Looking at container conversion as option for office space in a larger unin sulated workshop.
Top option seems to be spray foam interior with studs to take dry lining an d insulate floor. it fills all the voids in the corrugations but it costs.
A U.S. outfit was offering a container lining kit , that appeared to be som e sort of Structural Insulated Panels, pre cut they simpy loaded rear and s ide walls in , ceiling lining sat on top of walls and floor was layed insul ation, very fast to do. Concerned that leaving the corrugation voids unfill ed creating a moisture or damp trap.
Another vid appeared to be using polystyrene bats bonded to the interior be fore lning with ply, again concerned creating a load of sealed voids in the corrugations.
Seen a few online where they have studded the interior and then filled with rockwool, before ply lining over.It`s lowest cost but can`t help but feel may get condenstaion on inside of corrugations soaking the rockwool over ti me.
Any words from the wise, including just wear the cost and buy an actual Pot acabin?