MATERIAL DATA SHEET

Granite benchtop, various thicknesses & finishes (20mm, 30mm, 40mm)

Igneous
mineral › Stone › Igneous
granitenatural-stoneigneousbenchtopkitchenpremiumheat-resistantdurableaustralian-standardsbushfire-compliant
ATLAS CODE
MIN-STN-IGN-003
Granite benchtop, various thicknesses & finishes (20mm, 30mm, 40mm)
Category mineral
Material Family Stone
Density
2700 kg/m³
Carbon (A1-A5)
290 kgCO2e/m²
Lifespan
40-100+ years
Description

Granite is a coarse-grained igneous rock composed primarily of quartz (20-60%), feldspar (65%), and mica minerals, formed through the slow crystallisation of magma beneath Earth's surface. As a benchtop material, granite offers superior hardness (6-7 Mohs scale), excellent heat resistance (up to 350°C), and natural resistance to scratching and staining when properly sealed. Available in hundreds of colour variations from light whites and greys to deep blacks and exotic patterns, each slab features unique natural veining and crystalline structures. Standard thicknesses of 20mm, 30mm, and 40mm accommodate various design requirements and structural considerations.

Primary Sectors
[Hospitality][Commercial][Healthcare]
Typical Uses
  • Kitchen benchtops and island surfaces
  • Bathroom vanity tops
  • Outdoor kitchen and BBQ areas
  • Commercial food preparation surfaces
  • Laboratory benchtops
  • Reception desks and commercial counters
  • Bar tops and servery areas
  • Splash backs and wall cladding
  • Window sills and architectural features
  • Hospitality and healthcare surfaces
Recycled Content 0
Renewable Content 0
Recyclability 100
Embodied Carbon 290 kgCO2e/m²
Embodied Energy 3.5 MJ/kg
EPD Available No
Advantages
Exceptional durability with 40+ year lifespanHeat resistant up to 350°C for direct pot placementScratch resistant with 6-7 Mohs hardness ratingEach slab unique with natural patterns and coloursUV resistant for outdoor applicationsNon-combustible for bushfire zones (BAL-FZ compliant)Adds significant property value (up to 25% for kitchens)Low maintenance when properly sealedResistant to acids and chemicals (when sealed)Environmentally preferable to synthetic alternatives
Cautions
High initial cost ($700-$2000 per m² installed)Heavy weight requires substantial support structureNatural porosity requires periodic sealingCan crack under extreme thermal shock or impactLimited repair options for chips or cracksProfessional installation requiredLighter colours more prone to stainingTransport emissions for imported stoneNon-renewable resourceCold surface feel in winter months
TECHNICAL DATA: PERFORMANCE PROPERTIES MIN-STN-IGN-003
Density (Dry) 2700 kg/m³
Specific Gravity 2.7
Porosity 0.4 %
Water Absorption 0.2 %
Hardness 6.5 Mohs
UV Resistance Excellent
Chemical Resistance Good
pH Tolerance 3 – 11 pH
Compressive Strength 200 MPa
Tensile Strength 15 MPa
Flexural Strength 20 MPa
Shear Strength 27 MPa
Elastic Modulus 70 GPa
Bearing Capacity 200 MPa
Poisson's Ratio 0.25
Creep Resistance Excellent
Abrasion Resistance 25 mm³
Thermal Conductivity 2.7 W/m·K
Thermal Resistance 0.011 m²·K/W
Specific Heat Capacity 840 J/kg·K
Thermal Expansion 7.4 µm/m·K
Melting Point 1215 °C
Optical
Light Transmittance 0 %
Light Reflectance (LRV) 30 %

Granite has been used as a building material for millennia, with ancient Egyptian and Roman structures demonstrating its longevity. Modern granite benchtop fabrication began in the 1980s with the development of diamond tooling and CNC machinery. Australia's granite industry developed significantly from the 1990s, though imported stone now dominates the market. Brazilian exotic granites entered the Australian market in the 2000s, expanding colour options. Current trends favour honed and leathered finishes over traditional high polish, with waterfall edges and mitred joins showcasing advanced fabrication techniques. The material remains a benchmark for premium surface materials despite competition from engineered alternatives.

SAFETY, ECOLOGY & INSTALLATION MIN-STN-IGN-003
Flame Spread Index 0
Smoke Developed Index 0
Fire Resistance Rating Non-combustible hours
Heat Release Rate 0 kW/m²
Toxicity of Combustion None
Embodied Carbon (A1-A3) 290 kgCO2e/m²
Embodied Energy 3.5 MJ/kg
Water Footprint 150 L/m²
EPD Available No
Recycled Content 0%
Renewable Content 0%
Circular Economy Score 6 /10
VOC Emissions 0 g/L
Installation Time 4-8 hours per kitchen
Setting Time 30 minutes min
Temperature Range 10 – 35 °C
Humidity Range 30 – 80 %RH
Required Tools
Diamond blade wet sawsCNC routing equipmentPolishing equipmentLifting equipment (minimum 2-person)Templating toolsAdhesive application toolsLevel and measuring equipment
Certifications Required
Silica dust safety trainingManual handling certificationWorking at heights (if applicable)
Weather Limitations
Indoor installation preferredAvoid extreme temperature during transportProtect from rain during installation
COMMERCIAL, LOGISTICS & REGULATORY MIN-STN-IGN-003
Annual Maintenance 50 AUD/year
Lifecycle Cost (50yr) 35 AUD/m²/year
Market Availability Readily available
Design Life 40-100+ years
Service Temp Range -30 – 350 °C
Dimensional Stability Excellent

DISCLAIMER: This specification document is generated from the CLAD Materials Atlas Database. Information is for general guidance only and does not constitute professional engineering advice. Values are typical and may vary by batch, manufacturer, and production run. Verify suitability for specific project applications independently.

ID: MIN-STN-IGN-003 Schema: v3.0