C Schomer wrote:
Cinder block aren't even good for walls. They are porous and weak and they literally explode when they get to their compression limit when used for jack stands. So do concrete blocks. People have died from using those! Use jack stands or cribbing. Craig
I wasn't aware they even made cinder blocks any more! They used to after ww2 up in this area but not in a long time since then have they made them.many coal fired units up here went to gas . Thus not many cinders!
Concrete blocks used properly will support a lot of weight ! JMHO Jb!