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North Village, Douglas MA <br>Product: Concord Wall™ XL/Pisa2® XL
North Village, Douglas MA <br>Product: Concord Wall™ XL/Pisa2® XL
The Huntington. Burlington, MA <br> Concord Wall™ XL/ Pisa® XL
The Huntington. Burlington, MA <br> Concord Wall™ XL/ Pisa® XL
Bishops Place West Hartford, CT <br>Product: Concord Wall™/ Pisa2® in Almond Grove
Bishops Place West Hartford, CT <br>Product: Concord Wall™/ Pisa2® in Almond Grove
Product Concord Wall® Color: Natural
Product Concord Wall® Color: Natural
Product Concord Wall® Color: Natural
Product Concord Wall® Color: Natural
Product Concord Wall® Color: Nevada
Product Concord Wall® Color: Nevada
Product Concord Wall® Color: Sandstone
Product Concord Wall® Color: Sandstone
The built-in setback design of Concord Wall automatically forms the correct slope, ensuring a highly stable retaining wall. Utilizing the product’s tapered components, you can form curved walls and steps.

Colors

Special Order Colors
Almond Grove

Almond Grove

Granite

Granite

Sierra

Sierra

Minimum quantities and special pricing may apply. Contact us for more details.

Custom Options

Custom Colors and Finishes
With so many different options for customization we ask that you contact your local Unilock Representative for more information about customizing this product.
Minimum quantities will apply.

Shapes & Sizes

Special Order Shapes & Sizes

Corner

30 cm x 20 cm x 15 cm

11.75" x 7.875" x 5.875"

Tapered

30 cm x 20 cm x 15 cm

11.75" x 7.875" x 5.875"

XL Unit

40 cm x 30 cm x 15 cm

15.75" x 11.75" x 5.875"

Coping / Step Tread

30 cm x 60 cm x 7.5 cm

11.75" x 23.625" x 3"

Wedge Cap Unit

33 cm x 24.8 cm x 8.6 cm

13" x 9.75" x 3.375"

Minimum quantities and special pricing may apply. Contact us for more details.

Features

Custom Colors
May be available for this product. Minimum quantities will apply.
Applications
Garden Wall
Retaining Wall
Steps
Surface Texture
Split

Packaging

Face Feet Per Linear Feet Per Units Per Per Bundle Lbs Per
Stones & Bundling Bundle Unit Bundle Unit Bundle Face Feet Layers Sections Unit Bundle
Corner Unit 15 0.83 18 1.2 3 820
Tapered Unit 20 0.33 60 3 3 2580
XL Unit 21.33 0.67 32 1.50 4 2419
Coping 2 2
Wedge Cap Unit 64 96 8 2544

Notes: Tapered units will allow for a minimum 7ft. outside radius. Wedge cap radius = 7', contains 8 Closed-end units per bundle. Closed-end not sold separately. All Concord Wall™ is layered and shipped on refundable skid. Skip Tread is sectioned. Closed-end step tread is available.

Patterns

Important Information

Maximum height without setback 36" (under optimum conditions). Maximum height with setback is 42" (under optimum conditions). Higher walls can be achieved using geogrid reinforcement.

Unilock, through Risi Stone® Systems International, can provide preliminary site engineering for most commercial projects. Soils information, site drawings, and loading requirements are some of the information details required in order to provide this preliminary site engineering. Contact your local Unilock Representative for details. 

Want help calculating your order?
Use our interactive paver calculator to get quick, easy and accurate specifications for your project!

Paver Calculator

TECHNICAL INFORMATION

ASTM C 1372 Standard Specifications for Dry-Cast Segmental Retaining Wall Units

Conforms to:

  • C140 for Absorption and Compressive Strength > 3000 PSI
  • C1262 for Freeze Thaw Durability <1% mass loss
  • C1372 Overall dimensional variations permissable for width, height and length ± 1/8” (±3.2mm)

Unilock standards exceed 6,000 PSI for Concord Wall products with:

  • 4% absorption avg.
  • 5% absorption max.
  • Dimensional Accuracy +/- 5/64” (±2.00mm)

Test results available upon request

 

LEED INFORMATION

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

 

HEALTH PRODUCT DECLARATION

Concord Wall HPD

Specification – Engineered Wall

Specification – Non-Engineered Wall

For more information on specifications for Concord Wall, please contact your local Unilock representative.

We’re here to help! Upload your specs for a complimentary review.

 

Quickly and easily estimate quantities for your Wall Project, including block area, Geogrid and imported stone quantities, as well as Corners and Caps! Create professional estimation reports and automatically generate Plan, Elevation and Section views of your Wall in minutes. For further instruction, please view the tutorial here.