Wooden Cribbing Basics

I was wandering around the Internet and ran across a Canadian Public Safety site that has some good basic information about wooden cribbing.   The information below is basic 101 cribbing but it never hurts to review the basics.

I decided to be fair I should look and see what the United States government has available on the Internet. Below is the FEMA National US&R Response System Structural Collapse Technician Course – Student Manual.