Tiny Washed Shell (1/2 - 3/8")

Tiny Washed Shell (1/2 - 3/8"): Product Overview

Tiny Washed Shell (1/2 - 3/8"), also known as Washed Shell, Crushed Shell, Shell Gravel, Shell Chips, or Oyster Shell Aggregate, is a natural aggregate composed mainly of crushed oyster or clam shells. The particle size ranges from 3/8 inch to 1/2 inch (approximately 9.5 mm to 12.7 mm). This material is thoroughly washed to remove silt, clay, dust, and organic matter, resulting in a clean, light tan to white aggregate with angular to sub-angular shapes. It is high in calcium carbonate, typically over 90%, and features a neutral to slightly alkaline pH (around 7-8). The bulk density is approximately 80-100 lbs per cubic foot, varying with moisture content. Tiny Washed Shell is naturally occurring, biodegradable, and offers good drainage properties while being resistant to compaction. It is a safe, non-toxic choice for landscaping and aquaculture applications.

Physical Properties and Specifications

• Particle size: 3/8" to 1/2" (approx. 9.5 mm to 12.7 mm)
• Color: Light tan to white
• Shape: Angular to sub-angular
• Calcium carbonate content: Typically >90%
• pH: Neutral to slightly alkaline (7-8)
• Bulk density: 80-100 lbs/ft³ (varies by moisture)
• Meets ASTM D448 #57 size range for coarse aggregate
• Clean, washed, and free of organic debris and contaminants
• Low moisture content after washing and drying

Tiny Washed Shell is not suitable for structural concrete or load-bearing applications. It is intended for landscaping, decorative, and non-structural uses. The shells may fragment under pressure, which helps stabilize the surface but may require periodic replenishment in high-traffic areas.

Common Uses and Applications

Tiny Washed Shell serves a variety of practical purposes. Its most frequent applications include decorative landscaping mulch and ground cover, pathways and walkways, driveway top dressing, and as a base material for pavers and patios. It is also used in aquaculture as a substrate or for oyster reef restoration, as a soil amendment to improve pH and calcium levels, for erosion control in coastal and wetland areas, as animal bedding, and as an alternative to sand in golf course bunkers. In garden beds or potted plants, small shell pieces offer excellent drainage and airflow, helping to prevent soil compaction and improve root health.

Installation and Handling

When installing Tiny Washed Shell, prepare a well-drained, compacted base for best results. Use of a geotextile fabric beneath the shell layer helps prevent migration of underlying soil and maintains surface integrity. Proper grading is needed to support drainage. Over time, shell fragments may break down and compact, which helps create a firm surface but may require periodic top-up, especially in high-traffic areas. The shell's high porosity allows rainwater to percolate through, minimizing standing water and runoff. The product is not suited for structural concrete, heavy-duty vehicle surfaces, or any application where a non-fragmenting aggregate is required.

Care and Limitations

• Not suitable for structural or load-bearing concrete
• May require periodic replenishment in high-traffic areas
• Should not be used where a non-fragmenting surface is required
• Not intended for use as a food additive or in potable water systems

Regional Pricing and Delivery Information

Tiny Washed Shell is available for delivery across the United States. Pricing varies by location due to sourcing and transportation costs. All prices include delivery and sales tax. Delivery is performed by independent trucking companies. Delivery location must be accessible by a truck and meet width and access requirements. If you are not present at delivery, the material will be left at the discretion of the driver. Gravelshop does not spread or install the material. Please allow for up to 5% size variation and fines. Minimum order quantities apply and may vary by region.

Prices for Tiny Washed Shell differ by region, reflecting local sourcing and delivery logistics. Delivery costs are included in the displayed prices, and you can view the total cost for your ZIP code by entering your location on the Gravelshop website. Minimum order quantities and delivery schedules are available during checkout.

Ordering, Delivery, and Terms

Ordering Tiny Washed Shell is available online through Gravelshop. You can select your desired quantity, enter your ZIP code, and see the exact price including delivery and taxes. Payment methods include Visa, Mastercard, American Express, Discover, Diners Club, JCB, Apple Pay, Google Pay, and Cash App Pay. After placing your order, you will receive a confirmation email with order details and delivery information. Delivery is typically scheduled within two business days, with morning or afternoon slots available. For unattended deliveries, the driver will leave the material at the most suitable location. Gravelshop supplies materials only and does not provide spreading or landscaping services. If road or site access is not suitable for heavy trucks, delivery will be made as close as possible to your location. A handling fee applies for cancelled orders after purchase, and a higher fee applies if the truck has already departed.

Gravelshop operates under US law and provides clear, upfront pricing with no hidden fees. Delivery is available in 31 states, and all orders are subject to availability and regional minimums. For questions or support, contact Gravelshop customer care by phone, email, or SMS.

Summary of Key Features

• Composed of natural, washed crushed oyster or clam shells
• Particle size: 3/8" to 1/2" (approx. 9.5 mm to 12.7 mm)
• High calcium carbonate content, neutral to slightly alkaline pH
• Good drainage, resistant to compaction, biodegradable
• Suitable for landscaping, pathways, driveways, aquaculture, and soil amendment
• Not for use in structural concrete or as a food additive
• Available for online ordering with delivery included in price

Tiny Washed Shell (1/2 - 3/8") is a versatile, environmentally friendly aggregate for landscaping and non-structural outdoor projects. Review delivery requirements and site accessibility before ordering. For further details or to calculate your project needs, use the Gravelshop material calculator or contact customer support.