Block vs. Stone Retaining Walls: Which Is Right for Your NWA Home?

Two Great Options, One Important Choice

When NWA homeowners start planning a retaining wall, material choice usually comes down to two options: manufactured concrete block (like Allan Block, Versa-Lok, or similar segmental retaining wall systems) or natural stone. Both are proven performers in Northwest Arkansas's climate and terrain. The right choice depends on your goals, your budget, and what you want your yard to look like when the project is done.

At GNG Underground, we've built both types across Bella Vista, Bentonville, Rogers, Fayetteville, and the surrounding area. Here's what we know from doing this work every day.

Concrete Block Retaining Walls

### What They Are

Manufactured concrete block systems are engineered specifically for retaining walls. They're designed to stack without mortar, lock together for structural stability, and allow water to pass through the system. Most blocks are available in multiple colors and face textures, so they're not purely utilitarian.

### Strengths

**Consistent strength.** Every block is manufactured to spec. You know exactly what you're getting structurally.

**Cost-effective.** Block walls generally cost less per square face foot than natural stone. For large projects — a long tiered wall on a Bella Vista hillside, for example — this difference adds up meaningfully.

**Faster installation.** Block goes in quicker than stone, which can matter if your project needs to be done ahead of a particular season or event.

**Predictable maintenance.** Block walls rarely need repairs outside of drainage-related issues. The uniformity that makes them easier to build also makes them easier to maintain.

### Limitations

Block walls have a manufactured look. For some properties that's perfectly fine — or even preferred. For homes with a more rustic or natural aesthetic, block can feel out of place. Color options have expanded significantly, but they're still working within manufactured constraints.

Natural Stone Retaining Walls

### What They Are

Natural stone walls use quarried or collected stone — often limestone, which is abundant in the Ozarks — laid dry-stack or mortared. They can be formal or informal depending on the cut of stone and the installation approach.

### Strengths

**Aesthetic appeal.** Nothing looks more at home in the Ozark landscape than native stone. A natural stone wall blends into NWA's terrain in a way that block simply can't replicate.

**Longevity.** A well-built natural stone wall, properly drained, can last 50 to 100 years. There's a reason old stone walls from the 1800s are still standing.

**Property value.** Buyers in the Bentonville and Bella Vista market respond strongly to well-executed natural stone hardscaping. It signals quality and craftsmanship.

### Limitations

Natural stone costs more to install — both the material cost and the labor are higher because every stone is unique and must be fitted individually. Installation takes longer. And for very large walls requiring engineered specifications, the variation in stone size can complicate the engineering process.

How to Choose

Ask yourself these questions:

• Is this wall primarily functional, or does it need to be a focal point of the landscape?
• What's my budget per linear foot?
• Does my neighborhood or HOA have preferences?
• How quickly do I need this completed?

For most functional walls on residential properties — holding back a slope, terracing a backyard, managing drainage — block is the practical choice. For walls that will be seen from the street, border a patio, or anchor a high-end landscape design, natural stone often wins on appearance alone.

GNG Underground builds both. We'll walk your site, understand your priorities, and recommend what makes the most sense for your property and budget. We serve all of NWA — give us a call.