Cutting Metal with an Angle Grinder

[JDuke]

Shipping containers walls are 2mm thick. Containers walls cut very well with a 4 1/2 inch grinder. You will go thru quite a few cut off discs , 0.045 inch thick work very well. I have done half a dozen windows and doors. We always welded in a angle iron angle frame to the container.  Select your window size so the window goes from outside corrugation to outside corrugation. We installed a 3 x 3 x 3/16 angle for windows and 3 x 5 for doors.

Greg

Looks like this is the answer you’re looking for.  
It can certainly be done with 4.5 angle grinder maybe quicker in other ways but certainly can be done and probably very well with some planning.

[Grey Mountain]

Thank you for all the input and suggestions. Much appreciated.
I have a friend from church who has a portable rig including a cutting torch. He will do the cuts for me.