For a used 20-footer in good condition, the cost can range anywhere from $1,400 to $2,800. A 40 foot shipping container will cost $3,500 to $4,500. Depending on where it is bought, some containers come with building kits and plans for personal customization.his can run the whole bill up to $15,000 or more. On the other hand, those who are experienced with construction can completely finish and furnish a home of steel for less than $10,000. Some handy folks even manage to do it for less than $4,000! Now, more than likely the container will need to be transported to you.