FAQs

Yes, you can. Pontoon Plus block floats operate a modular system and they are easy to install yourself.

Customers can effectively order any amount.

As a rough pricing mechanism customers can use $670 incl. GST (or $580 excl. GST) per m2 for the cost of the pontoon floats and the accessories.

For example: A 1m wide walkway will cost around $670 incl. GST per metre whereas a 1.5m wide walkway will cost $1,005 incl. GST per metre.

Note: The price is subject to change depending on the accessories you may need for installation.

Pick up is free from our yard in Glenfield, Auckland.

Otherwise shipping can be arranged to anywhere in NZ or the Pacific Islands.

If the site is a rural location it is often quite a lot cheaper to have the goods shipped to a local depot for pickup by the client as freight companies will charge a lot more for transport off the main routes.

Grey is the default colour for the pontoons and is what is held in stock.

Blue or orange pontoons can be obtained but they will take longer to supply and may have a minimum order quantity.

No we do not offer an installation service.

Yes they are. They are modular and easy to configure to fit your needs. The video to the right demonstrates just how easy it is to move these pontoons around.

All Pontoon Plus block floats carry a 5-year manufacturer warranty, but they should last up to 15 years. Accessories are warrantied for 1 year.

Every square metre of the 50 x 50 x 40 standard floats (i.e. 4 floats) can support 350kg.

Refer to next FAQ for more detail.

Here are more detailed floatation calculations for the Pontoon Plus pontoons:

The weight that a 500mm by 500mm by 400mm cube float can support depends on several factors, including the density of the material the cube is made of and the volume of water it displaces. To calculate the buoyant force and, in turn, the weight the cube can support, you can use the following formula:

Buoyant Force (F_b) = Volume of Water Displaced (V) × Density of Water (ρ_water) × Gravitational Acceleration (g)

Where:

• Volume of Water Displaced (V) is equal to the volume of the cube.
• Density of Water (ρ_water) is approximately 1,000 kg/m^3.
• Gravitational Acceleration (g) is approximately 9.81 m/s^2.

First, you need to convert the dimensions of the cube from millimeters (mm) to meters (m) to match the SI unit for density:

Cube Dimensions: Length (L) = 0.5 m Width (W) = 0.5 m Height (H) = 0.4 m

Now, calculate the volume of the cube:

Volume (V) = L × W × H V = 0.5 m × 0.5 m × 0.4 m V = 0.1 m^3

Now, you can calculate the buoyant force:

F_b = V × ρ_water × g F_b = 0.1 m^3 × 1,000 kg/m^3 × 9.81 m/s^2 F_b ≈ 981 N

So, a 500mm by 500mm by 400mm cube can support a weight of approximately 981 Newtons when it is floating in water. This is the upward force exerted by the water on the cube, which counteracts the cube’s weight.

981 Newtons equates to 100kg. So each pontoon plus float should be able to support around 100kg – the floats themselves weigh 7kg so the net weight they can support is 93kg per float. A square metre of pontoons can therefore support 372kg.

Realistically you may want an area above the surface (and a margin for safety) so if we consider that you would like to have a minimum of 10% (4cm) above the surface then the calculation per block would become 0.5*0.5*0.36 = 90kg less the weight of the block itself of 7kg = 83kg per block. So one square metre would hold 334kg with 10% of the pontoon above the water still.

Yes of course you can. Pontoon Plus float blocks are the ideal solution to creating a jetty for all boats, runabouts and jetskis of up to 10 metres.

Yes, your pontoons can be insured as part of your house insurance.

There is no need to do this but doing so will reduce weed and barnacle growth. Floating pontoons can easily be towed a short distance by a quad bike or ordinary car. This, of course, depends on the size but they can also easily be broken into sections for convenient storage.

One option to secure the pontoon from theft is to create a special pin that will require some knowledge of how it works and/or a degree of difficulty to undo. The idea is you create a stainless or galvanised steel equivalent of the mushroom pin using a rounded plate and 25mm + threaded rod with a loop (either steel or made from heavy wire ) welded to the bottom that you can attach a chain to using either a shackle or a padlock – see attached drawing. This will not deter a determined thief but they would need to put in a substantial effort and would likely be quite noticeable doing it.

Example of how to secure the mooring attachment.

The specs for a Standard Pontoon Float are:

• Dimensions: 500mm  x 500mm x 400mm high
• Weight: 7kg
• Construction:  7mm HDPE
• Flotation:  Approximately 85kg