PISA 2™ Walls and Verticals | Unilock Chicago

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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.

Pisa2 150x400x300 Sierra
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Pisa2 150x400x300 Sierra
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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.

Colors
Applications
Fire Feature e1632317154571
Fire Features
Garden Wall e1632317150577
Garden Walls
Non structural Wall
Outdoor Kitchen e1632317137972
Outdoor Kitchen
Pillar e1632317122239
Pillars
Structural Wall e1632317087703
Structural Wall
Water Feature e1632317028508
Water Features
Shape and size
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12" COPING
300mm x 75mm x 300mm
11 7/8" x 3" x 11 7/8"
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12" COPING
300mm x 75mm x 300mm
11 7/8" x 3" x 11 7/8"
img
12" COPING
300mm x 75mm x 300mm
11 7/8" x 3" x 11 7/8"
img
CORNER DOUBLE UNIT
200mm x 150mm x 300mm
7 7/8" x 5 7/8" x 11 7/8"
img
CORNER DOUBLE UNIT
200mm x 150mm x 300mm
7 7/8" x 5 7/8" x 11 7/8"
img
CORNER DOUBLE UNIT
200mm x 150mm x 300mm
7 7/8" x 5 7/8" x 11 7/8"
img
XL WALL
400mm x 150mm x 300mm
15 3/4" x 5 7/8" x 11 7/8"
img
XL WALL
400mm x 150mm x 300mm
15 3/4" x 5 7/8" x 11 7/8"
img
XL WALL
400mm x 150mm x 300mm
15 3/4" x 5 7/8" x 11 7/8"
Technologies
Technologies
Classic
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Classic

Classic Coat helps protect the surface texture and enhances the color of Classic products. For purchasers who prefer the look of a sealed project, these factory-sealed products save the time and expense of after-market sealing.

Our technologies
Colors
SIERRA
NEVADA
GRANITE
Pick a color
SIERRA
NEVADA
GRANITE
Information
Information
Packaging
Downloads

Pisa

Pisa is the most versatile residential and commercial retaining wall block on the market today. Use Pisa to construct projects from low walls to high walls.

Applications – Design and build projects such as planters, steps, grill islands, pillars, seat walls and water features. Can be used for straight and curved installations (Radius 5’ is the tightest radius).

Capacity – Gravity walls up to 39” (1m). Geogrid reinforced walls up to 20 ft. (6.1m).

Recommended Base Stabilization – one layer of DriveGrid stabilization grid between subgrade and base material. 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).

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.)

Leveling – Leveling retaining wall blocks directly on top of gravel is tedious and generally does not yield the best results. U-Grip Base units or universal base pads are recommended under all Unilock walls for improved accuracy and speedier installation. Additional benefits include long term structural integrity and an overall better appearance. Poured concrete leveling pads, reinforced with rebar, are also a great way to accomplish leveling, particularly for larger installations. You must ensure that the concrete is poured and finished perfectly in order to achieve a good visual appearance.

Connection – features a tongue and groove connection. Use appropriate concrete adhesive for connection between units where the key has been removed or for corners. Always read adhesive manufacturers’ directions prior to gluing.

Handling – No specific handling instructions.

Coping - This wall requires coping. Choose a manufactured coping such as Unilock Universal Coping or any of our natural stone coping options. Install with tight joints or 3/16” gap between units and amend with an exterior latex caulking. Cutting may be required; a diamond blade saw is required to cut coping properly. Glue all coping using a specially formulated concrete adhesive that is strong and will not break down over time. Always read adhesive manufacturers’ directions prior to gluing.

Layers per BundleLin Ft per Bundle - SoldierUnits per BundleUnits per LayerUnits per FcFtLbs per LayerLbs per BundleLbs per UnitLin Ft per Layer - SoldierLin Ft per Unit - SoldierFcFt per LayerFcFt per BundleFcFt per UnitPer Bundle SectionUnits Per SectionLbs Per SectionLin Ft per Bundle - SailorLin Ft per Layer - Sailor
XL WALLCORNER DOUBLE UNITXL WALLCORNER DOUBLE UNIT12" COPING12" COPINGXL WALLCORNER DOUBLE UNIT12" COPING
Layers per Bundle434377437
Lin Ft per Bundle - Soldier42.67 - 42.67 - - - 42.67 - -
Units per Bundle321832184242321842
Units per Layer868666866
Units per FcFt1.500.601.500.602.062.061.500.602.06
Lbs per Layer628.50547.11628.50547.11410.70410.70628.50547.11410.70
Lbs per Bundle25141,641.3325141,641.332,874.902,874.9025141,641.332,874.90
Lbs per Unit78.5691.1978.5691.1968.4568.4578.5691.1968.45
Lin Ft per Layer - Soldier10.67 - 10.67 - - - 10.67 - -
Lin Ft per Unit - Soldier1.33 - 1.33 - - - 1.33 - -
FcFt per Layer5.3310.005.3310.002.912.915.3310.002.91
FcFt per Bundle21.3330.0121.3330.0120.3420.3421.3330.0120.34
FcFt per Unit0.671.670.671.670.480.480.671.670.48
Per Bundle Section - 6 - 622 - 62
Units Per Section - 3 - 32121 - 321
Lbs Per Section - 273.56 - 273.561,437.451,437.45 - 273.561,437.45
Lin Ft per Bundle - Sailor - - - - 82.9582.95 - - 82.95
Lin Ft per Layer - Sailor - - - - 11.8511.85 - - 11.85

Knowledge
Center

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