Free instant estimate
the Gold Coast jetty & pontoon cost calculator
This tool gives you a ballpark price for a new jetty or pontoon based on length, structure and decking. It's a guide only - water depth, tidal range and pile requirements vary a lot, so a firm quote needs an on-site inspection.
What this jetty and pontoon estimate includes
- Ranges are indicative national figures for 2026 and include GST - use them as a guide only.
- Assumes reasonable barge/rig access and standard water depth; deep or heavily tidal sites cost more.
- Includes supply and install of marine-grade piles, bearers and decking to a standard residential spec.
- Excludes dredging, seawall or retaining work, boat lifts and major electrical.
- Waterway authority and council approval fees are not included in the build price.
Cost calculator questions
How much does a jetty cost per metre?
As a rough guide, a fixed timber jetty runs about $2,200-$3,800 per metre installed, before extras like a gangway, lighting or premium decking. Floating pontoons and combined structures cost more.
Why does the price vary so much?
Water depth, tidal range, seabed type and site access are the big drivers. Deep water needing long piles, a hard or rocky seabed, or poor barge access all push the price up.
Do I need council or waterway approval?
Most waterfront and canal jetties do. You'll usually need approval from your state's waterway or maritime authority and sometimes your local council. Those fees aren't included in the build price.
Fixed jetty or floating pontoon?
Fixed jetties feel solid and suit stable water levels; floating pontoons rise and fall with the tide, which is better for large tidal ranges and boarding boats. Many canal jobs end up combining both.
What decking lasts best?
Treated pine is the cheapest, hardwood looks great and wears well, and composite needs the least maintenance in salt spray. Composite costs more upfront but saves on upkeep over the years.
How long does it take to build?
A straightforward residential jetty usually takes one to three weeks on site once approvals are in place, depending on pile numbers, weather and tides.
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