Timeless beauty of flagstone.Available in two nature inspired shades, Rivenstone combines the durability of concrete with the character and flexibility of natural stone. It’s an ideal choice for those looking to add enduring quality and timeless appeal to roof decks, courtyards, pool surrounds, terraces and patios.
Shapes & Sizes
24 x 24
60 cm x 60 cm x 4.5 cm
23.625" x 23.625" x 1.75"
18 x 24
60 cm x 45 cm x 4.5 cm
23.625" x 17.75" x 1.75"
12 x 24
60 cm x 30 cm x 4.5 cm
23.625" x 11.75" x 1.75"
Jointing Compound - Small detail, Big difference
To add the finishing touches on your project experiment with the different sand options below. Different sand colors can have a significant impact on the overall look and feel of your paver patio, driveway or pool deck. Experiment with the different sand color options below. By clicking the different sand colors the joints will change in the image on the left. Click the image to see a larger version
Learn About Rivenstone
Slab flex demo
May be available for this product. Minimum quantities will apply.
PedestrianRoof DeckRoof Deck Pedestal
Reala Surface TechnologyUltra-realistic textures cast from actual natural stone, brick and cobblestones.Stonemark™StoneMark™ products are designed to add classic elegance to any project with all the surface texture and color variation of natural stone, but the durability and precision of a manufactured paver.
|Unit Thickness||Sq. Ft. Bndl.||Sq. Ft. Layer||Sq. Ft. Stone||Layers Bndl.||Ln Ft Sec. Soldier||Ln Ft Bndl. Soldier||Sq Ft Ln Ft Soldier||Ln Ft Sec. Sailor||Ln Ft Bndl. Sailor||Sq Ft Ln Ft Sailor||Units Sq. Ft.||Lbs Bndl.||Lbs Sec.||Units Bndl.|
Notes: Sold in full bundles only and is produced and packaged on a specially designed refundable skid. Do not use a vibratory plate compactor for the final surface compaction. Product is not intended for vehicular applications. All measurements are nominal. Contact Unilock for more information.
Recommended for sand-set granular installations. Due to the nature of this product, joint spacing may be irregular.
The elegance and charm of Rivenstone lies in its Reala flagstone surface texture and the rich colors of the EnduraColor surface. Cast from molds derived from quarried flagstone, each piece has a unique clefted appearance. The choice of multiple sizes adds tothe sophistication of your final design.
Base Requirement & Bedding Course – Standard paver base specification or on open graded material for raised patios, terraces or concrete overlays. Do not use for vehicular applications.
Handling and Installation – This product cannot be compacted with a plate tamper. Use a hand mallet to make minor height adjustments. Care must be taken to avoid tossing stones so that they bang against each other. Damage to the surface appearance can happen if handled too rough. Both random and linear patterns are common. Install from multiple pallets for best color distribution. Install with ¼” spacing between units.
Jointing Material and Joint Stabilization
- Good: Dry jointing sand stabilized by a water-based or solvent based joint sand stabilizer (joint sand stabilizer sealer may make the surface slightly slippery)
- Best: EasyPro is best especially for open-graded base applications. Ensure that an approximate ¼’ joint is maintained during installation so that adequate jointing material can fill the voids.
Special Note: Alliance Gator Max Polymeric Sand (overlays). Make sure all proper Polymeric sand installation procedures are followed.
- Product must be cleaned with Techniseal Hardscape Cleaner or similar before sealing
- Product may be sealed but it is not required
- Unilock Unicare, Alliance, Surebond, BP Pro and Techniseal sealers can be used. Select sealer on the basis of desired appearance
Cleaners – Any cleaner can be used but Techniseal Hardscape Cleaner is commonly used.
Special note –To avoid issues with height variance, do not use as a direct overlay on concrete.
Recommendations for Pedestal Installation - Large Format Paver
The maximum recommended raise of the foot plan is 10cm. It is recommended to use 5 supports per Rivenstone 24"x24" slab. For raises greater than 10cm, please contact a qualified engineer.
Want help calculating your order?
Use our interactive paver calculator to get quick, easy and accurate specifications for your project!
ASTM C 936 Standard Specifications for Solid Concrete Interlocking Paving Units
- C140 for Absorption and C293 Compressive Strength > 1,000 PSI
- C67 for Freeze-thaw Durability
- C418 for Abrasion Durability
Unilock standards exceed 8,500 PSI for Rivenstone™ products with:
- 4% absorption avg.
- 5% absorption max.
- Dimensional Accuracy +/- 3/64”
Test results available upon request
Meets the U.S. Architectural & Transportation Barrier Compliance Board Slip-Resistance Surfaces Advisory Guidelines
Materials & Resources: LEED V4:
Building Product Disclosure and Optimization
Sourcing of Raw Materials – Sourcing of Raw Materials and Extraction • 1 point
Sourcing of Raw Materials – Leadership Extraction Practices • 1 point
Material Ingredient Reporting – Material Ingredient Reporting • 1 point
Material Ingredient Reporting – Material Ingredient Optimization • 1 point
Environmental Product Declaration • 1 point
For specifications please contact your local Unilock representative