Shape and size
![](https://contractor.unilock.com/storage/2024/01/nordiccobble_90x94x60_granitemist-68x68.png)
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
![](https://contractor.unilock.com/storage/2024/04/nordiccobble_90x94x60_opalblend_v2-68x68.png)
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
![](https://contractor.unilock.com/storage/2024/01/nordiccobble_90x94x60_darkcharcoal_on-68x68.png)
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
![](https://contractor.unilock.com/storage/2024/01/nordiccobble_90x94x60_darkcharcoal_on.png)
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
![](https://contractor.unilock.com/storage/2024/07/driveway-app.png)
![](https://contractor.unilock.com/storage/2024/07/heavy-duty-vehicular-app.png)
![](https://contractor.unilock.com/storage/2024/07/patio-walkway-app.png)
![](https://contractor.unilock.com/storage/2024/07/permeable-app.png)
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
TRAPEZOID
89.9mm x 94mm x 60mm
3 5/8" x 3 3/4" x 2 3/8"
NORDIC COBBLE™
Recommended Base Stabilization – one layer of DriveGrid™" stabilization grid between subgrade and base material. Recommended depth 8” to 10” below pavers for maximum stability and performance. Use under Standard Base or Permeable Base.
Standard Base – Min. 6” – 8” of ¾” Crusher Run gravel (any road base standard in accordance with ASTM-D2940) compacted to 98% Standard Proctor Density (SPD).
Standard Bedding Course – 1” thick of coarse sand– in accordance with ASTM-D2940 screeded over base.
Alternative Permeable Base – Min. 6” – 8” of ¾“ clear open-graded stone compacted to achieve full particle lock-up and consolidation. (Clear open-graded does not compact but does consolidate slightly by rattling the particles together.)
Alternative Permeable Bedding Course – 1” thick of 1/4” clear open-graded chip stone – (ASTM No. 8) screeded over base.
Jointing Material and Joint Stabilization
All sands must meet ASTM C144 or C33 Specifications. For best appearance and optimal performance,, keep jointing materials approximately 1/8” below the chamfer (bevel edge) of the paver.
Good Option: Ordinary sharp jointing sand in accordance with ASTM C144 or C33. (Common name: Concrete Sand)
Best Option: Any polymeric sand or ordinary concrete sand stabilized by a water-based or solvent-based joint sand stabilizer sealer. Always follow manufacturer’s application specifications and requirements.
Permable Option: For permeable applications use ASTM No. 8 or 9 for filling paver joints.
Handling – This product has no special handling requirements.
Edge Restraint - Always install an edge restraint around the perimeter of any paver installation not restrained by building structures. Spike-in edge restraints come in plastic and metal and work well for most applications. A concrete curb or a sub-surface concrete wedge can also be installed to retain the edge.
Paver Compaction - Nordic Cobble has a larger joint than most paver styles, therefore it is recommended that you pre-fill the joints halfway up the joint with jointing material prior to surface compaction. Use a plate compactor outfitted with a protective polymer pad or use a rubber-roller compactor for the final compaction.
The Americans with Disabilities Act Accessibility Guidelines (ADAAG) provides measurable criteria to determine compliance, not individual product evaluation. Gaps, joints or openings, greater than ½” horizontal and ¼” vertical should be avoided as they can disrupt wheelchair maneuvering (United States Access Board – Guidelines and Standards).
Download Technical SheetJeff Hummel from Hummel's Landscape explains why he chooses Unilock products first, and why the quality of the product makes it easy when it comes time to install.
Jeff HummelLeon Raber from Creative Hardscapes talks about the quality and innovation of the Unilock product, and the wide range of color tones available. He also explains how he is most impressed with the contractor service provided by Unilock, and how the support makes him feel like family.
Leon RaberDave Caroselli from Shearer Patio & Landscape Services explains why being creative in the hardscape industry is something that he enjoys and why he feels that Unilock product is top tier in the industry. He also talks about how the UniLyft system has helped him efficiently complete a project with speed and precision.
Dave CaroselliVeuillez appeler le 1-800-Unilock ou contacter l'un de nos responsables de territoire.