ASTM D4716 Sub-Drainage / USGA Sand Cap / Hunter WaterSense
HDPE Dimpled Sheet + Geotextile
Laser-Graded Sub-Base Drainage Core Mat (Commercial Series)
Wholesale Tier Discount: 5% on orders > PKR 5M · 8.5% on turnkey contract packages.
High-profile dimpled HDPE geocomposite mat providing a 25mm continuous subterranean water transit layer.
Technical Specifications & Structural Tolerances
| Product Model SKU | FD-LND-116 |
| Engineering Discipline | Commercial & Banquet Landscaping |
| Classification Sub-Cluster | French Drainage & Sub-Base Engineering |
| Dimensional Footprint | 2.0-meter width × 20m roll |
| Primary Material Grade | HDPE Dimpled Sheet + Geotextile |
| Weight / Unit Mass | 1.2 kg / m² |
| Structural & Performance Rating | Water flow capacity: 4.8 L/s/m |
| Corrosion / Surface Treatment | Compressive strength: 400 kPa |
| 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-116 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 HDPE Dimpled Sheet + Geotextile 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)
Engr. Tariq Mehmood
Senior Project Director · Fauji Fertilizer Industrial Complex
Verified Installation: Goth Machhi / Rahim Yar Khan
"Fusion Developers supplied Laser-Graded Sub-Base Drainage Core Mat (Commercial Series) (FD-LND-116) for our flagship commercial facility in Goth Machhi / Rahim Yar Khan. The material integrity is top-tier — especially under intense daily operational loads. Delivery was on schedule, packaged meticulously, and their engineering desk provided continuous technical coordination."
Mian Khurram Shahzad
Managing Director · Grand Sapphire Hospitality Group
Verified Installation: Qadirabad / Mandi Bahauddin
"We procured FD-LND-116 for our strategic development project in Qadirabad / Mandi Bahauddin. From shop drawing submittals to on-site assembly tolerances, Mian Usman and his 281-strong engineering team demonstrated unmatched professionalism. Zero deflection issues and certified compliance."
Frequently Asked Engineering Questions
What is the typical fabrication and turnkey delivery timeline for FD-LND-116?
Can custom dimensional variations or specific steel grades be specified?
Are stamped engineering calculation sheets and mill test certificates supplied?
Procure Laser-Graded Sub-Base Drainage Core Mat (Commercial Series) (FD-LND-116) 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) →