Permeable pavers for driveways are paving systems that let rainwater pass through the surface into the ground below, instead of shedding it as runoff. For driveways, that means less standing water, less strain on storm drains, and often easier compliance with stormwater regulations. Grass and gravel pavers are among the most effective permeable driveway options, combining load support with full infiltration.

NDS EZ Roll Gravel Pavers, a permeable driveway surface.

What are permeable driveway pavers?

Permeable pavers (also permeable driveway pavers) are surfaces engineered to be porous: water infiltrates through them rather than running off. Traditional asphalt and concrete are impervious, so rain sheets off into drains and waterways, carrying pollutants and overloading systems during storms. Permeable pavers reverse that, letting water filter down through the surface and into a stone base and the soil, recharging groundwater and reducing runoff.

Types of permeable pavers for driveways

• Grass pavers: a reinforcement grid filled with soil and grass; the surface looks like lawn and is fully permeable.
• Gravel pavers: the same grid concept filled with gravel, permeable and stabilized so the gravel does not migrate or rut.
• Both carry vehicle loads via the grid while keeping the surface porous.

NDS EZ Roll Grass Pavers, a permeable, drivable driveway surface.

Why choose permeable pavers for a driveway

• Stormwater compliance: infiltration can help meet local runoff and impervious-surface limits.
• No puddles or sheet runoff: water soaks in where it falls.
• Groundwater recharge: rain returns to the soil instead of the storm drain.
• Cooler surface: grass and gravel do not bake like asphalt.
• Attractive: a green or natural-gravel drive instead of a slab of pavement.

How permeable pavers carry vehicle loads

A common worry is whether a porous surface can be strong. It can: the structural grid transfers vehicle weight to a compacted, free-draining stone base, which both carries the load and stores and infiltrates water. So the same system that makes the driveway permeable also makes it drivable — you are not trading strength for drainage.

Installation: base prep and steps

NDS EZ Roll Grass Pavers are designed to be placed on an engineer-specified compacted base. The base is what carries the vehicle load, so base preparation is the most important part of the job. A typical sequence:

1. Excavate. Remove unsuitable soil and excavate deep enough for the aggregate base plus the paver and soil. Longview's product guidance calls for a 4 to 6 inch aggregate base directly below the pavers; without that base a "cookie cutter" effect occurs as the pavers punch into soft ground.
2. Place the base course. Use a free-draining aggregate (NDS suggests AASHTO #57 stone or a local equivalent), placed over the prepared subgrade in lifts not exceeding 6 inches.
3. Compact each lift. Compact every lift separately to a minimum of 95 percent Modified Proctor density, so the base is firm and uniform before the pavers go down.
4. Optional sandy loam layer. An engineer may add about 2 inches of sandy loam between the paver and the gravel base; if so, place a non-woven geotextile filter fabric between the sandy loam and the base to keep fines from migrating into the stone.
5. Roll out and connect the pavers. Unroll the mat over the prepared base; the top-down locking tabs snap together with no tools, and each 2 by 2 foot section has 72 honeycomb cells.
6. Stake the pavers. Anchor with the supplied stakes (each roll ships with 40 stakes, 12 inch by 3/8 inch galvanized, NDS part GPSTAKE), following the recommended staking pattern. Use edge restraints at borders to prevent creep.
7. Fill with soil and plant. Fill the cells to the top surface with sandy loam or loam soil (sand is not acceptable), leaving a minimum of 1-1/2 inches for grass pavers and soil. Seed, sod, or hydroseed, and plant within 30 days of installing the pavers.
8. Establish before traffic. Keep vehicles off until the grass is sufficiently established to handle traffic.

NDS EZ Roll Gravel Pavers install much like the grass version, but the rolls go down fabric-side-down and the cells are filled with gravel instead of soil and grass. A typical sequence:

1. Prepare and compact the base. Excavate and place a free-draining aggregate base; base course thickness depends on the native soil and the anticipated wheel loads. Compact the base with one to three passes of a 5-ton steel wheel roller or equivalent.
2. Consult a geotechnical engineer for weak soils. For poor subgrades (CBR under 5 percent or R-value under 10), NDS recommends the engineer of record consult a geotechnical engineer about soil modification and compaction.
3. Roll out fabric-side-down. The pavers come with a thermally welded geotextile (Typar) fabric that prevents gravel from migrating downward and is porous for stormwater. Lay one roll first, then pull the edge of the adjacent roll snug against it and connect the lateral snap locks.
4. Leave clearance and stake. Leave a 1 inch minimum clearance between the pavers and fixed objects or structures, and stake per the recommended pattern (stakes are included).
5. Fill with gravel. Fill the cells with gravel to finish the surface; the cells confine the stone so it cannot rut or migrate.

Load and durability specs

For context on why the base matters, the EZ Roll pavers have an unfilled compressive strength in the range of about 53,683 to 57,890 psf and are rated to support H-20 and H-25 vehicle loads, with a life expectancy of 25 years when well maintained. Each paver weighs about 2.31 pounds and is made of HDPE with UV inhibitors. Those load ratings assume a properly prepared and compacted base, which is why the base-prep steps above are not optional.

For complete installation specifications, download the official NDS EZ Roll Grass Pavers Installation Guide (PDF).

Frequently Asked Questions