Washed vs. Screened Decomposed Granite: Understanding the Key Differences
Decomposed granite (DG) is a versatile and cost-effective material commonly used for driveways, pathways, patios, and landscaping projects. However, not all DG is the same. Two of the most popular types are washed decomposed granite and screened decomposed granite. Understanding the differences between these types will help you choose the best material for your project.
What is Washed Decomposed Granite?
Washed DG undergoes a cleaning process that removes fine particles and dust, leaving behind clean, uniform 1/4-inch granite granules. This process enhances its drainage properties and provides a smoother finish.
Key Features of Washed DG:
- Dust-Free & Cleaner Finish – Ideal for decorative landscaping.
- Excellent Drainage – Perfect for areas with heavy rain or runoff.
- Less Compaction – Remains loose and permeable.
Best Uses for Washed DG:
- French drains and drainage systems.
- Loose-fill pathways with minimal dust.
- Decorative landscaping in xeriscaping projects.
- Top dressing around plants for aesthetic appeal.
Pro Tip: Washed DG is great for Arizona’s monsoon season, as it prevents excessive dust buildup and improves water filtration.
What is Screened Decomposed Granite?
Screened DG is processed to remove large pieces while retaining smaller fines and dust, allowing for better compaction and a more stable surface. Unlike washed DG, this type binds together, creating a firmer, more compact surface ideal for driveways and high-traffic areas.
Key Features of Screened DG:
- Compacts Well – Great for creating solid, stable surfaces.
- Better for Driveways & Walkways – Reduces shifting and erosion.
- Provides a Natural Look – Blends seamlessly into landscapes.
Best Uses for Screened DG:
- Driveways and high-traffic walkways.
- Patios and seating areas.
- Base material for pavers or flagstone.
- Erosion control on slopes and hillsides.
Pro Tip: If you’re looking for the best decomposed granite for driveways, screened DG is the best choice due to its compactability and durability.
Washed vs. Screened DG – Which One Should You Choose?
- Need a dust-free, permeable option with excellent drainage? → Go with Washed DG.
- Need a firm, compact surface for driveways or pathways? → Screened DG is your best bet.
Both types of DG offer unique benefits, but choosing the right one depends on your specific project needs.
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