I have 14 used Z purlins, 30 ft long. 10 used Z purlins, 22 ft long $2.00/ft. I have between 1800 and 2000 sq ft good used, heavy r-panel metal roofing. $900 for all r-panel. I have several 4 in steel posts, 1/4 inch wall for $4.00/ft. I have 4 6 in steel posts, 1/4 inch wall for $8.00/ft, around 16 ft long. For questions, call Sonny at or.