Jetty & Wharf Construction in Sydney

We build with seasoned Australian hardwoods chosen for strength, durability and how they stand up to salt water.

• Spotted Gum: Our go-to for decking. It’s hard, stable and naturally durable, and it weathers to an even silver-grey.
• Ironbark: One of the densest, toughest hardwoods available. We use it for bearers, joists and high-wear areas.
• Blackbutt: A lighter-toned option for decking and balustrade, with good durability above the waterline.
• Turpentine: Where timber piles are specified, turpentine is the standard. Its natural silica content resists marine borers better than almost any other timber.

Every board is Class 1 or Class 2 durability and fixed with marine-grade stainless steel, so the fixings won’t corrode before the timber wears out.

FRP stands for fibre reinforced polymer, which is fibreglass set in resin. An FRP jetty uses it instead of timber, usually as open-mesh grating for the deck and sometimes for the frame too. It doesn’t rot, rust or get eaten by marine borers.

When would you use it?

• Over seagrass. Light passes through the grating to the seabed. In NSW this is often required before a jetty will be approved.
• When you want low maintenance. It needs no oiling or sealing and won’t split or decay.
• On exposed sites. It suits constant salt spray and swell.
• Where slip resistance matters. The surface grips well when wet.

It comes down to depth. You need at least 600mm of water at a zero tide before a pontoon will be approved, because anything shallower means it sits on the bottom and damages the seabed. If your frontage has the depth, the ideal setup is a jetty, a hinged ramp and a pontoon. If it does not, we build a fixed jetty or wharf structure instead. We will tell you which one your site allows when we inspect it.

Yes. Private jetties on NSW waterways generally need council development approval, and because they extend over public waterway, NSW Crown Lands licensing applies as well. It is a well-worn path in the Sutherland Shire and we can guide you through what your site will need.

A properly built hardwood jetty routinely serves 30 to 50 years, with decking and fittings refreshed along the way. What decides its life is pile quality and build standard. That is exactly why we drive our own piles and build heavier than we strictly have to.

Yes. We repair, re-deck, re-pile and extend existing jetties all the time. If your jetty is structurally sound we work with what is there. If it is not, we will give you an honest rebuild-versus-repair assessment backed by a proper inspection.