I have a variety of THICK PLASTIC barrels that can be used to build a raft or lake/dugout platform or pier .
Sizes available are 15 , 20 , 30 , and 55 gallon . EACH SIZE IS PRICED SEPARATELY ( SEE BELOW )

Google states " The imperial gallon of water is defined as 10.02 pounds " .

Each barrel displaces ( floats ) almost the weight of water relative to its volume.

SEVERAL people have already used these to make the items listed above as well as to float BOAT LIFTS AND PIERS in & out of the water .

Prices are:
15 gal-----$15 ;
20 gal-----$20 ;
30 gal-----$35 ;
55 gal-----$50 ( if available ) .

I have experience with these and recommend the use of 15 & 20 gal. rather than the larger sizes , but will sell you whichever available size you want .

It will also speed things up if you tell me WHAT SIZE(S) & HOW MANY you want , as neither of us want to waste time with 20 unnecessary emails .