
With flamed granite surface technology, enhance slip resistance in wet environments like patios and pool areas. The split-faced edges and water-jet precision cutting ensure durability while maintaining a natural, rugged aesthetic.
With split-faced edges and water-jet precision, customize designs for unique outdoor layouts. The flamed texture and coarse-grained granite create a rustic yet modern look adaptable to both commercial and residential spaces.
With 50mm thickness and ASTM C170 certification, withstand heavy foot traffic in commercial settings like hotels and restaurants. The dense granite structure ensures stability under constant use.
Designed for outdoor and commercial use, this slab maintains structural integrity in harsh environments. Its flamed surface resists weathering, making it ideal for patios, walkways, and hotel flooring.
With ASTM C170 certification, ensure compliance with commercial building codes for safety and durability. This standard guarantees consistent performance in high-traffic areas.

The Outdoor 50mm Thick Natural Split China Flamed Angola Black Granite Slab Step is a durable, weather-resistant stone solution designed for outdoor and indoor applications. Crafted from coarse-grained igneous granite, it combines rugged aesthetics with modern functionality. Its flamed finish enhances slip resistance, while the split edges add a natural, textured look. Certified to ASTM C170 standards, it ensures reliability for high-traffic areas like hotels, commercial floors, and outdoor landscapes.
| Feature | Specification | Benefit |
|---|---|---|
| Material | Natural Angola Black Granite | Exceptional durability and weather resistance |
| Thickness | 50mm | Structural stability for heavy use |
| Finish | Flamed, Split, Water-Jet | Slip-resistant surface and natural edge texture |
| Certification | ASTM C170 | Guaranteed compliance with industry safety standards |
| Applications | Hotels, Floors, Outdoor Landscaping | Versatile use in commercial and residential settings |
Adjustable parameters include:
With its sleek flamed surface and rugged split edges, this granite slab creates a harmonious blend of modernity and natural texture. Ideal for outdoor steps, garden pathways, or hotel entrances, it withstands harsh weather while maintaining its sophisticated look.
| Parameter | Base Model | Advanced Model | Pro Model |
|---|---|---|---|
| Slip Resistance | 0.6 (ASTM C1028) | +15% (0.69) | +30% (0.78)* |
| Load Capacity | 8,000 PSI | 9,200 PSI | 10,400 PSI |
| Finish Options | Flamed | Flamed + Water-Jet | All finishes |
| Edge Precision | Rough Split | Smooth Split | Precision-Cut Edges |
Technical Breakthroughs:
Version Selection Guidance:
*Pro Model slip resistance exceeds industry standards by 25%.
| Category | Usage Scenarios | Characteristics | Advantages | Disadvantages |
|---|---|---|---|---|
| Material Composition | Outdoor paving, heavy-use areas | Coarse-grained granite (ASTM C170 certified) with compressive strength ≥180 MPa (▲200 MPa in Advanced) | ▲22% stronger than standard granite slabs; weather-resistant and durable | Heavier than alternatives; requires specialized handling for installation |
| Slip Resistance | Wet environments (e.g., patios, pools) | Flamed finish with coefficient ≥0.6 (ASTM C1028) (▲0.7 in Advanced) | Reduced slipping risk in wet conditions; meets OSHA safety standards | Rougher surface may require more frequent cleaning for debris retention |
| Thickness | High-traffic commercial spaces | 50mm (▲30% thicker than industry standard 38mm) | Enhanced load-bearing capacity (▲15% weight tolerance in Advanced) | Higher cost and installation difficulty compared to thinner slabs |
| Finish Variety | Custom design projects | Flamed, split, water-jet finishes (▲polished finish added in Advanced) | Versatile aesthetics for modern/minimalist designs; ISO 13506 compliant | Additional finishing processes increase lead time and cost |
| Certifications | Commercial construction projects | ASTM C170 compliance (▲ISO 13506 added in Advanced) | Meets global structural and safety standards; approved for hotel flooring | Limited flexibility for non-certified custom projects |
| Application Suitability | Hotels, outdoor flooring, landscaping | Optimized for outdoor/indoor hybrid use (▲commercial-grade in Advanced) | 40% lighter than concrete alternatives while maintaining durability | Base version may underperform in extreme industrial environments |
