how to cut a piece of 6" thick 6' by 2' piece of foam into a 3" thick?

Question

anyone know of a way to cut a 6 feet by 2 feet piece of foam
6 inches thick into 3 inches thick

Answer 1

A hot wire foam cutter is the best way to cut it:

Below are some websites on how to build one:

http://www.techlib.com/hobby/hotwire_foam_cutter.htm

http://www.hhhh.org/~joeboy/resources/hotwire_foam_cutter/hotwire_foam_cutter.html

http://www.vatsaas.org/rtv/construction/hotwirecutter.aspx

Below is a websites that sells some:

http://hotwirefoamfactory.com/home.php?cat=103

A hot wire foam cutter is the way the foam companies normally cut their foam, especially for soft foam.

Answer 2

Get a piece of thin piano or guitar wire about 30" long.
Solder onto each end some copper wire.
Stretch the Guitar string so that is is taut and 3" above the surface of a table.
Hook each copper lead opposite terminals on a large battery (Lantern, car, etc.)
feed the foam sheet through the hot wire.

Answer 3

An electric knife is a good tool for cutting foam. But easier to buy the correct thickness.

Answer 4

Lots of ways with a utility knife, but you won't like the results. By a piece the thickness you want, it isn't very expensive.

Answer 5

find someone with a table saw and have them do it they might charge you but you could probably get it done if you bought someones lunch. find a carpenter the edges will be alot better than what others have suggested. i insulated my garage door with styrofoam and used this technique.

Answer 6

Buy the sheets in the size you require, it will be easy and a lot less mess!

Answer 7

Electric kitchen knife works great