Shipwell – Helping every business ship freight as well as Amazon
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This is an important differentiator. Many other freight network startups have failed because they couldn't get the supply/demand flywheel turning fast enough. Integrating with existing carrier networks means you won't undercut them on price, but you can compete on convenience for shippers.
(Not endorsing Fedex, just an example. Lots of other companies do this too.)
You could also consider hiring a moving company.
No, I've shipped pallets of freight before, using Fedex among others. The issue is that I've got one of these https://en.wikipedia.org/wiki/Twenty-foot_equivalent_unit, and I want to get it across the country full of stuff.
It's possible Fedex has provisions to do this if paid enough, but I think I'm looking for something more specialized. Like this, but I'm looking for more specific recommendations: http://rapidexpressfreight.com/freight-services/rapid-expres...
You might have difficulty shipping a standard 20 or 40' container by rail within the US unless it has a standard set of ownership markings on it.