A grass driveway is a driveway surfaced with reinforced grass instead of asphalt or concrete, giving you a green, permeable drive that still supports vehicles. The key is a grass driveway grid, a structural paver system installed under the turf that carries the car's weight and keeps the soil from compacting. The result is a driveway that looks like lawn, drains like soil, and drives like pavement.

What is a grass driveway?

A grass driveway replaces hard paving with a grass surface reinforced from below by a grass driveway grid. Without the grid, repeated tire traffic would compact the soil and kill the grass, leaving ruts and mud. With the grid, the load is carried and spread, the soil stays loose, and the grass survives. You get the parking and driving function of a driveway with the look and drainage of a lawn.

How grass pavers work

A grass paver is a structural grid, usually a web of honeycomb cells, installed over a compacted, free-draining base. The grid carries vehicle and foot loads and transfers that weight down to the base, so the soil inside the cells never gets compacted. That protected soil lets grass roots grow and stay healthy, while rain infiltrates through the surface instead of running off. The result is a surface that looks like lawn but drives like pavement.

The grass driveway grid

The grid is the whole system. NDS offers two:

• EZ Roll Grass Pavers: a flexible honeycomb mat that unrolls fast over a prepared base, great for covering a full driveway quickly.
• Tufftrack: rigid 2 by 2 foot interlocking pavers, 1-1/2 inch thick, for driveways that see heavier or more frequent loads.

Why choose a grass driveway

• Permeable: rain soaks in, reducing runoff and easing stormwater requirements.
• Green and cooler: grass stays cooler and looks better than asphalt or concrete.
• No rutting or mud: the grid prevents the compaction and ruts that plague bare-grass drives.
• Durable: built to carry vehicle loads for the long term.

Grass driveway build, in brief

A grass driveway is built in layers: excavate, install and compact a free-draining road base to the engineer's spec, place the paver grid (unroll the EZ Roll mat or lay the Tufftrack pavers), pin or stake it down, then fill the cells with soil and seed or sod. Once the grass is established, the driveway is ready for traffic. Proper base preparation is what determines how well it carries load over time.

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.

The rigid Tufftrack pavers follow the same base logic, a compacted, free-draining aggregate base placed in lifts and compacted, then a lightly compacted planting base, with the 2 by 2 foot units laid and interlocked over the top and filled with soil and grass. Because Tufftrack is 1-1/2 inch thick and rigid, it suits the heavier or more frequent loads where you want extra stiffness underfoot.

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 around 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.