What are 3ft granite cubes used for?

3ft granite cubes are used for large retaining walls, commercial and industrial site retention, highway embankments, heavy shoreline protection, and vehicle security barriers. Each cube weighs 1,500–1,800 lbs.

What equipment is needed to place 3ft granite cubes?

A full-size excavator is required for placement of 3ft granite cubes. We can coordinate placement with our own equipment fleet if needed.

How many 3ft granite cubes do I need for a retaining wall?

A single course of 3ft cubes delivers 3 feet of wall height. Call us to discuss your wall dimensions and we can calculate material quantities for your project.

Are 3ft granite cubes available for delivery?

Yes — we deliver 3ft granite cubes via clam truck or side dump across the Twin Cities metro and greater Minnesota. Call Chris at (651) 341-0438 for current availability and pricing.

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3ft Granite Cubes

Large-format 36-inch granite cubes for serious retaining wall construction, commercial landscaping, and civil infrastructure projects across Minnesota.

Call for Pricing: (651) 341-0438 All Products

Why Choose 3ft Granite Cubes?

Granite Companies has specialized knowledge in sourcing and processing minnesota granite, ensuring that every load leaving our yard meets the highest quality standard — the same standard we apply to our own retaining wall construction projects.

Massive Structural Mass

Each 3ft cube weighs approximately 1,500–1,800 lbs — providing exceptional resistance to soil pressure and lateral forces without the need for tie-backs or geogrid reinforcement on most applications.

Fewer Courses Required

Larger cube size means fewer courses to achieve wall height. A single course of 3ft cubes delivers 3 feet of wall — reducing installation time and labor cost significantly compared to smaller blocks.

Long Service Life

Granite retaining walls built with 3ft cubes last generations. Unlike concrete block or timber, granite does not spall, rot, or deteriorate over time — the wall you build today will outlast the property.

Impressive Visual Impact

3ft granite cubes create a bold, authoritative wall face that reads as permanent and substantial. The natural grey granite color weathers beautifully over time, gaining character rather than degrading.

Common Uses

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Large Retaining Walls

The primary application — used for walls 4 to 12+ feet high on residential, commercial, and civil projects where structural performance and longevity are paramount.

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Commercial & Industrial Sites

Ideal for commercial property development, warehouse sites, and industrial facilities where large-scale slope retention is required.

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Road & Highway Embankments

Used by civil contractors for road cutting retaining walls and highway embankment retention where high load capacity is required.

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Heavy Erosion Control

Placed in high-energy water environments — larger rivers, streams, and exposed lake shorelines — where smaller stone would be displaced by water movement.

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Subdivision Development

Used by developers to create level building pads, retain cut slopes, and manage grade changes on residential subdivision sites.

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Security Barriers

Placed as vehicle security barriers around commercial facilities, government properties, and high-value sites.

Product Specifications

Size	Approximately 36" x 36" x 36"
Material	Natural Minnesota Granite
Weight	Approximately 1,500–1,800 lbs per cube
Color	Grey with natural variation
Finish	Natural split face
Availability	In stock — call to confirm
Delivery	Same day available — clam truck or side dump
Equipment	Full-size excavator required for placement
Pickup	East Side: Inver Grove Heights / West Side: Corcoran
Pricing	Call for current pricing and volume rates