How to Install Decomposed Granite

Figure the size and shape of the intended surface with a tape measure and a basic sketch of your yard. Lay out the path with ropes or landscaping paint. Use a spade or flat shovel to cut straight down along the edges of the site. Remove 7 inches deep of grass and dirt from the area with a shovel.

Pack loose dirt at the bottom of the expanse until it is hard and flat. Place the flat end of a tamper over each section and pound it down several times. Cover the bottom with weed barrier fabric. Drive spikes through the corners to hold it down.

Fill the excavation with 5 inches of 3/4-inch aggregate. Rake the aggregate evenly over the site and tamp it to compact the rocks into a solid base.

Pour 3 to 4 inches of decomposed granite over the aggregate. Tamp the granite until the material feels firm under your feet. Add a 1-inch layer of decomposed granite along the center of the surface. Rake and tamp the material to form a slight outward slope to aid drainage.

Secure metal or plastic edge restraints around the outside of the site with a hammer and 9-inch nail spikes. Edging is optional, but adding it will add a polished look and reduce maintenance by containing the loose material. Alternatives to basic edge restraints include pavers, timbers and natural stone.