Drainage Corrugated Drainage Pipe
HDPE double-wall corrugated drainage pipe (Type S) to AASHTO M294 — corrugated outside, smooth inside, solid or perforated, 4"–60" for culverts.
- AASHTO M294
- Type S dual-wall
- 4"–60" · solid / perforated
Drainage
Drainage Geosynthetics
Our drainage range collects and conveys water below ground — geonet and dimpled drainage sheet for planar flow, corrugated and perforated drainage pipe for collection, and the prefabricated vertical drain (wick drain / PVD) and prefabricated horizontal drain for soft-soil consolidation. As a drainage geosynthetics manufacturer we size each product to the required flow rate per ASTM D4716.
Planar drainage vs pipe drainage
Drainage geosynthetics move water in two ways. Planar products — the HDPE geonet and the dimpled drainage sheet (dimple board) — create a high-flow gap against walls, foundations and beneath landfill caps, with transmissivity verified to ASTM D4716. Pipe products collect and carry that water away: the corrugated drainage pipe (DWC / culvert pipe) and the perforated drainage pipe for french drains. Wrapping the pipe or geonet in a nonwoven geotextile filter keeps soil out and flow paths open.
Soft-soil consolidation drains
For ground improvement we supply the prefabricated vertical drain — the wick drain (PVD) — installed in soft clay to shorten drainage paths and speed consolidation under preload, plus the prefabricated horizontal drain (PHD) for horizontal collection. The rainwater storage module (stormwater storage crate) adds modular sub-surface attenuation. See the geonet, wick drain (PVD), corrugated drainage pipe and dimpled drainage sheet for flow and depth selection.
Drainage products
Drainage 
Drainage Rigid Permeable Drain Pipe
Rigid permeable drain pipe (plastic blind ditch) — a PE filament-wound permeable core, optionally geotextile-wrapped, for rapid groundwater intake.
- Plastic blind ditch
- PE permeable core
- Geotextile-wrapped (optional)
Drainage Wick Drain (PVD)
Prefabricated vertical drain (PVD / wick drain) — a PP drainage core in a nonwoven PP geotextile filter that accelerates consolidation of soft soils.
- ASTM D4716
- 100 mm band drain
- PP core + geotextile filter
Drainage Dimpled Drainage Sheet
HDPE dimpled drainage sheet (dimple board) — a studded polyethylene membrane that drains and waterproofs foundation walls, basements and green roofs.
- HDPE dimple board
- Drainage + waterproofing
- Geotextile-faced (optional)
Drainage Prefabricated Horizontal Drain (PHD)
Prefabricated horizontal drain (PHD) — a strong PP drainage core in a nonwoven filter jacket, laid horizontally to discharge pore water from drains.
- PHD drain
- PP core + nonwoven filter
- Soft-ground consolidation
Drainage Rainwater Storage Module
Modular PP rainwater storage module (stormwater crate) — high-strength polypropylene cells that assemble into an underground tank for detention and reuse.
- PP storage crate
- Modular · high void ratio
- Detention / infiltration / reuse