What are 4ft granite cubes used for?

4ft granite cubes are used for major retaining wall systems, highway and road infrastructure, industrial site development, heavy shoreline protection, and vehicle security barriers. At 3,000–4,000 lbs each they are our most substantial product.

What equipment is needed to place 4ft granite cubes?

A large excavator (20-ton or larger) is required for safe placement of 4ft granite cubes due to their weight of 3,000–4,000 lbs each.

Can 4ft granite cubes be used as security barriers?

Yes — 4ft granite cubes are an effective vehicle security barrier. Their mass makes them virtually immovable without heavy equipment, and they are far more attractive than concrete jersey barriers.

Do you deliver 4ft granite cubes?

Yes — 4ft granite cubes are delivered via clam truck. Call us to arrange delivery across the Twin Cities metro and greater Minnesota. Call Chris at (651) 341-0438.

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4ft Granite Cubes

Our largest granite cubes — 48-inch blocks for major retaining walls, civil infrastructure, and commercial development projects requiring maximum structural mass.

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

Why Choose 4ft 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.

Maximum Structural Mass

At approximately 3,000–4,000 lbs each, 4ft granite cubes are among the heaviest individual stone units available. Their mass alone provides exceptional retaining capacity for even the most demanding structural applications.

Single-Course Wall Heights

A single course of 4ft cubes delivers 4 feet of wall height — making them highly efficient for large-scale projects. Two courses delivers an 8-foot wall in just two lifts, dramatically reducing installation time.

Civil-Grade Performance

4ft granite cubes meet the structural demands of civil and infrastructure retaining walls — road embankments, highway cuttings, and large commercial development sites where engineered performance is required.

Permanent Installation

Once placed, 4ft granite cubes are effectively permanent. Their mass makes them immovable without heavy equipment, and granite's natural durability means they will perform structurally for 100+ years.

Common Uses

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Major Retaining Wall Systems

Used for large commercial and civil retaining walls where maximum structural capacity is required and long-term performance is non-negotiable.

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Highway & Road Infrastructure

Placed as road cutting retaining walls and highway embankment retention structures on Minnesota DOT and county road projects.

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Industrial Site Development

Used on warehouse and industrial facility sites to create level building pads and retain large grade changes efficiently.

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Heavy Shoreline Protection

Placed along high-energy shorelines, river banks, and flood-prone areas where smaller stone would be displaced. Used for major shoreline restoration projects.

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Security & Perimeter Control

4ft granite cubes are the ultimate vehicle security barrier — virtually immovable without heavy equipment, and far more attractive than concrete jersey barriers.

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Agricultural Infrastructure

Used for large farm terrace walls, feedlot retention, and agricultural site development where structural mass and longevity matter more than aesthetics.

Product Specifications

Size	Approximately 48" x 48" x 48"
Material	Natural Minnesota Granite
Weight	Approximately 3,000–4,000 lbs per cube
Color	Grey with natural variation
Finish	Natural split face
Availability	In stock — call to confirm
Delivery	Clam truck or side dump — call to arrange
Equipment	Large excavator (20-ton+) required for placement
Pickup	East Side: Inver Grove Heights / West Side: Corcoran
Pricing	Call for current pricing and volume rates