Concrete vs Pavers

What Is the Structural Difference Between Concrete and Pavers?

Poured concrete and concrete pavers share the same raw material but function as completely different structural systems. Understanding each system explains why the costs, failure modes, and repair strategies differ so sharply.

How does a poured concrete slab work?

A poured concrete slab is a monolithic unit: one continuous panel of concrete that distributes load across its full surface area. A residential driveway slab is typically 4 inches thick for passenger vehicles and 5 to 6 inches thick where trucks or RVs are expected. The mix is placed at 3,000 to 4,000 PSI compressive strength. Control joints are cut every 8 to 12 feet within 12 hours of the pour to guide where the slab cracks as it cures and moves seasonally. Without control joints, concrete cracks wherever internal stress concentrates, usually in the middle of a panel, which is visible and structurally uncontrolled. The slab sits on a compacted subbase, typically 4 inches of crushed limestone or gravel, over native soil that has been graded and compacted.

How does a paver system work?

A paver system is a flexible interlocking structure. Individual units, typically 3.875 by 7.75 inches in plan and 2.375 inches thick for driveway-rated pavers, are laid in a pattern over 1 inch of coarse bedding sand, which itself sits on 4 to 6 inches of compacted aggregate base. Polymeric sand is swept into the joints and compacted. Edge restraints, either plastic spikes or concrete curb, hold the perimeter so the field cannot migrate outward. Because no unit is bonded to its neighbor, the system accommodates minor ground movement without cracking. A settled or heaved section can be lifted, the base releveled, and the pavers reset. The surface looks original after repair. The same repair on a poured slab requires saw-cutting, breaking out, and pouring a patch that will always show a cold joint.

What Do Concrete and Pavers Actually Cost?

Four factors drive the cost of each system: materials, base preparation, labor intensity, and long-term maintenance. Both systems require the same quality subbase to perform, so base cost is roughly equal. The difference is in materials and installation time.

What does poured concrete cost per square foot?

Poured concrete for a residential driveway or patio runs $8 to $14 per square foot installed in 2026, including subbase, forming, reinforcement, pour, and finish. A plain broom finish sits at the low end. An exposed aggregate or brushed slate finish adds $2 to $4 per square foot. Stamped concrete with color and pattern adds $4 to $8 per square foot over a plain slab. For a 600 square foot driveway, a plain slab runs $4,800 to $8,400, and a stamped surface runs $7,200 to $13,200. Demolition of an existing slab adds $1.50 to $3.00 per square foot to any of those figures.

What do pavers cost per square foot?

A concrete paver driveway runs $15 to $25 per square foot installed in 2026, including compacted base, bedding sand, pavers, polymeric joint sand, and edge restraints. The same 600 square foot driveway costs $9,000 to $15,000. Natural stone pavers, including travertine or bluestone, push the top of the range to $30 to $40 per square foot. The material cost alone for driveway-rated concrete pavers runs $3 to $6 per square foot before any labor or base work.

How do long-term costs compare?

A poured concrete driveway, properly installed on a stable subbase, lasts 25 to 35 years with sealing every 3 to 5 years. Sealing costs $0.15 to $0.30 per square foot in product. Crack repair, when needed, costs $3 to $8 per linear foot for routing and filling. A paver system on a stable subbase lasts 25 to 30 years. Individual paver replacement costs $10 to $20 per unit in labor and materials. Resanding the joints every 5 to 7 years costs $0.50 to $1.00 per square foot. Neither system has a meaningful long-term cost advantage on stable ground. On unstable ground, pavers win because a poured slab on failing subgrade requires full removal and replacement, while a paver system can be lifted, the base regraded, and the pavers relaid.

Which System Handles Ground Movement Better?

Ground movement, caused by freeze-thaw cycles, soil settlement, tree roots, or subsurface water, is the primary cause of failure in both systems. The two systems fail differently, and the repair cost difference is significant.

How does ground movement damage a concrete slab?

A concrete slab is rigid. When the subgrade beneath one section settles 1 inch relative to an adjacent section, the slab either cracks across the panel or tilts as a unit. A cracked slab can be routed and sealed if the crack is narrow, under 0.25 inches, but a crack wider than 0.25 inches or with vertical displacement typically means removing and replacing the affected panel. That repair creates a cold joint between old and new concrete, which is always visible and is the next location of future movement. A tilted slab panel can be mudjacked, where a grout slurry is pumped beneath the slab to re-level it, at $3 to $8 per square foot, but mudjacking does not repair the crack, only the grade.

How does ground movement affect a paver system?

