What is decomposed granite?

Decomposed granite, or DG, is weathered granite broken down into small pebbles and fines that compress together when installed. It's a popular groundcover material for Austin patios, pathways, and driveways because it has a natural, rustic appearance that fits well with the local landscape aesthetic.

The material compacts under foot traffic and light vehicle weight, creating a semi-solid walking surface without the cost or permanence of concrete or stone paving. Austin's dry climate keeps DG stable, though it does shift slightly over time and may need raking or top-dressing to maintain an even finish.

A key advantage is permeability. DG allows water to drain through rather than pooling, making it useful for managing stormwater runoff on patios and pathways. This drainage quality appeals to homeowners and landscapers looking for alternatives to hard-surface paving in residential gardens.

DG comes in several colors depending on the granite source, ranging from tan and rust tones to deeper browns. Installation involves grading the subbase, compacting the material, and sometimes adding edging to contain the aggregate. Once settled, the surface requires occasional maintenance to keep it from scattering at the edges. Hardscape and masonry contractors in Austin commonly work with DG on smaller residential projects and as a complement to stone or concrete installations.