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May 21st, 2012, 03:09 PM  #1 
Newbie Joined: May 2012 Posts: 2 Thanks: 0  Buoyancy / Load capacity of a barrel... plz help!
Hi, First, this is a short explanation as to why I need some help. I'm building a 20 ft x 12ft pontoon boat to be used on a lake. It will float by use of closed polyethylene barrels with with normal air (NOT compressed). The barrels will be held in place by a wooden deck. On top of this deck, I'm building a 12 ft x 8 ft wooden cabin, with door, windows, and a roof that doubles as a deck. Additional major weight factors include the motor, anchor, batteries, small canoe, fresh water storage, people, supplies, etc. But before I get to drawing and building I need an answer to the most important question: how much weight can my barrels support? Right now, I'm considering 2 sizes: 55 Gallon Polyethylene Barrel 34 3/4 (in) height 23 1/4 (in) diameter 23 (lbs) weight This is a straight barrel (NO tapering) Or 30 Gallon Polyethylene Barrel 34 3/4 (in) height 23 1/4 (in) diameter 23 (lbs) weight This is a straight barrel (NO tapering) I would much prefer using only the 30 Gallon size, however, that might not be feasible. Anyway, hope someone can help me out determining the load bearing capacity of the above barrels on water. Thanks 
May 21st, 2012, 03:14 PM  #2 
Newbie Joined: May 2012 Posts: 2 Thanks: 0  Re: Buoyancy / Load capacity of a barrel... plz help!
DIMENSIONS OF 30 GALLON BARREL WRONG. The specs of the 30 gallon barrel are: 31 (in) height 19 (in) length 19 (in) diameter 13 (lbs) weight 
May 22nd, 2012, 01:33 AM  #3  
Global Moderator Joined: Dec 2006 Posts: 20,747 Thanks: 2133  Quote:
Is the revised specification for the 30 gallon barrels correct? I don't understand what is meant by the length of a barrel, as distinct from its height.  

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