I'd really like to find an easy, cheap way to make a fun boat for a small pond or something.

I've seen a few cardboard boat instructables, but I want to find one that will really last on the long run. Help?

sort by: active | newest | oldest

I built a very simple, small boat for a physics project:


If you ignore all the frills, its essentially just a plywood box. I suppose that with a good coat of paint and TLC, you could make any boat last in the long run.

makesomeso3 years ago

modify an RC car into boat. I did that for my brother, my dad bought him a car, later he lost his interest playng with it. so i modify that car into boat by removing the body and replacing wheel with propellers and adding a floating base on the bottom.

KentsOkay7 years ago
As a builder of cardboard boats, I can tell you know they really aren't that great for actual use as a boat. I have a 15ft canoe i built for a cardboard boat race, I've used it twice now. Simply put, it is massive. A hundred or so pounds, many, many hours in construction. Everything else sinks. Build something from plywood, or even try to find a used canoe on craigslist.
lol how did I know I would Find you commenting here Kent?
acidbass5 years ago
I saw an instruct able not long ago for a durable duct tape one that lasted pretty long.
Denger5 years ago
Check out The American Boy's Handy Book (1890) by Dan Beard.  It is still in print, and any library worth its salt should have it on the shelf.  Chapter 12 is titled "Home-Made Boats".  There's a Man-Friday, a Crusoe raft design, even a simple houseboat.  These are time-tested, low tech, low cost designs which have been built by countless Boy Scouts over the course of the last century. 

The best part?  Despite the development of PVC, fiberglass and carbon composites, wood still floats!  Scrap wood is far cheaper than any of the aforementioned materials.

Have fun, and Be Safe!
Luziviech7 years ago
found a kinda similar float sum years ago: http://www.forums9.ch/wasser/pet-flasche/ it's german, but self-explaining; several boards with 1,5L-gallons, whose buttons are screwed on the boards; the boards are stuck together usin hinges, that way it can be varied in size.
Sean C.7 years ago

I've been trying to build a boat myself. Here's the URL for a plywood canoe:


This is a very detailed plan, but, like almost all of the boat plans I've come across, it has one fatal flaw: They're not really cheap.

A lot of boat plans call for fiberglass tape on the seams, coated with epoxy resin. This creates a very strong bond, but also a very expensive one. The approximate cost of the epoxy resin alone is over $100 (USD). The fiberglass tape costs about $40-$50. Moreover, I don't know of any hardware store that sells these necessary items in the quantity you need. The estimated cost of the plan above is about $300 USD, plus about 2 weeks of time.

However, there is some good news, you probably could use some sort of caulking or Gorilla Glue instead of epoxy resin. I'm not really sure, but in my opinion it's worth a try if it knocks of $100 in cost. Also, Gorilla Glue is easily available at any hardware store.

If time is not an issue, here's a website that has lots of free boat plans:

www.absolutelyfreeplans.com/Boat Plans/boat_plans.htm

Hope this helps!
I don't know what exactly you're looking for, but TimAnderson has a neat Instructables: Cozy Boat.
rickharris8 years ago
Re-design8 years ago
nfarrow8 years ago
Go buy a big piece of foam(Floating Dock Foam)
frollard8 years ago
Growing up a recycling project of a friend and her dad was to use 4 Liter (1 gallon) milk jugs glued shut as pontoons (about 30 of them) to make a raft. Simply make a frame out of lumber and attach the jugs with dowels through the handles. Practical and environmental. When you get tired of it, recycle the jugs!