cardboard was in so we can build up our house build upand other stuff
you just cut a ship from cardboard.
How do you build a cardboard Eiffel Tower?
you cut it out and attach it
you use cardboard or glue or you can buy them
Use a cardboard box.
There are many excellent sites on the internet with step by step instructions on how to build things out of cardboard. The problem with your question is that you don't state whether you want a full size boat that will float on water, or a cardboard ship play house, or a table size model ship. Without that information, the best advice I can give you is to type How to build a cardboard ship into your search box, and choose the site that will be the most help.
first you get a cardboard box then you cut a hole in the middle then you put all the things that u want to put in.
One might want to build a cardboard box for a variety of reasons. Children may want a pretend home to play with, or it could be used as a prop in a play.
u go to the box dimension then u go to the box barrel dimension. find your way by going into each barrel and succeed winning the puzzle.
10 meters of wire
You could sandwich layers of cardboard vertically and carve it in the shape of a chair or bench.