Used I Beams:
2 -- 12" x 5" x 15'2" with flanges so that these two can be bolted together to be a length just over 30'4" cost new $980 plus shipping and tax = $ $2124.14 per check with a beam supplier, my price $1000
1 - 8" x 8" x 120" heavy web new price $342 plus tax my price and this beam is like new $200
1 - 12" x 6.5" x 87.5" $150 my price
1 - 8" x 5" x 49.5" $100 my price