"JamesgangNC"  wrote in message
news

 Looks like you can get sched 40 pvc up to 16" in diameter in 20 ft
 lengths. I was only able to find wholesale skid pricing, not retail.  It
 worked out to individual prices, all 20 ft lengths:
 10" = $8.20 each skid qty 220
 12" = $23.15 each skid qty 120
 14" = $54.68 each skid qty 60
 16" = $71.50 each skid qty 60
 You could probably build a full size pontoon with the bigger sizes.  Only
 trouble is that skid is about a ton of pipe.  Is there a uv issue with
 pvc? Guess you could paint it.
 "Ed Edelenbos"  wrote in message
 ...
 dh@. wrote in message
 ...
 On 12 Sep 2005 14:03:34 -0700,  wrote:
If it's for a kayak or canoe you may look up sponsons.
Sponsons have become a nasty word in the kayak news groups because
there were some safety accusations made concerning their lack of use.
That or you could make something up with PVC pipe and end caps.
( The latter is great for Hiding guns in. (Water tight and tough should
you want to burry them : )).
    I'm looking for something more about this size:
 http://www.islander-pontoon-boats.com/hydro-bike.html
 Maybe PVC would work...
 I'd like to hear of what you might find (or what anyone might know about
 pricing for 12"d pipe.)  A quick calculation says that a 10 foot section
 would be (roughly) good for 500 lbs at full submersion.  A pair would be
 good for 500 lbs at half submersion...  I couldn't find the weight per
 foot of the pipe itself.  If it is cost effective, I could see a project
 or 2 that it would be perfect for.
 Ed
Go to an irrigation supply company.