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Citadel Stone’s Graphite Grey Setts feature the perfect fusion of natural surface character and modern precision—showcasing naturally split tops with rugged, textured appeal while precision-cut sides ensure flawless tight-joint installation. These versatile 4″x4″ blocks exhibit sophisticated charcoal grey to mid-grey coloration that deepens to dramatic black when wet, creating dynamic paving that evolves with weather conditions. Perfect for contemporary driveways, modern courtyards, commercial plazas, and architectural projects demanding both authentic natural stone texture and professional installation precision.
The defining characteristic of Graphite Grey Setts lies in their hybrid finish—combining best attributes of natural stone character with modern dimensional accuracy:
Natural Split Top Surface: The exposed top face retains the stone’s authentic fractured texture created through controlled splitting along natural cleavage planes. This process reveals the stone’s internal crystalline structure, creating rugged, organic surfaces with natural relief, textural variation, and authentic geological character. The split surface provides excellent slip resistance while showcasing genuine stone character impossible to achieve with smooth, polished alternatives.
Precision-Cut Sides: All four vertical sides receive diamond-blade saw cutting, producing perfectly straight edges with tight dimensional tolerances. This precision engineering enables professional installations with minimal joint spacing—creating clean, contemporary lines and seamless geometric patterns. The machine-cut sides ensure blocks align perfectly, stack precisely, and install efficiently.
This combination delivers unique advantages: the natural split top provides authentic texture and visual interest while precision-cut sides enable the tight, professional installations demanded by contemporary design and commercial applications.
Graphite Grey Setts showcase a refined neutral palette perfectly suited to modern architectural aesthetics:
Dry State Appearance: In dry conditions, blocks display elegant charcoal grey to medium grey tones with subtle natural variation. The sophisticated grey palette provides neutral foundation complementing diverse design elements—from contemporary steel and glass to traditional brick and natural wood.
Wet State Transformation: Moisture dramatically darkens the stone, transforming grey tones to deep, rich black. This dynamic color shift creates visual interest as weather conditions change—morning dew, rain showers, and wet cleaning reveal entirely different aesthetic character.
Natural Variation: Each block exhibits unique tonal shifts within the grey spectrum—some lean toward warmer charcoal, others toward cooler slate grey—creating organic diversity within cohesive overall palette. This natural variation adds depth preventing monotonous uniformity.
Contemporary Neutrality: The grey to black color range aligns perfectly with modern design trends emphasizing neutral palettes, natural materials, and sophisticated restraint. The stone provides elegant foundation without overwhelming architectural or landscape elements.
Rugged Split-Top Texture: The naturally fractured top surface provides authentic stone character with pronounced three-dimensional relief. Natural cleavage creates irregular planes, textural variations, and organic patterns ensuring no two blocks appear identical. This rugged texture delivers superior slip resistance for pedestrian and vehicular traffic.
Precision Engineering: Diamond-blade cut sides produce straight edges with tolerances enabling joints as tight as 1/8″–1/4″. This precision facilitates professional installations impossible with irregular natural stone while maintaining authentic split-top character.
Optimal 4″x4″ Dimension: The compact square format provides remarkable versatility—substantial enough for visual impact yet manageable for intricate pattern work. The 4-inch dimension coordinates perfectly with standard American construction measurements and modular design systems.
Exceptional Slip Resistance: The natural split texture creates inherently slip-resistant surfaces ideal for driveways, walkways, and areas subject to rain or moisture. The rugged top maintains traction even when wet—critical for safety-conscious applications.
Dynamic Weather Response: The dramatic color transformation between dry and wet states creates living surfaces that change character with weather conditions, adding visual interest and connection to natural cycles.
Durable Natural Stone: Quality grey stone provides excellent compressive strength, weather resistance, and proven longevity for demanding outdoor applications—outperforming concrete, brick, and manufactured alternatives.
Standard Dimensions:
Technical Specifications:
Contemporary Driveways: Create sophisticated vehicle entries with grey stone blocks providing modern elegance and reliable traction. The precision-cut sides enable tight joints creating clean, professional appearance while split tops add textural interest and slip resistance.
Modern Courtyards & Patios: Establish sleek outdoor living spaces with grey stone providing neutral contemporary foundation. The rugged texture adds organic character softening modern minimalism while precision installation maintains architectural clarity.
Commercial Plazas: Transform public spaces with durable grey stone handling intensive foot traffic while maintaining upscale appearance. The tight-joint capability creates professional installations suitable for corporate campuses, retail centers, and civic spaces.
Architectural Walkways: Design distinctive pedestrian routes with textured grey stone providing secure footing and visual interest. The precision edges enable geometric pattern precision while natural tops prevent industrial sterility.
Mixed-Material Designs: Incorporate grey setts as accent elements within larger paving schemes—creating borders, geometric patterns, or textural contrast interrupting smooth surfaces. The neutral grey coordinates with virtually any material palette.
