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There are three main ways to anchor pontoons:

  • chain anchoring with concrete anchors;
  • pile anchoring with mooring piles;
  • anchoring with mooring diagonals.

It is important to note that single-module pontoons (e.g., swimming pontoon and ECO swimming pontoon) can be installed without anchors. Pontoons with several modules must always be anchored.

As the anchors are heavy, special technology is required to install them, which allows the work to be carried out safely. However, if you are considering installing anchors yourself, please contact us at the bottom of the page first and we will advise you on whether and how you should act.

Chain anchoring

Chain mooring scheme Andry Prodel +372 5304 4000 andry@topmarine.ee

In the Nordic ice conditions, the cheapest and most popular mooring way is to use a combination of concrete anchors and mooring chains. Only a sufficient water depth (1 m) and the right chain length (five times the water depth) are required.

Chain anchoring is designed for securing the vessel horizontally, while retaining its ability to move up and down with water.

Anchors are designed as self-anchoring, and their mounting loops and reinforced concrete are resistant to seawater and to the strong hits from rocks and ice.

The size and quantity of anchors is selected based on the type of substrate and the size of the pontoon. You can increase the anchor’s force by adding extra weights that are attached to the middle of the chain.

Technical specifications

Extra weightWidth x length x height (mm)Mounting loops / mooring chain (mm)Using locations
50 kg extra weight400 x 400 x 17513As extra weight on a boat pontoon
200 kg extra weight600 x 600 x 31013As extra weight on timber pontoons with concrete floats
500 kg anchor900 x 900 x 27016 / 13–16Anchor for a swimming pontoon, boat pontoon and 40 l and 60 l mooring buoy
1,000 kg anchor1000 x 1200 x 3602 x 18 / 16Anchor for a boat pontoon, timber pontoons with concrete floats, and for 60 l and 120 l mooring buoy
2,000 kg anchor1200 x 2000 x 362 x 22 / 16–20Anchor for a, heavy duty pontoons timber pontoons with concrete floats and a 120 l mooring buoy

Pile anchoring

Pile mooring scheme Andry Prodel +372 5304 4000 andry@topmarine.ee

The pile anchoring can be successfully used in pontoons that are parallel to the shore and are located at low depths (max 2 m) and have a soft bottom.

Pile mooring is a very secure fastening option, but due to its rigid fixation, there is a great risk that ice will damage the floating pontoon and shifts the piles from their place. For this reason, the use of pile mooring is most common in southern Europe and other permanently warm areas.

In the Nordic countries, the piles must be dismantled every autumn and the pontoon has to be lifted out of the water. In the spring, the piles have to be installed again – this is the only way to prevent damage to the posts by ice.

Diagonal mooring

Diagonal mooring is used little, and in exceptional circumstances when the pontoon is very close to the shore and there is no room for chain mooring. The reason is that there is a risk of damage from ice in the winter, and the connections of the fastenings tend to rumble and squeak when moving around.


  • Assemble your own floating pontoon solution in our web application and immediately see the cost of the project. The application user guide is here.
  • Are you a designer? Download models of anchors and our other products from the ProdLib catalog. If you wish, you will find a step-by-step user guide here.

Price of Anchoring

Prices include 20% Estonian VAT. Prices do not include installation and transport costs. Delivery terms at the FCA plant in Keki 9, Näpi, Estonia.

Chain anchoring set for a Swimming Pontoon214€
Concrete anchor 200 kg2 pcs146€
Chain 10 mm 10 m60€
Shackle 12 mm4 pcs8€
Chain anchoring set for Boat Pontoons400€
Concrete anchor 500 kg2 pcs234€
Chain 13 mm 15 m150€
Shackle 16 mm4 pcs16€
Chain anchoring set for Timber Pontoons with Concrete Floats840€
Concrete anchor 1000 kg2 pcs512€
Chain 16 mm20 m300€
Shackle 20 mm4 pcs28€
Chain mooring set for Medium Duty Pontoon1492€
Concrete anchor 2000 kg2 pcs746€
Chain 20 mm30 m690€
Shackle 25 mm4 pcs56€
Chain mooring set for Heavy Duty Pontoon1922€
Concrete anchor 3000 kg2 pcs946€
Chain 20 mm 40 m920€
Shackle 25 mm4 pcs56€
Pile anchoring
Pile anchoring for Swimming Pontoons146€
Pile anchoring for Boat Pontoons376€
Pile anchoring for Timber Pontoons with Concrete Float730€
Pile anchoring for All Concrete Pontoons1037€

Why choose Top Marine?

Top quality
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Professional installation
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Lauri Lepp
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