Decomposed Granite or DG is a natural byproduct of the weathering and erosion of solid granite rocks. DG is a combination of small granite pieces (⅜ inch or smaller) and fine granite, which can resemble sand. It is like gravel, but finer and more stable.
DG is an aggregate available in a variety of colors — buff, brown, hues of gold, rose, variations of pink, steel blue, and more. It is a well-known less expensive material for landscapes, sport surfaces, driveways, patios and so much more. Decomposed granite also comes in 3 types — natural or loose DG, stabilized DG and resin-coated DG.
3 Types of Decomposed Granite
The 3 types of decomposed granite offer unique characteristics and give you options on what to choose for your project.
1. Natural Decomposed Granite
Natural or loose decomposed granite is the least expensive type of DG. It is simply granite aggregates without any additives. Natural DG is commonly used in landscapes for mulching, patios, garden paths and play areas or sport surfaces.
Without any additives, loose DG is an excellent non-organic mulch and can be spread around trees and other plants. DG continues to weather over time and provides nutrients to surrounding soil and plants.
Once compacted well, a walkway or patio covered with loose DG will be fairly hard. Natural DG is very permeable and handles water extremely well. Since it’s not exactly a solid surface, natural DG provides excellent drainage to your landscape.
2. Stabilized Decomposed Granite
Stabilized DG costs more than natural DG, but still more affordable than other pavers and aggregate materials. It has stabilizer mixed in with the granite aggregates which serve as a binder.
Once compacted, stabilized decomposed granite will look similar to natural DG, with the top layer appearing loose and organic. However, it is more stable than loose DG and less susceptible to erosion. It is the best type to use for pathways or patios. Stabilized DG also requires less maintenance and can last longer compared to loose DG.
3. Resin-coated Decomposed Granite
Decomposed granite with resin or poly pavement is the most stable and durable type of DG. Natural resin is mixed in with decomposed granite aggregates to create an asphalt-like material. Unlike asphalt, DG with resin has a more natural look.
With its stability and durability, resin-coated DG is the best option for road and construction projects. Driveways or pavements made with resin-coated DG will not wear down or erode.
Decomposed granite is the perfect material to give your landscape a rustic and natural look. Compared to other materials, DG is also relatively affordable. It is a great aggregate for your landscaping, sport surfaces and construction needs. Blessing Gravel offer precision-processed decomposed granite and other aggregate materials for landscaping and other industry needs. Contact us to know more or use our Aggregate Calculator and get a quote.