Discover the Benefits of Using Open-Graded Base in Paver Installation – A Comprehensive Guide
Why Open-Graded Base is the Gold Standard for Paver Installations in MN & WI
When it comes to building driveways, patios, and walkways that last, one critical element often gets overlooked—the base. In regions like Minnesota and Wisconsin, where freeze-thaw cycles wreak havoc on outdoor surfaces, choosing the right foundation can mean the difference between a flawless paver surface and one riddled with cracks, heaving, and costly repairs.
That’s where the open-graded base system stands out as a clear winner—and why more homeowners are turning away from concrete and asphalt in favor of professional paver installations using this superior method.
What is an Open-Graded Base?
An open-graded base is made of angular, crushed stone aggregates that are specifically sized and layered to allow water to drain freely through the base instead of getting trapped beneath the surface. There are no fine particles (like sand or screenings), which makes it a true “drainable” system.
Typically, the installation includes:
A sub-base of larger fractured stone (like 3″ minus)
A base layer of clean ¾” or 1½” stone
A bedding layer of ¼” chip or ASTM #8 gravel
All of this sits underneath your interlocking concrete pavers.
Why It Matters: Freeze-Thaw Reality in the Upper Midwest
If you live in Minnesota or Wisconsin, you already know the weather is no joke. We experience dozens of freeze-thaw cycles every year. That means any moisture trapped under a solid surface—like asphalt or poured concrete—can freeze, expand, and lift the material above it. Once it thaws, it settles unevenly…and the cycle repeats.
Over time, this leads to:
Cracks in concrete slabs
Buckling in asphalt driveways
Heaving in traditional paver installs with compacted fines
Open-graded base systems avoid this problem entirely by eliminating water retention. Water moves through the system and into a drainage field or outflow pipe—not back up into your patio or driveway.
Why Pavers with Open-Graded Base Outperform Concrete and Asphalt
Homeowners often weigh their options between asphalt, poured concrete, or pavers. Here’s why pavers on an open-graded base are the long-term investment:
Concrete & Asphalt Limitations
Poor flexibility = prone to cracking
Costly to repair or replace (a full demo is usually needed)
Vulnerable to salt, moisture, and freeze-thaw damage
No built-in drainage without added systems (and added cost)
Open-Graded Paver Systems
Flex with ground movement instead of cracking
Drain quickly to avoid frost damage
Easy to repair by lifting and relaying individual pavers
Visually customizable with patterns, borders, textures, and color
Long-term warranties and lower life-cycle cost
Why This System is Perfect for Driveways, Patios & Walkways
Driveways
Durability under load: Paver driveways built on open-graded bases can support vehicles without rutting or cracking.
Winter resilience: Salt doesn’t degrade the pavers, and meltwater drains quickly.
Patios
Drainage: Say goodbye to pooling water or muddy edges.
Design flexibility: Pavers come in endless colors and shapes—ideal for entertainment areas that match your home’s style.
Walkways
No frost heave: Paths stay smooth and trip-free even after brutal winters.
Clean edges: No crumbling or separating like concrete walkways.
4 Key Benefits of Open-Graded Paver Systems
Paver installations using an open-graded base system give you:
✅ Superior Drainage – No standing water, no frost heave
✅ Long-Term Stability – Less shifting, settling, or movement
✅ Easy Maintenance – Individual pavers can be replaced in minutes
✅ Built-In Longevity – Outlasts asphalt or concrete by years
Ready to Upgrade Your Outdoor Surface?
At Earthworks Landscaping, we specialize in open-graded paver installations designed for the harsh Midwest climate. Whether you’re replacing a cracked driveway, dreaming of a custom patio, or adding a beautiful walkway—our system is built to last.
Explore our hardscape services
Schedule your consultation today
Why Homeowners Trust Earthworks
Choosing the right contractor makes all the difference. We don’t cut corners with outdated base systems. Our crews use industry-best practices backed by the strongest warranties in the area, paired with top-tier products like County Materials.
And unlike concrete and asphalt, your paver installation will be:
Custom-designed to suit your home
Built for drainage and longevity
Flexible, beautiful, and future-proof
Don’t Let Your Project Sink—Build on a Solid Foundation
If you’re planning a new outdoor space in Wisconsin or Minnesota, do it right the first time. Pavers built on open-graded bases are the only system designed to thrive through Midwest winters.
Call today to learn more or get a free estimate. Let us help you redefine your driveway, patio, or walkway with a stronger, smarter solution.
