"Tom Gardner" wrote in message
.com...
I have a 100 + year old building that will be coming down. It has 10"x10"
posts on 8'x12' centers...hundreds of them. I don't know what species but
they are hard as rock. Is it worth trying to find out what they are, find
a market and salvage these?

There are many businesses that recycle timbers like these. Some of the
timber frame house companies do this or work with compinies that do. Just
about any kind of old big wood will be valuable to somebody. Many luxury
homes claim recycled timbers like these.