Decomposed Granite (1/2" minus)

Decomposed Granite (1/2" Minus): Composition, Characteristics, and Practical Uses

Decomposed Granite (1/2" minus), also known as 1/2" crushed granite with fines, is a natural aggregate created by mechanically breaking down granite rock. The resulting material contains gravel-sized particles up to 1/2 inch in diameter, combined with fine particles such as silt and dust. This mix of angular particles ensures strong interlocking for effective compaction, making it suitable for a variety of landscaping and light construction applications. The color of decomposed granite varies, typically appearing in shades of reddish, tan, brown, or gray, depending on the source quarry. The product is generally non-staining, but color transfer may occur when wet. It is not chemically stabilized unless specifically labeled as such.

When compacted, decomposed granite forms a firm, permeable surface. This allows water to pass through, reducing runoff compared to non-permeable materials like concrete or asphalt. The fines in the mix fill voids between larger particles, further improving compaction while slightly reducing drainage compared to clean gravel. Decomposed granite is typically delivered damp to minimize dust, but it can become dusty in dry conditions. The surface may harden when wet and compacted, and the presence of clay or silt fractions can influence this behavior. It is sold by weight (ton) or by volume (cubic yard), and is generally free of organic debris and large rocks.

Key Features of Decomposed Granite (1/2" Minus)

• Natural granite aggregate with maximum particle size of 1/2 inch
• Contains a blend of gravel and fines for superior compaction
• Permeable when compacted, allowing water infiltration
• Angular, interlocking particles reduce shifting and displacement
• Available in various natural colors
• Not a structural fill or certified for use as concrete aggregate
• Not stabilized unless specified; stabilization improves erosion resistance

Typical Applications and Limitations

• Pathways, walkways, and garden trails
• Light-use driveways and patio bases
• Landscaping ground cover and xeriscape projects
• Base for flagstone or pavers
• Erosion control in light-duty settings
• Dog runs, play areas, and tree rings

Decomposed granite is not recommended for high-traffic or heavy vehicle driveways unless stabilized, nor for steep slopes, structural bases for buildings, or as a drainage aggregate. It is not a substitute for concrete or asphalt in load-bearing applications and is unsuitable for areas requiring a dust-free surface unless a binder is added.

Installation and Use: Practical Guidelines

For best results, prepare a stable subgrade and consider using geotextile fabric to prevent mixing with subsoil and to enhance drainage. Apply decomposed granite in layers no thicker than 3 inches, compacting each layer thoroughly with a plate compactor or roller. Edging materials such as metal, plastic, or stone pavers help contain the aggregate and minimize loss from wind or water. For areas prone to water accumulation, slope the surface away from structures and consider installing additional drainage solutions. Maintenance may involve periodic replenishment or leveling, especially in high-use or high-rainfall locations.

Comparison Table: Decomposed Granite vs. Other Materials

Pricing and Delivery Information

Decomposed granite (1/2" minus) is available for delivery across the United States. Pricing varies by location, reflecting local sourcing, transportation, and logistics. All prices include delivery, with no hidden charges. To check the specific price for your area, enter your ZIP code on our website or add the product to your shopping cart. Below are a few sample prices from different regions:

These prices are examples and may change based on your exact location, order size, and current market conditions. Delivery costs are included in the price shown at checkout.

Ordering, Delivery, and Important Considerations

Order decomposed granite directly through our website. All listed prices include delivery, and you can select your preferred delivery date and time during checkout. Road access to the delivery point must be at least 12 feet wide and suitable for heavy trucks. If these conditions are not met, the driver will unload the material as close as possible, and full haul costs may apply for missed deliveries. We do not spread the material; delivery is for supply only. If you are not present at delivery, you accept responsibility for the unattended material. All deliveries are subject to US law and local practices.

Allow for up to 5% variation in size and fines. Moisture content is variable, and the product is usually delivered damp. Decomposed granite is not intended for use as a structural fill, heavy-duty driveway surface, or drainage aggregate. For areas requiring dust control or heavy vehicle use, consider stabilized versions or alternative materials.

Summary Table: Key Specifications

Ordering from Gravelshop

Gravelshop supplies decomposed granite (1/2" minus) in bulk quantities for residential and commercial projects. All prices include delivery, and you can order online with a few simple steps: select your product, enter your ZIP code, and proceed to checkout. Our deliveries are handled by experienced haulers, and you will receive a confirmation email with your order and delivery details. For questions or special requests, contact our customer support team by phone, email, or SMS. We operate in 31 US states and source materials from local pits and quarries to ensure timely and cost-effective delivery.

Before ordering, review your site's access and unloading conditions. Use our material calculator to estimate the quantity required for your project. Please note that we do not provide spreading or installation services. Cancellations after purchase may incur a handling fee. Material is delivered as bulk loose aggregate; spreading or further installation is the responsibility of the buyer.