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An example of permeable paving is a set of cinder blocks or natural stone pavers with room inside for natural materials, such as gravel, sand, or grass. You can also design these pavers with brick or plastic tiles.

In addition to these pavers, permeable pavement can be obtained by using a highly porous material, such as pervious concrete or pervious asphalt.

Professional installers often include a deep layer of crushed gravel under permeable pavers to allow more runoff to soak through into the soil below. Many installations will include multiple layers of gravel, with coarser aggregate at the base and finer aggregate that sits on top of that bottom layer. Above the gravel, you’ll often find coarse sand that helps reduce paver shifting over time. Some permeable paver designs include a water collection system set into the gravel layer to route runoff to a safe area for disposal.

An ideal driveway gradient is between 2% and 5%. Anything lower than 1% or higher than 15% can cause problems for your car or property. A driveway with less than a 1% slope increases your likelihood of flooding and water damage, while a driveway with a 15% grade or higher can be too steep for safe traveling.

The ideal distance between stepping stones depends on your design preference. A general rule is to place them about 24 inches apart from center to center to match an average person's stride. Another common approach is to leave about 6 inches of space between the edges of each stone; this can be adjusted to fit the path's total length without cutting pavers. If you plan to plant between the stones, leave at least 6 to 8 inches of space to give the plants room to grow.