small boat Building

Noosa Plans


A boat to walk to the water

At 1m (3.3′) wide, it’s easy to walk along the footpath with Noosa. And, this boat will plane with one adult and gear, with a 3.3hp motor. Unheard of with an aluminium tinny.

The plans are 7 PDF files including elevation drawings, template drawings, material list, buoyancy calculations and build notes to help you along the way.

Use marine ply or build with exterior grade ply. I build all of my small boats with exterior grade ply. It works perfectly and is cheap and available at your local home builders stores. But the choice is up to you.

Plywood Boat Plans


– LOA (length overall)       = 3.45m (11.3ft)
– Beam (max at handrails) = 1.09m (43in)
– Transom height  = 386 mm – (15.2in)
– Height of sides  = 336 mm – (13.2in)
– Estimated weight of boat = 50 kg – (110lbs) (unpainted)
– Maximum motor size  = 5hp
– Recommend motor size    = 3.3hp
– Max payload = 198 kg – (436lbs) (of empty boat – no motor or equipment)
– Max payload (with 5hp as max motor) = 146 kg – (321lbs)
– Max payload (with 3.9hp as max motor) = 180 kg – (396lbs)

What's in the Plans?

The plans comprise the following PDF documents. Downloaded them to your computer, phone, or tablet and work directly from your device or print them out to work from more comfortably.

Full plans for Noosa include:

1-Welcome complete package (3-pages)
2-Specifications Noosa (2-pages)
3-Materials lists + safety gear (8-pages)
4-Build notes (12-pages)
5-Detail views sheet—3D model details (11-pages)
6-Drawing (elevation) (11-pages)
7-Template drawing (6 & 9 mm Ply) (13-pages)

Material List

Below will give you an idea for costing your boat. See the plans for a detailed list and explanations.

Plywood—you don’t need to use expensive grades of plywood or marine ply to make this boat. You can use marine ply if you prefer, and your boat will look even better, when unpainted or varnished, but it’s not required. I designed the boat with economy and ease of material purchase in mind—exterior grade economy plywood will do the job perfectly.

Sheets required:
4 sheets of 6mm (1/4”)
1 sheet of 9mm (3/8”)

For the framing, i.e. the side top handrails, seat edges, etc. pine is economical, readily available and perfectly suitable. Or use a higher quality wood such as cedar for lightweight or hardwoods, it’s your choice.

Framing required:
Approx 15m (50’) of wood framing

– Epoxy resin—approx 10 litres (or less) of epoxy
– Filler for epoxy—small amount of each type of filler
– Fibreglass tape —approx 50m (165’) of 50mm (2”) tape
– Paint—a small amount of paint (there are many options)
– Foam buoyancy
– Motor (1)
– Other assorted fittings

Capacities and Load Rating

Depending on where you live and how you use your boat, you may (or may not) need to register the boat and/or to conform to regulations regarding the maximum size of motor you can use and how many people you can carry. If you need to follow rules, here are the specifications that apply to this boat.

– Maximum load capacity of boat = 198kg.
– Maximum passenger load with 5hp motor = 146kg.
– Maximum passenger load with 3.9hp motor (kg) = 180.

The rules subtract 52kg for a 5hp motor & 18kg for a 3.9hp motor. The assumed weight of an adult for the calculations is 90kg.

Calculations and volumes of required foam to meet floatation requirements are included in the plans. These calculations are based on the Australian regulation AS1799.1, (which are inline with European ISO and the American standards) for protected waters.

Print or work from screen

Print out the plans on any A4 printer to work from. Or, work directly from your laptop of tablet. The plans are vector PDF, which you can zoom with no loss of quality.

Tim Weston Boats