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Dura-Hold II ®

Dura-Hold II is similar to Dura-Hold in appearance, but is just over half the size, making it economical in terms of material cost, speed and efficiency for lower retaining walls. Its large scale (standard size weighs 940lbs) is disguised by false joints which cast bold shadows to give the appearance of several individual blocks in each unit. Build gravity walls up to 4ft (1.2m) or grid reinforced walls up to 25ft (7.6m) high with proper engineering under typical conditions. Concrete tie-backs or geogrid give this wall various engineering options. Coping units are also available.

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Dura-Hold II ®

Dura-Hold II is similar to Dura-Hold in appearance, but is just over half the size, making it economical in terms of material cost, speed and efficiency for lower retaining walls. Its large scale (standard size weighs 940lbs) is disguised by false joints which cast bold shadows to give the appearance of several individual blocks in each unit. Build gravity walls up to 4ft (1.2m) or grid reinforced walls up to 25ft (7.6m) high with proper engineering under typical conditions. Concrete tie-backs or geogrid give this wall various engineering options. Coping units are also available.

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Applications
Structural Walls
Shape and size
Special order
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CORNER 90 LEFT
900mm x 300mm x 360mm
35 1/2" x 11 7/8" x 14 1/4"
Special order
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CORNER 90 RIGHT
900mm x 300mm x 360mm
35 1/2" x 11 7/8" x 14 1/4"
Special order
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COPING CLOSED END
1,830mm x 300mm x 360mm
72" x 11 7/8" x 14 1/4"
Special order
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COPING STANDARD
1,830mm x 300mm x 360mm
72" x 11 7/8" x 14 1/4"
Special order
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STANDARD
1,830mm x 300mm x 360mm
72" x 11 7/8" x 14 1/4"
Special order
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TIE-BACK
360mm x 300mm x 1,830mm
14 1/4" x 11 7/8" x 72"
Technologies
Technologies
Classic
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Classic

Our budget-friendly, Unilock Classic pavers and walls are manufactured to exceed ASTM standards for quality and strength. Available in classic shapes and styles, these products utilize a traditional product mix of large and small aggregates that is consistent from top to bottom with color mixed throughout.

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Dura-Hold II ®

Dura-Hold ®II has the same visual appearance of Dura-Hold, and is generally used in conjunction with Dura-Hold for areas of a project where the massive size of Dura-Hold is not required but the look needs to be maintained. Each module weighs 940 lbs (426 kg) - which is half the weight of Dura-Hold - but the installation rate/coverage is the same. From a cost standpoint, Dura-Hold II is very efficient.

Applications – Structural retaining walls for large embankments

Capacity – Gravity walls up to 39” (1m). Geogrid reinforced walls up to 23 ft. (7m)

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 large retaining wall blocks directly on top of gravel is difficult. U-Grip Base units or universal base pads are recommended under most Unilock walls for improved accuracy and make for a speedier installation. For Durahold II, turn the U-Grip base units 90 degrees for a larger front to back latitude for the blocks to sit on. For larger projects, it is recommended to install a poured concrete leveling pad reinforced with rebar. You must ensure that the concrete is poured and finished perfectly in order for the blocks to sit properly without cracking.

Connection – features a tongue and groove connection.

Handling – This is a mechanically placed wall system. Special clamps for lifting are available for use during project.

Coping - This wall requires the Durahold II specific coping. Coping attaches with tongue and groove connection. No adhesive required.

Units per LayerUnits per FcFtLbs per LayerLbs per UnitFcFt per LayerFcFt per UnitLayers per BundleLin Ft per Bundle - SoldierUnits per BundleLbs per BundleLin Ft per Layer - SoldierLin Ft per Unit - SoldierFcFt per Bundle
CORNER 90 RIGHTCORNER 90 LEFTCOPING STANDARDTIE-BACKSTANDARDCOPING CLOSED END
Units per Layer111111
Units per FcFt0.240.240.170.850.170.17
Lbs per Layer460.00460.00884.00940938.00884
Lbs per Unit460.00460.00884.00940938.00884
FcFt per Layer4.174.176.021.176.026.02
FcFt per Unit4.174.176.021.176.026.02
Layers per Bundle - - 1111
Lin Ft per Bundle - Soldier - - 6.02 - 6.026.02
Units per Bundle - - 1111
Lbs per Bundle - - 884.00940938.00884
Lin Ft per Layer - Soldier - - 6.02 - 6.026.02
Lin Ft per Unit - Soldier - - 6.02 - 6.026.02
FcFt per Bundle - - 6.021.176.026.02

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