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Pisa™

The built-in setback design of Pisa automatically forms the correct slope, ensuring a highly stable retaining wall. Utilizing the product’s tapered components, you can form curved walls and steps.
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UNITS & SIZES
UNITS & SIZES
COLORS
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STANDARDS & LEED
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WALL UNITS

Wall units function as modular components that are stacked to build the height and structure of a wall.

INDIVIDUAL UNITS
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CORNER DOUBLE UNIT
7 7/8 x 11 7/8 x 5 7/8"
(200 x 300 x 150mm)

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XL WALL
15 3/4 x 11 7/8 x 5 7/8"
(400 x 300 x 150mm)

COPING

Coping units are the finishing touch to walls, pool edges, fire pits, stairs, and other vertical features.

INDIVIDUAL UNITS
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12" COPING
11 7/8 x 11 7/8 x 3"
(300 x 300 x 75mm)

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GRANITE

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NEVADA

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SIERRA

*Colors may vary by plant of manufacture. Final product selection should be made with full size samples and mock-ups. Contact your Unilock representative for details.

DESIGN FILES
Retaining Wall-Unilock-Pisa XL-BIMsmith Market
.PDF
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Retaining Wall-Unilock-Pisa-BIMsmith Market
.PDF
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CROSS SECTIONS
Pisa Grid Reinforced 3-1 Slope Load 10.2ft 3.12m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 10.8ft 3.28m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 11.3ft 3.43m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 3.2ft .99m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 3.7ft 1.14m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 4.3ft 1.3m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 4.8ft 1.45m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 5.2ft 1.6m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 5.7ft 1.75m
.PDF
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Pisa Grid Reinforced 3-1 Slope Load 6.2m 1.9m
.PDF
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LOAD MORE CROSS SECTIONS & DETAILS
SUSTAINABILITY DOCUMENTS
101.1 EPD Unilock DRYCAST
.PDF
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SDS
Unilock Masonry Unit SDS US 022516 FINAL.pdf
.PDF
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SPECIFICATIONS
32-32-23-SRW-Pisa-Siena-Sonoma-DuraHold.pdf
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ASTM STANDARDS
Unilock meets and exceeds: ASTM C1372 - Standard Specifications for Dry-Cast Segmental Retaining Wall Units using test methods conforming to ASTM C1262 for Freeze Thaw Durability <1.5% and ASTM C140 for Compressive Strength > 3000psi and Absorption <7lb/ft2. NCMA Zone 3 Recommendations for de-icing salt exposure with Compressive Strength >5500 psi. Sheer strength test data available per ASTM D6916 and ASTM 6638 with geosyntheic reinforcement upon request.
LEED
LEED v4.1 Building Product Disclosure and Optimization – Sourcing of Raw Material - Responsible Sourcing of Raw Material Building Product Disclosure and Optimization – Material Ingredients - Material Ingredient Reporting

Pisa Wall: Capabilities & Features

Gravity walls up to 3' (1m)

Geogrid reinforced walls up to 23' (7 m).

Vertical or 7.12° battered walls

Curved or straight walls

Interlocking tongue and groove

Strong, solid body design

5,500 PSI minimum

Small-format for hand-placed installation

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