For boat mooring and general purpose use

The pontoons are connected by flexible rubber bolt joints, cornerwise and sideways if required, and can create the strongest mooring points for large marinas. The models optimise use of materials to generate an economical but very durable pontoon for any marina. Modules are available in a range of standard sizes 2.4–4.3 m wide and weighing 8–20 ton. The series is offered with a range of optional accessories that can be incorporated to customise each system. Options include different kinds of decking and cable ducts to carry water, power, grey water and fire mains; and two different fixing systems incorporating universal adjustments for fingers. All floats have a unique anchoring system specifically designed to accommodate Seaflex for easy and safe mooring. Chain and pile mooring can also be used. As with all Marinetek concrete systems, Heavy Duty Pontoons are of exceptionally strong construction with a 50 year design lifetime.

Technical data

Width with fenders (m) 2.7 3.3 4.3
Concrete width (m) 2.4 3.0 4.0
Height (m) 0.85 0.85 0.85
Weight (t/m) 0.90 1.02 1.30
Net capacity (kN/m²) 4.7 5.0 5.0
Freeboard (m) 0.47 0.50 0.50
Strength of joint (kN) 2×322 2×322 2×322
Joint gap (mm) 35 35 35

Concrete strength

Concrete strength: 45 N/mm2 steel reinforced plastic fibre concrete. Exposure class according to European EN 206-1 standard


Expanded polystyrene, density 15 kg/m3


Partly or fully hot dip galvanised steel

Optional accessories

Timber or wood composite deck, fixing rails, finger fixing system, cable ducts and fenders (timber or wood plastic composite)