Decomposed granite is the best value surface in San Diego landscaping — around $8–$16 per square foot installed — and the most commonly botched.
The four details that matter
Everything else is preference.
- Depth: 3 inches of DG over 2 inches of compacted base for walkable paths
- Stabilizer: a resin or organic stabilizer mixed in, not sprayed on top
- Edging: steel, masonry or concrete band — DG without containment migrates
- Compaction: wet, roll and compact in lifts, never dump-and-rake
Where DG shines and where it doesn't
It is excellent for garden paths, side yards, dining pads under trees, dog runs and decomposed-granite courtyards in Mediterranean and coastal cottage designs.
It is poor on slopes over about 8%, in heavy-runoff channels, directly against a pool, or at doorways where it tracks indoors. On slopes, break the run with stone or timber risers and switch to a bound surface where water concentrates.
Maintenance you should expect
Even a good DG path needs a light top-dress every 3–5 years and occasional re-compaction after heavy rain. That is normal, cheap and quick — nothing like resetting a failed paver field.
Frequently asked
- Is DG ADA-accessible?
- Stabilized DG can meet firm-and-stable requirements when installed and maintained correctly, but poured surfaces are safer for strict compliance.
- Does it get muddy?
- Stabilized and properly graded DG sheds water. Unstabilized DG in a low spot will absolutely puddle.
- What color options exist?
- Locally common tones include gold, California gold, sunset red and gray granite — check the sample dry and wet.