Fill Dirt vs Recycled Asphalt

Fill Dirt

Subsoil material free of organic matter, used for grading, filling, and raising elevation. Fill dirt is a lower-grade soil that lacks the nutrients of topsoil, making it ideal for structural and non-growing applications where settling must be minimized.

Recycled Asphalt

Recycled asphalt is made from reclaimed asphalt pavement that has been crushed and screened. When compacted, it hardens over time as residual asphalt binder reactivates, creating a durable and cost-effective driving surface.

Fill Dirt

• ✓ Grading
• ✓ Filling depressions
• ✓ Raising elevation
• ✓ Backfill
• ✓ Construction site prep
• ✓ Under slabs

Recycled Asphalt

• ✓ Driveways
• ✓ Parking areas
• ✓ Rural roads
• ✓ Access roads

Fill Dirt

• + Very affordable — often cheapest material available
• + Compacts firmly for structural support
• + Does not decompose or settle like organic soil
• + Widely available from construction sites
• + Ideal base under gravel or concrete

• − Not suitable for growing plants
• − Must be free of debris and contaminants
• − May contain clay that drains poorly
• − Needs compaction in layers for stability
• − Quality varies widely between sources

Recycled Asphalt

• + Very affordable
• + Compacts into a hard surface
• + Less dust than gravel
• + Reuses existing materials

• − Can soften in extreme heat
• − Dark color absorbs heat
• − Limited availability in some regions

Fill Dirt

Fine to coarse soil particles, free of organic matter like roots, grass, or leaves. Color ranges from tan to reddish-brown depending on local geology. "Clean fill" means free of debris, rocks larger than 3", and contaminants.

Recycled Asphalt

Crushed asphalt pieces typically under 1 inch. Black or dark gray in color.