#8 Gravel vs Fill Dirt

#8 Gravel

Small crushed stone approximately 3/8 to 1/2 inch in size. Good for walkways and as a top dressing for driveways. #8 gravel bridges the gap between coarse aggregates and fine pea gravel, offering a balance of comfort and stability.

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.

#8 Gravel

• ✓ Walkways
• ✓ Patios
• ✓ Between pavers
• ✓ Asphalt mix
• ✓ Top dressing
• ✓ Drainage backfill

Fill Dirt

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

#8 Gravel

• + Smaller size is more comfortable to walk on
• + Compacts better than larger stone
• + Good for filling gaps between pavers
• + Excellent drainage
• + Smooth driveway top-dressing

• − Can migrate without edging
• − Not as stable as larger crushed stone
• − May be tracked by shoes
• − Less commonly stocked than #57
• − Dusty when dry

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

#8 Gravel

#8 gravel consists of angular crushed stone pieces from 3/8" to 1/2" in diameter. Like other crushed stone, color varies by source quarry — gray, blue-gray, tan, and brown are most common.

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.