Looking to build a campfire extra large griddle / teppan. Has anyone done it before?

[kbanse]

I looked at the Camp Chef Professional Fry Griddle that is about 37" x 16" which is about the size i would like. Unfortunately that one would end up costing about $200.

Just wondering if anyone has ever made one by purchasing a metal sheet.

It would only be used over an open campfire so would need to be thick enough to prevent warping I would assume.

What I am interested in finding out is what kind of metal would work best for the price / weight etc.

Stainless steel?
Iron?

Any thoughts would be appreciated.

[NVJims]

A piece of 3/8 inch carbon steel plate 18x36 will weigh about 70 pounds and will have good heat distribution and will last you forever. It will need to be cleaned and seasoned.

[Sid Post]

You could always go to a sheet metal shop and have them bend one in a press to match what you want. When I looked at doing this on a smaller size, it easily cost more then buying on already made.