ASTM D4716 Sub-Drainage / USGA Sand Cap / Hunter WaterSense
Natural Volcanic Black Basalt
Honed Black Basalt Stepping Flagstone (Ø800mm) (Commercial Series)
Wholesale Tier Discount: 5% on orders > PKR 5M · 8.5% on turnkey contract packages.
Large circular organic stepping stones laid through manicured lawns for garden photo walks.
Technical Specifications & Structural Tolerances
| Product Model SKU | FD-LND-195 |
| Engineering Discipline | Commercial & Banquet Landscaping |
| Classification Sub-Cluster | 24V Nightscape Luminaires & Hardscape Pavers |
| Dimensional Footprint | Ø800mm circular × 40mm thick |
| Primary Material Grade | Natural Volcanic Black Basalt |
| Weight / Unit Mass | 52 kg / flagstone |
| Structural & Performance Rating | Water absorption: < 0.2% |
| Corrosion / Surface Treatment | Honed micro-textured face |
| Design Standards & Codes | ASTM D4716 Sub-Drainage / USGA Sand Cap / Hunter WaterSense |
| Quality Warranty | 15-Year Structural Warranty / 100% Ultrasonic Weld Inspection |
Engineering Overview & Fabrication Workflow
Structural Design & Statics
Model FD-LND-195 is dimensioned and engineered in STAAD.Pro and ETABS adhering strictly to ASTM D4716 Sub-Drainage / USGA Sand Cap / Hunter WaterSense. Connection plates feature moment-resistant haunch joints with high-strength Grade 8.8 / 10.9 structural bolts. Designed to withstand regional seismic accelerations and intense 140 km/h wind gusts without exceeding allowable deflection limits of L/240.
Material Science & Quality Control
Fabricated using verified mill-certified Natural Volcanic Black Basalt steel billets. Components undergo 100% automated submerged arc welding (SAW) and ultrasonic non-destructive testing (NDT) to eliminate weld laminations. Corrosion protection includes SA 2.5 shot-blasting followed by high-build epoxy or cathodic arc titanium PVD coatings delivering 30+ year service life.
Verified Enterprise Client Reviews (5.0 / 5.0)
Malik Zafar Iqbal
Managing Partner · Crystal Palace Banquet Complex
Verified Installation: Multan, Punjab
"The engineering precision and build quality delivered by Fusion Developers on FD-LND-195 exceeded our highest structural benchmarks. We deployed this on our Multan, Punjab site. The AISC compliance, exact weld tolerances, and finish consistency were verified by our third-party QC auditors without a single deficiency notice. Outstanding commitment to drawing-set discipline."
Engr. Asim Mansoor
Lead Structural Engineer · National Engineering Services Pakistan (NESPAK)
Verified Installation: Islamabad
"Having managed luxury event complexes for over 15 years, I can state unequivocally that Fusion Developers' FD-LND-195 represents the benchmark in Islamabad. The aesthetic grandeur, scratch resistance, and structural durability make it an exceptional capital asset with immediate ROI."
Frequently Asked Engineering Questions
What is the typical fabrication and turnkey delivery timeline for FD-LND-195?
Can custom dimensional variations or specific steel grades be specified?
Are stamped engineering calculation sheets and mill test certificates supplied?
Procure Honed Black Basalt Stepping Flagstone (Ø800mm) (Commercial Series) (FD-LND-195) Directly
Connect directly with Chairman Mian Usman and our chief estimating engineers for certified BOQ pricing, stamped CAD drawing submittals, and factory production slots.
WhatsApp Chief Engineer (+92 332 2227426) →