Corrugated Plastic Sheet LinksMy Coroplast
page includes links to manufacturers and where to purchase corrugated platic sheets.
Oru kayak, see further down for more info:
As simple as it gets. A coroplast sheet with the sides folded up make a quick boat.Rainbow Family Gathering made these boats.
Folding and Take Apart Boats
Ultra light boat building
Skin on Frame Boats
such as Kayaks are very light
Traditional boats of the fishing grounds
This information is for general knowledge. Using non tested materials can be dangerous. If you build a coroplast boat be careful and make sure you test and use your boat in safe waters with appropriate personal flotation devices and backup help.
Coroplast is a trade name for Corrugated plastic sheet made in many colours and thicknesses. Coroplast is a US company. In other parts of the world other trade names might be better known. Examples are Plaskolite, Corplast, Coroboard, Corruboard, Polyflute, Intepro, Correx, Twinplast, Impraboard, Alylux are other tradenames. If you are looking for a local supplier Googling these alternatives might be helpful.
I have not personally tested these boats. I can't say if they are safe. These are experiments by people who like to play and design things. Be careful already!