"Beige slate cobblestone" is a category, not a uniform product. To ensure success, you must specify the correct grade, size, and thickness for your application. Here is our technical breakdown.
Standard Grading Categories:
Premium / Pattern Grade: Carefully selected for consistent thickness (±5mm) and uniform sizing. Essential for formal patterns (herringbone, fan) where alignment is key. Slight color variation.
Standard / Landscape Grade: Offers a natural blend of sizes and shapes within a defined range (e.g., 100-150mm). Moderate thickness variation. Ideal for rustic pathways, dry-stack walls, and informal courtyards where an organic look is desired.
Rustic / Field Grade: The most varied in size, shape, and thickness. Delivers maximum authentic, "old-world" character. Best for restoration projects, edging, and highly naturalistic landscapes.
Key Size Classifications:
Settes: Small cubes, typically under 100mm in face dimension. Used for detailed work, borders, and high-precision patterns.
Cobbles: The classic size, ranging from 100mm to 150mm. The workhorse for most paving applications.
Pitchers / Large Cobbles: Over 150mm, often irregularly shaped. Used for bold statements,large-scale paving, and landscape features.
Critical Technical Specs to Request:
Absorption Rate: Should be <0.4% for frost-resistant slate.
Density: >2.6 g/cm³ indicates a durable, dense stone.
Abrasion Resistance: Important for high-traffic areas.
Slip Resistance (Wet): Specify a flamed or riven (split) surface for wet areas; a honed surface will be slippery.
