Software to desgn a metal box for amplifier

Could anyone tell me a software like this, i don't want it very hard like autoCAD or something like this

Pls post a link or something, Thank you

easy, powerful and FREE!!!

get SKETCHUP over at Google.com
GREAT program. designed lots of stuff with it.
Very easy, lots of support. Can design in 2D or 3D
AND IT'S FREE!!!!

emachineshop (https://www.emachineshop.com/) provide a free cad program that is fairly easy to use.

It is intended to be used for designing and ordering parts to then be fabricated by them in the USA (it works out expensive for shipping elsewhere).
But you can just draw your design and print it or export it in Autocad format (2D only) to another cad program.

Heres a pic of sketchup file

I downloaded this pic from Sketchup 3D warehouse
just a sample of what can be done within sketchup.
yes other cad prgs are good but learning curve is long on most.