Our concrete breakwaters, manufactured in house, are designed to attenuate waves to an acceptable level so that sheltered berthing can be provided where a fixed breakwater is not feasible.

Manufactured from grade C50/60 reinforced concrete with internal polystyrene blocks, the breakwaters also offer a berthing facility for boats in exposed conditions.

We pay particular attention to the lifespan of our units, given the severe environments they function in, and offer galvanised reinforcing steel as standard and a glass fibre reinforced concrete skin to the base of the floatation blocks.

Product Features and Benefits

Bespoke Pontoon Design

We customise our breakwaters to meet individual customer requirements with breakwaters up to 6m wide available.

Wave Dampening

Our breakwaters have excellent wave attenuation properties. Transmission co-efficients have been derived for out breakwaters to provide a detailed analysis of the level of protection offered on all sites.


The connections consist of high yield stainless steel wire rope and rubber buffers with IRHD 70, offering a combination of strength and flexibility to suit even the most onerous sites.


Our breakwaters are manufactured from grade C50/60 concrete, offering a high strength unit.

Reinforcing Steel & Concrete Cover

Galvanised reinforcing steel is used throughout, and a concrete cover is provided in accordance with exposure classifications ensuring its longevity.

Base Skin

A glassfibre reinforced concrete skin can be added to the base of the breakwaters to protect floats, preventing damage and buoyancy loss.

Mooring Systems

When a mooring system is used for restraint our breakwater offers a mooring box as standard. The chain and rope can be fed from the deck level and held in the mooring box, substantially reducing the underwater work required from other systems such as mooring hooks. This reduces installation time and facilitates safer maintenance.

Piling Systems

For breakwaters restrained by a piling system, we can offer the option of either an external or internal pile guide. Both systems are designed to satisfy the range of loads experienced by the pontoons.

Fender Options

The fender options available for our breakwaters are rubber, plastic or timber.

Service Options

Cast in ducting is provided for service runs with manholes located at suitable spacings for convenient access.

Side by Side Connections

We can offer side by side connection for breakwaters to form larger platforms, extending the width up to 12m.

Mooring Bollards

Mooring bollards with up to a 10T load capacity can be provided in either galvanised or powder coated finish.


All our pontoons are manufactured to an ISO 9001 Accredited System.

Technical Specifications

Concrete Breakwater Units

Live Loading


Design Codes

BS6349 (British Standard Code of Practice for Maritime Structures)



Steel Reinforcement & Concrete Cover

To EN 1992-1-1/BS4449 and Hot-dip Galvanising to EN ISO 1461. Concrete Cover designed to BS EN 1992-1-1:2004

End to End Connections

6 x 40T (Minimum) SWL - Stainless Steel Connectors (per joint) with 2 No. IRHD 70 Rubber Buffers

Side to Side Connections

High Tensile Threaded Bars with Elastomeric Bearing provided at joints.


150x50mm Hardwood as standard (Softwood, Rubber or Plastic available on request)

Surface Finish

Top surface with non slip brush finish


Options - External Piles, Internal Piles or Mooring System using Mooring Tubes or Mooring Hooks

Standard Dimensions

Type 1

20m x 4m x 1.75m (60T)

Type 2

20m x 5m x 1.41m (70T)

Type 3

20m x 4m x 1.41m (60T)

Type 4

20m x 3m x 1.41m (50T)

Bespoke Range

Non Standard

Units can be manufactured outside the above standard range with moulds available for units 6m wide

Floatation Blocks

Bottom Skin (optional)

Grade 18 GRC (Glass-fibre Reinforced Concrete)


15kg/m³ Polystyrene




Type 1 - 800mm; Type 2, 3 & 4 - 500mm (other freeboards available on request)