Check on some of the demolition companies in your area,some salvage beams and columns and sell for 1 1/2 times the price of there weight,I bought a 24' 10" beam for $200 delivered man was I happy saved a bunch.
Damit. I had over 75' of it here in Grand Rapids. Used it for a project in 12.5' lengths. It's .5" thickness. Just cut it up for scrap. Next time call me, you'd be suprised what I can find or already have laying around our shop yard collecting rust.