erosion control matting
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

For more information, check out our complete variety of Erosion Matting.

We also offer 75 foot economy priced coir roll for stormwater management, erosion control, landscaping, roofing applications and more. It is backed with a figerblass mesh for structural strength, and can be easily cut to fit your application. See pricing here on our GEI Works Webstore.

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Questions? We can help! Call our team at +1-772-646-0597 or fill out our quote request form to discuss your requirements.