United States / Build / Decomposed granite (Zone 0 groundcover)

Decomposed granite (Zone 0 groundcover)

This is a material class, not a wall or roof assembly listing.

Inorganic decomposed granite is a noncombustible groundcover commonly specified in the first five feet around a structure. It is a material class, not an OSFM-listed assembly.

Kind: material-class. Page reviewed 2026-08-23. JSON (CC BY 4.0)

View Saved

Can you use it here?

Enter your ZIP to see which local requirement this meets.

Findings that limit this record

Specification notes

Zone 0 rules vary. California’s August 2026 Board of Forestry Zone 0 vote was not yet in force as of this verification.
Wood, bark, and rubber mulch are the materials these pages tell you to replace, not DG itself.

Can I use this here

Local force

The rule and every matching product for the United States

Requirement constraints (1)

Each table compares this product's documented attributes with one published requirement. The comparison does not change from place to place, so it is printed once.

Colorado CWRC immediate-zone hardscape undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of mulch, edging	Not documented	undocumented
Material	Material is one of masonry, mineral, stone	Not documented	undocumented

Sources

Home Hardening — CAL FIRE (official). Accessed 2026-08-23.
Defensible Space — Oregon State Fire Marshal (official). Accessed 2026-08-23.
Wildfire Prepared Home — IBHS (standard-body). Accessed 2026-08-23.

Decomposed granite (Zone 0 groundcover). FireApproved. https://fireapproved.com/materials/decomposed-granite/. Last verified 2026-08-23.