12 m Pontoon — Koolan Island
Twin-cylinder HDPE pontoon assembly built for a 12 m barge platform installed at Koolan Island. Sealed HDPE cylinders under custom workboat deck — corrosion-free service in salt-water exposure.
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Pontoons
HDPE pontoons — sealed-cylinder flotation modules engineered for project-specific installations. Built to drawing for shore-tied pontoon barges, modular work platforms and bespoke marine builds.
At a glance
Specifications.
Material
HDPE — UV-stable, sealed, corrosion-free
Build
Fabricated to project drawing — diameter, length and lift to spec
Compatibility
Floating Platforms and custom deck builds
Reference deployment
12 m pontoon barge, Koolan Island
Why this product
Engineered for working sites.
Sealed HDPE pontoons are the buoyancy element used under floating platforms, barges and work decks. Each pontoon is fabricated from the same UV-stable HDPE used across the Polyline Water range — corrosion-free, impact-resistant and inert in salt or brackish water. Custom diameter, length and lift to project spec.
- Sealed buoyancy chambers — never fills, survives strikes
- HDPE — UV-stable, corrosion-free, no painting
- Built to drawing for project-specific installations
- Bolt-up under standard HDPE pontoon decks or custom deck builds
Reference installation: 12 m HDPE pontoon barge build at Koolan Island, twin-cylinder hull with custom deck — see the variant gallery below.
Sizes
Pick a size — or spec your own.
| Size | OD | Length | Weight | Notes |
|---|---|---|---|---|
| Custom | — | — | — | Sized to project drawing — diameter, length and lift to spec |
Named variants
Catalogued sub-products in this range.
Each variant below is a distinct, named configuration we’ve built. Tap the image to view the full gallery.
Ready to specify pontoons?
Send your site details and requirements — our engineering team will scope and quote.