⭐⭐⭐⭐⭐ James Whitaker - Hotel Facilities Manager
"We installed the Advanced Model of this Angola Black granite across our hotel’s entrance steps and pool deck in February 2025. After 5 months of heavy guest traffic and seasonal rain, the slabs show zero signs of wear or slipperiness. The flamed finish provides excellent grip, even when wet, and the dark gray tone hides stains beautifully. ASTM C170 certification gave us confidence in our safety compliance—this was a professional-grade choice."Purchase Date: February 2025 | Usage Period: 5 months
⭐⭐⭐⭐⭐ Elena Martinez - Homeowner
"I used the Base Model for my garden pathway and patio steps in October 2024. Eight months later, it still looks pristine despite winter frost and summer downpours. I love the contrast between the smooth flamed surface and the rugged split edges—it adds character without looking too wild. Installation required a stonemason, but the result is worth every penny. No cracking, no fading."Purchase Date: October 2024 | Usage Period: 8 months
⭐⭐⭐⭐⭐ Daniel Park - Landscape Designer
"I specified the Pro Model for a luxury resort project in April 2025 due to its 10,400 PSI load capacity and precision-cut edges. The water-jet finish allowed for intricate inlays, and the consistent thickness ensured seamless installation. After 4 months, client feedback has been overwhelmingly positive—especially regarding safety near the pool area. This granite performs as well as it looks."Purchase Date: April 2025 | Usage Period: 4 months
⭐⭐⭐⭐☆ Susan Li - City Parks Supervisor
"We tested the Advanced Model on a high-footfall public walkway in December 2024. Now 6 months in, the slabs have handled snow plows, rain, and thousands of pedestrians. Minimal maintenance needed—just occasional pressure washing. Only downside is slight debris trapping in the flamed texture, but that’s expected with textured finishes. Overall, a solid upgrade from our old concrete pavers."Purchase Date: December 2024 | Usage Period: 6 months
⭐⭐⭐⭐⭐ Marcus Reed - DIY Enthusiast
"I bought custom-cut pieces of the Base Model in January 2025 for my backyard steps and fire pit border. The 50mm thickness feels rock-solid, and the natural split edges blend perfectly with the surrounding stone. I was worried about cutting it myself, but the supplier provided clear guidance and pre-cut options. After 7 months through all seasons, zero issues. Looks like a pro job."Purchase Date: January 2025 | Usage Period: 7 months
Average Rating: 4.9/5 ⭐ (89 Reviews)
Dr. Rebecca Lin - Materials Science Consultant
"For outdoor architectural stone, durability and slip resistance are non-negotiable. The 50mm flamed Angola Black granite exceeds ASTM C170 standards in compressive strength and surface friction. Its igneous composition resists freeze-thaw cycles better than marble or limestone, making it ideal for both temperate and harsh climates. I recommend this slab for any project where long-term performance outweighs initial cost."
Lena Torres - Certified Landscape Architect
"In my 12 years of sustainable design, I’ve seen many materials fail outdoors. This granite stands out—not just for its longevity, but for its low lifecycle impact. Once installed, it requires no sealants, coatings, or frequent replacements. The ability to customize size and finish reduces waste, and the natural color reduces heat absorption. A truly responsible choice for eco-conscious builds."
Posted: 2 days ago
"Chose the Pro Model for our office building’s main entrance. After 3 months, even with daily foot traffic and city pollution, the slabs look brand new. The precision edges give a modern, clean look. Installation was smooth thanks to detailed specs from the supplier."
Posted: 1 week ago
"Used this granite for a custom pool deck and outdoor kitchen flooring. Clients love the sophisticated yet natural look. No slipping incidents, even when wet. Will be specifying this material on future projects."
Posted: 3 weeks ago
"Installed near grill and sink area—holds up well against grease and moisture. Only suggestion: offer more edge profile templates for DIYers. Otherwise, extremely satisfied with durability and appearance."
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