Is there anything that I need to consider when building a pontoon boat?

Anything as far as bouyancy? Can I have too much bouyancy? I am planning on using 55 gallon plastic drums filled with expanding foam.

6 Comments so far

  1. GSXRRider on April 29th, 2010

    Consider buying one instead huckleberry

  2. mark t on April 29th, 2010

    Stability, strength, seaworthiness, power, hydrodynamics. How are you going to attach plastic drums together?

  3. junkman on April 29th, 2010

    Are you going to put a motor on this ? more than a 5HP or trolling motor ? sounds like a lawsuit waiting to happen,,,

  4. callthebyrds on April 29th, 2010

    there is more to building a pontoon boat than
    floating a piece of plywood accross the lake
    for the cost you will be putting into this you can
    buy a used pontoon boat even if you have to rebuild it. get one with numbers and tubes that at least are airo dinamic and wont come apart
    on the lake. for a pier yes for a boat no.
    visit http://www.discoverboating.com for info.
    and http://www.outdoorfibber.com forum

  5. aclsal on April 29th, 2010

    If you are doing this while spending less money. Try filling the drums with plastic 2 liter soda bottles. Or the smaller ones. These can be had for free. Maybe you can also find some old house doors you can use for the floor. Enjoy your boat. Please spend some money on safety stuff.

  6. iamjohn on April 29th, 2010

    Plastic barrels can not be fastened together satisfactorily because of the flexible nature of plastic. Pontoons built from steel barrels must be welded together because the force of the pontoon going through the water will cause any bolts to tear out through the holes.
    A better choice would be find a military salvage place and pick up a pair of old aircraft drop tanks. They are all one piece and aerodynamically shaped already. I have seen several pontoon boat built using those.

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