A paver system distributes movement across individual joints rather than concentrating stress in a single crack. A section that settles can be lifted by removing the pavers in that zone, regrading and recompacting the base, and resetting the same pavers. The repair is invisible if the original pavers are undamaged. The labor cost for a 20 square foot reset runs $150 to $400 depending on depth of base work needed. On sites with active tree roots or known soft subgrade, the lifetime repair cost for a paver system is reliably lower than repeated concrete patch and replacement work.

What Are the Common Mistakes in Each System?

Most failures in both concrete and paver work trace to base preparation errors, not surface material failures. The surface is only as good as what it sits on.

What goes wrong with poured concrete?

Three installation errors cause most concrete driveway failures. First, inadequate base: a 4-inch slab over 2 inches of base instead of 4 to 6 inches will crack under vehicle loads within 3 to 5 years. Second, missing or incorrectly spaced control joints: joints cut more than 12 feet apart allow uncontrolled cracking between them. Third, adding excess water to the mix on site: adding water beyond the design water-cement ratio raises slump for easier finishing but drops compressive strength, sometimes from 4,000 PSI to under 2,500 PSI. A weaker mix spalls at the surface and cracks earlier under load and freeze-thaw cycling.

What goes wrong with paver installations?

Paver failures also come from the base. A bedding sand layer thicker than 1 inch compresses unevenly under load and causes the surface to ripple. Edge restraints installed without proper staking, typically spikes every 12 inches into compacted base, allow the perimeter to creep outward, which widens joints and causes interior units to rock. Using regular mason sand instead of polymeric joint sand allows water infiltration that erodes the bedding layer over time, accelerating settlement. Each of these mistakes creates a surface that moves underfoot and drains poorly.

When Does the Ground Condition Change the Answer?

In Greater New Orleans and across the south Louisiana coast, the subgrade condition shifts the calculation in a specific direction. This is not a concern that applies equally everywhere.

South of Lake Pontchartrain, the native soil is soft alluvial clay and organic silt over a high water table. Clay expands when wet and contracts when dry, producing seasonal ground movement of 0.5 to 1.5 inches across a typical residential lot. A poured concrete slab on that soil, without a deep compacted base of 6 to 8 inches, will crack and settle within 5 to 10 years. A paver system on the same soil, on an adequate base with proper drainage slope of 1 inch per 8 feet, handles the seasonal movement without cracking because individual units adjust. For any surface on soft south Louisiana subgrade, the base specification matters more than the surface material, and a paver system offers a repair path that poured concrete does not. On the north shore, where sandy soils drain freely, both systems perform reliably on a standard 4-inch base, and the choice becomes straightforward cost and aesthetics.

Is This a DIY Job or a Contractor Job?

Pavers and concrete differ significantly in DIY feasibility, and the honest answer is that the two systems are not equally accessible to a homeowner with basic tools.

A concrete pour is not a DIY project for slabs over 100 square feet. Ready-mix concrete is ordered by the cubic yard, delivered in a truck, and must be placed, screeded, floated, jointed, and finished within 1 to 2 hours before the mix stiffens. A crew of 3 people with professional finishing tools can manage a 400 square foot slab in that window. One person cannot. An incorrectly finished slab, left rough or sealed before bleed water escapes, spalls within one winter. The rental equipment alone, screed boards, bull float, groover, and edger, is manageable, but the timing pressure makes concrete pours risky for first-time installers.

A small paver patio, 100 to 200 square feet on stable, flat ground, is within reach for a homeowner who can compact a base correctly and rent a plate compactor. The work is slow but forgiving: pavers can be lifted and re-laid if a unit is off level. The base compaction is still the hardest part to get right, and getting it wrong means the surface ripples within a season. For driveways over 200 square feet, or any site with drainage complexity, a contractor installation protects the material investment.

How Do You Decide Between Concrete and Pavers for Your Project?

The decision comes down to four variables: budget, soil stability, repair tolerance, and finish preference.

Choose poured concrete when the budget is fixed, the subgrade is stable and well-drained, and a uniform finish is acceptable. A 4-inch slab at 3,500 PSI on 4 inches of compacted base serves most residential driveways and patios for 25 to 30 years with sealing every 3 to 5 years.

Choose pavers when the subgrade is soft or subject to movement, when the finished appearance matters enough to justify the 40 to 80 percent cost premium, or when the ability to repair a section invisibly has long-term value. On active clay soils or around large trees, the paver repair path is worth the upfront cost difference.

If subgrade conditions on a specific site are uncertain, a contractor or soils consultant can probe the native soil and give a compaction report before any surface decision is made. Building either system on undiagnosed soft fill is the single most expensive mistake in residential flatwork.

New Orleans Concrete Contractors assesses subgrade conditions as part of every estimate for the Greater New Orleans area. If you are comparing bids for a driveway or patio and want a straight evaluation of what the ground beneath your project actually requires, contact the team for a site visit and written assessment.