Exact product · Polypropylene biaxial geogrid
TerraGrid Core 20
20 kN/m biaxial geogrid supplied by CORE for compatible granular reinforcement.
- Polymer
- Polypropylene
- Grid type
- Biaxial
- Tensile strength MD / CMD
- 20 / 20 kN/m
Verified scope
What this product is.
TerraGrid Core 20 is a polypropylene biaxial grid with declared equal machine- and cross-direction tensile strength. Compatible angular aggregate interlocks with the apertures to restrict lateral movement within a project-designed granular layer.
Ordering information
Codes and formats.
200 m²
Declared data
Verified specifications.
Values shown here are limited to the current source record. A stated data gap is safer than merging legacy or conflicting product information.
PolymerPolypropylene
Grid typeBiaxial
Tensile strength MD / CMD20 / 20 kN/m
Tensile strength at 2% strain MD / CMD7 / 7 kN/m
Tensile strength at 5% strain MD / CMD14 / 14 kN/m
Aperture MD × CMD40 × 40 mm
Declared junction efficiency95%
Roll size4 × 50 m (200 m²)
Applications
Where it can be considered.
- Roads and access routes
- Working platforms
- Car parks
- Granular sub-base reinforcement
- Weak-ground construction subject to design
Limitations
Where judgment is required.
The grade name is not a standalone design capacity.
Aggregate grading, aperture compatibility, formation, compaction and design method control performance.
TerraGrid Core is the current manufacturer grade; do not merge it with legacy CORE stock formats without confirming the SKU mapping.
Separation or filtration may require a separately selected geotextile.
Installation overview
Sequence the interfaces.
- 01
Accept and prepare the formation; remove obstructions that could damage the grid.
- 02
Roll the geogrid flat at the specified level and orientation, maintaining the approved overlaps and anchorage.
- 03
Place compatible angular aggregate without trafficking the exposed grid.
- 04
Spread and compact in controlled lifts so aggregate interlocks without displacing or damaging the grid.
- 05
Inspect overlaps, wrinkles, damage, cover and completed levels before the next construction stage.
This overview does not replace the current product document, approved project detail, risk assessment or inspection plan.
Selection comparison
Compare adjacent options.
Current documents
Downloads and controlled requests.
Relevant evidence
View project evidenceSub-base reinforcement project support
Submit formation, aggregate and loading so CORE can match the current grade and record a suitable reference project.
No verified public case in the current evidence set identifies this exact grade; the page does not imply one.Sources
Product evidence checked.
Straight answers
TerraGrid Core 20 questions.
Does Core 20 mean 20 kN/m in both directions?
Yes. The current manufacturer data declares 20 / 20 kN/m in the machine and cross directions.
Can this grade reduce aggregate depth?
A reinforced design may be more efficient, but any reduction must come from the formation, loading, aggregate, grid properties and chosen design method—not the grade name alone.
Does it replace geotextile?
Not automatically. A geotextile may still be needed for separation or filtration where the formation and aggregate require it.
Technical project support
Tell us about your project
Send us your brief, drawings or site information. Our technical team will help identify the right CORE product or system and the information needed to move the project forward.
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