Basic
$1.78 – $3.56 per sq ft
Blue-gray slate chips about 3/4-1-1/2 in. spread 2 in. deep over woven landscape fabric pinned with staples

Loose slate landscape chips spread over prepared ground with weed-barrier fabric (~2 in. depth), material and labor per sq ft of coverage.
Slate Chips in Washington, District of Columbia typically costs $2.09 to $4.19 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Washington are 5.0% higher than the national average for slate chips.
National average: $2 – $4 per sq ft
$1.78 – $3.56 per sq ft
Blue-gray slate chips about 3/4-1-1/2 in. spread 2 in. deep over woven landscape fabric pinned with staples
$2.09 – $4.19 per sq ft
Graded blue-gray slate chips 2 in. deep over heavier nonwoven fabric, staples at closer spacing, raked even
$2.62 – $5.23 per sq ft
Larger flat slate chips in blended plum and green tones, 2 in. deep over heavy-duty fabric, hand-raked even edges
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.95 – $1.89 | sq ft |
| Labor | labor | $0.73 – $1.46 | sq ft |
| Supplies & Other | supplies | $0.25 – $0.50 | sq ft |
| Equipment & Disposal | equipment | $0.17 – $0.34 | sq ft |
Connect with local slate chips contractors in Washington for personalized quotes based on your specific project.