TERRACHECK® is a temporary silt fence barrier that is 100% biodegradable and eco friendly. It's designed to impound sediment-laden runoff, reduce sheet flow* and capture sediments. Terracheck is made of recycled, needle punched & stitched biodegradable fibres and installed with bamboo poles.

*’Sheet flow’ means water runoff which flows over the ground surface as a thin even layer, not concentrated in a channel.



  • Detain runoff flows so that deposition of transported sediment can occur through settlement
  • Filter sediment to help mitigate the risk of fine sediment reaching waterways
  • Replaces the standard synthetic silt fence in low risk applications where the required performance will be met using TerraCheck.



  • Very durable
  • Low environmental impact
  • Biodegradeable
  • Recycled
  • No removal required
  • Low visual impact, looks natural
  • Easy to install
  • Low overall cost.
  • No disposal costs if the fence is left to degrade
  • No injuries resulting from installing Waratahs



For sheet flows only, not concentrated flows.

In areas of high rainfall or as a secondary protection measure, multiple fences could be considered to ensure the catchment capacity is maintained.

Not to be used to dam a channel to reduce velocities or placed where it will intercept concentrated flows.

Contact your local council or regulatory body prior to installing to ensure approval for its intended use.



100% Biodegradable Material: Wool fibre, Jute reinforcing, Cotton stitching and Bamboo poles.



100% Biodegradeable Requires removal to landfill or deconstruction for reuse
Low carbon footprint Higher carbon footprint
Wool releases nutrients into the soil as it biodegrades May release microplastics
NZ made using waste wool, jute, cotton and bamboo Uses imported synthetic materials
Low cost, NO removal required: $11 to $15 /m total Higher installation and removal costs: $13 to $30 /m total
Simple installation tools Heavier installation equipment