Parking Areas: Establish upscale parking courts with natural stone elevating utilitarian spaces. The durable material withstands vehicular traffic while split-top texture provides tire traction and sophisticated aesthetics.
Tight-Joint Capability: Precision-cut sides enable joints as narrow as 1/8″—creating contemporary seamless appearance impossible with irregular stone. Tight joints reduce weed growth, simplify maintenance, and enhance modern aesthetic.
Pattern Precision: Accurate dimensions facilitate geometric patterns—simple grids, running bond, herringbone, or custom designs—with professional alignment and consistent spacing.
Efficient Installation: Uniform sizing and straight edges accelerate installation compared to irregular natural stone, reducing labor costs while maintaining authentic texture.
Versatile Methods: Suitable for sand-set installations (residential pathways), mortar-set applications (vehicular areas), or pedestal systems (rooftop decks).
Routine Care: Sweep regularly; occasional pressure washing refreshes appearance. The split texture naturally conceals minor soiling maintaining attractive appearance between cleanings.
Long-Term Durability: Properly installed grey stone setts deliver 50+ years of reliable service, maintaining structural integrity and surface character through decades of exposure and use.
Weather Performance: Excellent freeze-thaw resistance, UV stability, and moisture tolerance ensure reliable performance across diverse American climates.
Unique Hybrid Finish: Natural split tops with precision-cut sides—best of both worlds impossible with fully natural or fully manufactured alternatives.
Premium Grey Stone: Careful sourcing ensuring attractive coloration, adequate hardness, and weather resistance.
Quality Control: Rigorous inspection verifying split-top character and side-cut precision.
Expert Support: Comprehensive installation guidance for tight-joint applications.
Contact Citadel Stone:
Request consultation and samples for your contemporary stone project.
Citadel Stone – Graphite Grey Setts Combining Natural Character with Modern Precision
Specifications subject to change. Contact for current availability.
Elevate your next project with our Graphite Grey Basalt Setts, a premium 4″x4″ stone solution designed for high-performance durability. These blocks feature a naturally split top, providing a rugged, slip-resistant texture that showcases the authentic, volcanic character of the stone. While the surface remains raw and organic, the precision-cut sides ensure clean installation lines and flawless, tight joints for a modern, sophisticated aesthetic.
The sophisticated charcoal grey palette offers a dynamic visual experience, deepening to a striking, dramatic black when wet. Built to endure, these high-density basalt blocks are the ideal choice for contemporary driveways, commercial plazas, and architectural projects that require both professional precision and natural, heavy-duty allure.
Material: High-density Natural Basalt.
Finish: Rugged Split-Top for maximum grip with Sawn Edges for precision.
Color Profile: Mid-grey to charcoal; turns deep black when wet.
Ideal For: Contemporary 4″x4″ paving, luxury borders, and high-traffic pathways.
At Citadel Stone, we manufacture a comprehensive range of traditional and contemporary dimensions. While the list below covers our standard production line, our factory-direct model allows us to manufacture any custom size and thickness to meet your project’s specific architectural requirements.
Perfect for classic fan patterns, modern grids, and decorative borders.
3″ × 3″ (8 × 8 cm): Fine-grain detailing for intricate mosaics.
4″ × 4″ (10 × 10 cm): The Classic Cube Shape; the industry standard for driveways.
5″ × 5″ (13 × 13 cm): A bold, mid-sized square for residential patios.
6″ × 6″ (15 × 15 cm): A popular medium square for clean, modern layouts.
8″ × 8″ (20 × 20 cm): Large-format squares for expansive commercial plazas.
9″ × 9″ (23 × 23 cm): Heavy-duty squares designed for maximum visual impact.
Ideal for “Running Bond” patterns that elongate paths and driveways.
4″ × 5″ (10 × 13 cm): Compact rectangles for tight borders.
4″ × 6″ (10 × 15 cm): Versatile sizing for garden paths and transitions.
4″ × 8″ (10 × 20 cm): The Standard Rectangular Sett; perfect for traditional paving.
6″ × 9″ (15 × 23 cm): Authentic Traditional European Style for heritage-look projects.
5″ × 10″ (13 × 25 cm): Sleek, elongated dimensions for contemporary designs.
6″ × 12″ (15 × 30 cm): Large architectural blocks for high-end landscaping.
Because we are a Direct Source, we can adjust the thickness of any size above to suit your specific load-bearing needs.
| Traffic Type | Recommended Thickness | Benefit |
| Pedestrian | 1.5″ – 2″ | Cost-effective for walkways and patios. |
| Residential Driveway | 2″ – 3″ | Engineered to support SUVs and passenger vehicles. |
| Commercial / Public | 4″+ | Maximum durability for plazas and high-traffic streets. |
