DID YOU
KNOW ?
HDPE is inert!
It's great for making chemical storage tanks.
POLY BARGES & PONTOONS



Polyline Industries design and manufacture customised Barges and Pontoons for the Mining, Marine and Oil & Gas industries. A range of floating platforms can be built for jetty's, walkways, floating pump landings, work platforms, plane/helicopter/boat landings, houseboats, party boats - the list goes on!
Our Barges and Pontoons are fabricated using Polyethylene (Poly or PE) which by nature has these great qualities:
HDPE is more buoyant than water and assists in the floatation of the vessel resulting in lower possible vessel weights and improved fuel economy.
HDPE is UV stable and does not corrode giving the pontoon a life expectancy of up to 100 years (colour dependent).
Does not require sealing, painting or anti-fouling to prevent marine growth. To clean it just use a high-pressure cleaner. Consider the cost-saving on this alone!
HDPE barges & pontoons are a safe platform choice as they're 100% watertight and designed according to your requirements.
For a similar price to aluminium, the advantages of HDPE barges & pontoons far outweigh the benefits of an aluminium floating platform.
With Polyline's specialist fabrication capabilities in poly pontoons and barges, be sure to send us a message for a free quote on your next project!
View a sample of Polyline's Barges & Pontoons:
21 Meter Barge
The “Responder 3” is a 21m x 13m modular barge and to our knowledge is the largest poly barge built in the world. In 2C survey, the barge was designed to be built into modules for ease of transport. It is currently operating off the north cost of Western Australia.



Class: | 2C |
LOA: | 21.25m |
Measured Length: | 21.00m |
Moulded Beam: | 13.28m |
Displacement: | 300t |
Waterline Length: | 21.0m |
Waterline Beam: | 13.28m |
Hull Draft: | 1.28m |
Vessel Speed: | N/A |
Pax/Crew: | N/A |
8 Meter Barge
Named the "Hardship 3" this 8 meter barge was designed and built as a working platform at Koolan Island (Kimberley coast of Western Australia). Outboard motors were fitted to the barge so that the working personnel could install anchors around the island.



Features • The wake in photo of the Barge on the water shows • This barge is 8m x 3.5m and has wheels designed to • It has a simple console. | Specifications Overall Length: 8m ** Dependant on engine selection |
6 Meter Walkway Pontoon
This walkway pontoon is installed at Koolan Island (Kimberley coast of Western Australia).
It is a floating platform which supports a gangway for land to sea / sea to land transfer of crew and cargo.
The flexible walkway joins allows both the walkway and pontoon to be used at varying tide levels up to 10 meters.


Features • Protective rails • Non slip deck • Low maintenance • No painting required | Specifications Overall Length: 6m Beam: 4m Displacement: 4000kg Load Capacity: 4000kg Draught: 0.400 Metres light load 0.800 Meters full load |
Pontoons for Party Boat
Polyline design, repair and fabricate the poly pontoons for leisure vessels such as a Party Pontoon. Custom variations can be accommodated to suit your requirements (without adding extraordinary costs to the project).



- HDPE Pontoons increase the weight of the party boat equating to a more comfortable ride (wont bob around like a cork)
- An increased displacement and weight means if a group of people move to one location the vessel is less effected (wont nose dive when everyone runs to the bow of the barge to see the Dolphin)
- The cost to manufacture is very similar to replacement aluminium pontoons
- Extended life expectancy as Poly will not corrode. There's also no need to anti-foul