Homemade Pontoon House Boats

by Scotty
(Sydney , Austrailia)

Homemade Pontoon House Boats

Homemade Pontoon House Boats

Basically a Pontoon Houseboat Log Cabin on the water. After a years worth of weekends, lots of aluminum and sweat later... the "Nuthouse" was born.


Since we couldn't find the design we wanted, we decided to build this when we saw the base hulls for sale. We wanted something different looking and with a full house size shower, kitchen, bed etc...

Fully solar powered with all 12v LED lighting and 12v fridge/freezer (permanently running) 240 v inverter for accessories, mains pressure water, full size electric toilet, continuous gas hot water, full size gas oven, BBQ, sleeps 4 (1 x double, 1 x Queen sofa bed in lounge) with a dinette yet to be built to allow small adult/children's bed.



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Powered by 2 x 90hp TLDI Tohatsus/Nissans. Economy is the big surprise 6.5-10.0 litres/hr (total for both motors combined) at 6 knots cruise (depends on whether its with or against the tide) usually run at 2000-2400 rpms. Will get 4000 rpms but not sure what speed it is doing then, quicker than most!

Weighs 7.5 tons all up with 1000L of water. All alloy construction with rustic ply cladding. At present, the central pontoon is HDPE pontoons with central one as black water/grey water holding tanks.


These will be removed and substituted with 3ft diam HDPE pipe. This will give better buoyancy (reduce draft from 500mm to 400mm) and with a sloped front may even get me to semi displacement speeds if required.

I hope this helps, Scotty.



Reply - Answer
Well Scotty, I wanted to thank you for sharing your homemade pontoon houseboat photo and plans with us.

There's plenty of folks that are interested in the possibility of building a pontoon boat for those great weekend getaways.



Thinking of Building a Pontoon Houseboat?

* Once you have decided to build a boat, you will be needing some building materials, marine parts, and technical building information.

* Before you start building that boat you should also take a moment to watch some of the best "How To" videos on boat building.



Lastly, hopefully some of our readers and visitors will share and post comments about their homemade pontoon houseboat plans, dreams, and experiences.

Feel free to use the "Click here to post comments." link found near the bottom of this page.

Thanks again for sharing, IAN - from www.all-about-houseboats.com

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Comments for Homemade Pontoon House Boats

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re: the solar panel system
by: Scotty

Yes that is my specs, I forgot to put my name. Originally had only 2 panels but didn't keep up in the winter.

Scotty.

Large houseboat solar system
by: Anonymous

I have a 12 volt system - easiest as the fridge freezer is 12 volt and operates non stop. I have 3 solar panels of 130W each and 4 of N200 12 v batteries.

I have an inverter for the microwave and coffee machine. A 45A load and charge capable solar controller.

This setup keeps up all year round but is only just enpough if I get a few days of nonstop rain/cloud in winter. I think 4 panels and another 2 batteries would be better.

Biggest draw of course is the fridge at 50W. You'd need to have a 60Amp controller. Nice to have never needed a a generator or motors to boost for 5 years - so peaceful compared to the others you hear chugging away at anchor.

Solar System Specs on a Houseboat
by: Anonymous

Would like to learn more about your solar power electrical system. Considering a similar installation on my houseboat. Could you share some of the specs? Located in S. Louisiana near Houma

Thanks, Walt Bumgardner

Large pontoon houseboat
by: Ricky B

My pontoon houseboat is 24 ft. wide and 55 ft. long. Each pontoon is 6 ft. wide and 4 ft. deep, made with 1/4 steel. I have two 140 hp Tohatsu outboards pushing.

This boat weights in a 125,000 lbs. No this is not a misprint 125,000 lbs and top speed is 7 miles per hour. I would have attached a picture, but will not let me. We are lucky in south Louisiana, we houseboat all year round.

Ricky B in Louisiana

Houseboat Septic Plumbing - home made houseboats
by: Anonymous

With an electric toilet, is a blackwater tank necessary? If not, are there alternatives to black water holding tanks?

Building a Trailerable Houseboat - retractable expanding hull
by: Vic

The wife and I are building a trailerable pontoon houseboat, with side expanding / retracting hulls, and it will be trailerable.

The roof also comes down to be more manageable on the road. We are using hdpe plastic foam filled pontoons. We like the recyclable feature.

Hopefully we can make it fully solar powered, with minimal reliance on petroleum (if at all).

Plans for HDPE tubes
by: Scotty

I intend to use 800mm x 19mm thick tubes. I'll put a flat face ,55 degree slope on the front and flat at rear.

I'm going to insert two baffles in the middle to give me an internal black water tank of about 2000 liters - only would usually use 1000 liters max - i.e waterline.

To mount these I could either use HDPE cleats welded to tubes but I think I'll head this way: make an "I" beam out of 10mm alloy plate. The bottom of the beam is curved to suit the curve of the tube.

Just through bolted across the tubes with an internal plate to brace (like a big washer but 100x100x12mm). I beam welded to my floor beams.

Nice Going
by: L. Siopa

Can you please tell me how to use HDPE tubes as floaters, and how to connect the pontoons to the structure. This, of course if you don't mind.
Many thanks any way, I loved the look of your houseboat.

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