These are often available in different sizes, rock delivery ranging from fine particles to larger stones. Gravel, for instance, might come in sizes like pea gravel (small, rounded stones), crushed stone (various sizes from fine particles to larger pieces), and more.

For landscaping or decorative purposes, larger boulders of different grades are often available. Boulders can range from small, manageable sizes to substantial pieces suitable for focal points in a garden or landscape.

These rocks are naturally rounded by water erosion and are available in various sizes, from small pebbles to larger stones. River rocks are popular for landscaping due to their smooth appearance.

While not exactly 'rocks' in their natural form, flagstones are flat, thin stones used for pathways, patios, or stepping stones. They're available in different thicknesses and shapes.

Larger, irregularly shaped rocks used for erosion control, embankment stability, or shoreline protection. They come in various sizes depending on the intended purpose and the severity of erosion.

Often used for aesthetic purposes in gardens or driveways, decorative gravel comes in different colors, shapes, and sizes, allowing for creative landscaping designs.

These are stones used in construction, typically graded by size for specific uses in concrete, road construction, or drainage systems. They range from fine particles to larger stones.

Factors Determining Sizes and Grades:

Project Requirements: Different projects require specific rock sizes and grades. For instance, a gravel driveway might need larger crushed stones, while a garden pathway might benefit from smaller gravel or pebbles.

Landscapers or homeowners might have preferences for certain rock sizes and shapes to achieve a particular aesthetic appeal.

Functional Use: Rocks are chosen based on their functional purpose, whether it's for drainage, stability, construction, or landscaping.

Providers of rock delivery typically have a range of sizes and grades available. Customers can specify their needs based on the project requirements, and the delivery service will often accommodate these requests. Ordering processes usually include selecting the desired size or grade of rocks needed and specifying the quantity required.

In conclusion, the availability of various sizes and grades of rocks for delivery allows customers to choose the most suitable options for their specific projects, whether it's landscaping, construction, or decorative purposes.