THORNBURY™ SMOOTH Driveway Pavers, Pavers, Permeable Pavers, Walkway Pavers | Unilock Boston Contractor
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THORNBURY SMOOTH

Colors
Thornbury Smooth is available in a 3 stone format which can be installed by hand or by UniLyft. The 70 mm thickness and the generous joint spacing between units makes it an ideal paver for permeable driveways or patios.
Colors
Shape and size
Random Bundle

LARGE RECTANGLE
350mm x 420mm x 70mm
13 7/8" x 16 5/8" x 2 3/4"

MEDIUM RECTANGLE
210mm x 350mm x 70mm
8 3/8" x 13 7/8" x 2 3/4"

SMALL RECTANGLE
173mm x 210mm x 70mm
6 7/8" x 8 3/8" x 2 3/4"

LARGE RECTANGLE
350mm x 420mm x 70mm
13 7/8" x 16 5/8" x 2 3/4"

MEDIUM RECTANGLE
210mm x 350mm x 70mm
8 3/8" x 13 7/8" x 2 3/4"

SMALL RECTANGLE
173mm x 210mm x 70mm
6 7/8" x 8 3/8" x 2 3/4"

LARGE RECTANGLE
350mm x 420mm x 70mm
13 7/8" x 16 5/8" x 2 3/4"

MEDIUM RECTANGLE
210mm x 350mm x 70mm
8 3/8" x 13 7/8" x 2 3/4"

SMALL RECTANGLE
173mm x 210mm x 70mm
6 7/8" x 8 3/8" x 2 3/4"

Technologies
Applications
Driveway
Patio & Walkway
Permeable
Technical information
  • Laying Patterns
  • Packaging
  • Things to know
  • Cross Sections
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Laying Patterns
  • Laying Patterns
  • Packaging
  • Things to know
  • Cross Sections
LP Thornbury Fixed Random B pdf
LP Thornbury Fixed Random B pdf
LP Thornbury Fixed Random C pdf
LP Thornbury Fixed Random C pdf
LP Thornbury Fixed Random A pdf
LP Thornbury Fixed Random A pdf
Unit Thickness (mm)
Layers per Bundle
Sq Ft per Bundle
Sq Ft per Layer
Sq Ft per Unit
Units per Bundle
Units per Layer
Lbs per Bundle
Lbs per Layer
Lbs per Unit
(70) RANDOM
Random Bundle
70
8
88.61
11.08
0.92
96
12
2,838.03
354.75
29.56
THINGS TO KNOW

THORNBURY SMOOTH

 

Thornbury Smooth has a modern random flagstone appeal and is an attractive and economical solution for permeable and non-permeable projects. Paver-spacer technology allows for joint openings which facilitate the drainage of water into the subgrade making it perfect for site drainage, managing water runoff, or water harvesting projects.

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.

Special Note: Concrete Direct Overlay – In some areas of the country and in some applications pavers are very successfully placed directly over concrete.  Concrete as a base is in itself quite strong, but it can affect the structural integrity of the paver particularly in vehicular applications, where the concrete below is sub-par. The following considerations must be taken into account to insure that the concrete below the surface is ideal:

  1. Concrete integrity – concrete must be in good condition, and not crumbling
  2. Drainage slope – concrete below must be sloped away from all buildings and structures
  3. Drainage holes – In lowest areas of the concrete, drill 1” holes in concrete (on 12” centers) and fill holes with ¼” chip (ASTM No. 8)
  4. Base drainage - the area below the concrete must not be subject to frost movement
  5. Surface - surface must be totally smooth and flat equivalent to the desired finished surface
  6. Waterproofing - may be required when installing pavers over concrete where there is a basement or cold cellar below. Install an impervious rubber membrane over the surface prior to installing any pavers over the surface.
  7. Jointing Sand -  Use an impervious polymeric sand when installing over concrete

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.

              

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 - Always use a protective polymer pad on the bottom of your compactor when doing the final compaction of the pavers. An alternative is to use a rubber-roller compactor for the final compaction.

Cleaners – Any cleaner specifically designed for pavers may be used for color restoration or general cleaning. Follow manufacturer’s dilution rates and application procedures. Always test a small area to make sure the results are as expected.

 Sealers 

  • Product may be sealed for aesthetic or cleanliness reasons but it is not required
  • Use any sealer approved for concrete pavers
  • Selecttype for desired aesthetics
  • Productmust be cleaned before sealing
  • Always read and follow manufacturer’s application procedures
  • Always test a small area to make sure the results are as expected

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).

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HERE'S WHAT
CONTRACTORS ARE
SAYING
Why Unilock’s Products Are Great to Install

Jeff 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 Hummel
Hummel's Landscape
Unilock products and service – best in the industry

Leon 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 Raber
Creative Hardscapes
Why Unilock products are top tier

Dave 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 Caroselli
Shearer Patio & Landscape Services
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