MACKINAW™ | Unilock Contractors
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The time-worn face and bold scale of Mackinaw Wall sets the stage for a relaxed hardscape design by creating a natural stone wall look. Bundles contain several lengths, limiting the number of necessary cuts and allowing your crew to efficiently construct freestanding, retaining or garden walls, with speed and precision. Your client will enjoy the realistic surface textures created by our Reala™ Technology. Mackinaw looks great with or without coping which helps when budget is a concern.
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Makinaw™ Wall

Makinaw Wall is an attractive, natural stone-like landscape retaining block. This is a gravity system which relies on shear weight to retain small embankments or for use in making planters.

Applications – Design and build projects such as planters, steps, seat walls and other decorative landscape retaining walls. Recommended for straight applications only.

Capacity – walls up to 2 ft. (60 cm) in height

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 – Just like stacked natural stone, Makinaw Wall relies on gravity to hold back gardens and embankments.

Handling – No specific handling instructions.

Coping - This wall does not require coping, but coping is sometimes used to complete the installation visually. Choose any manufactured coping such as Ledgestone Coping or any of our natural stone coping options. Cutting may be required.

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Unilock products and service – best in the industry

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Retaining Wall Engineering: Why You Should Have It For Any Wall Over 3.5 Feet
The design of large walls should always be reviewed by a qualified, licensed engineer before construction begins—Unilock recommends this, and it’s required by many municipalities depending on a wall’s height.
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