So where i work we manufacture ductwork products. We get about 500,000 pounds of steel coils in 2 times a day. All coild are about 5,000 pounds and come on hard wood skids 4x4 with oak slats on top. Really dry. I am able to have as much as i can take since they pay to have them taken away weekly. They bust them up so they are in 4 foot or 5 foot pieces. Is it worth using since there are nails in it id have to dig out. Also we make our own oak shipping skids and they cut all the wood most are 10 inch pieces. No nails. I would just suppliment my split wood with the skid scraps.