Visit http://www.convergencetraining.com/blocking-and-cribbing-for-heavy-equipment.html to view the full video and purchase access to our other Health & Safety courses. Blocking and cribbing is a phrase which describes a variety of procedures used to stabilize heavy equipment, or large components of heavy equipment, during maintenance. Blocking refers to any of a number of methods for securing a machine, or part of a machine, while it is being worked on. Cribbing refers to the technique of stacking a group of uniform blocks to create a temporary, but sturdy, elevated structure capable of supporting a heavy load. This course describes equipment and guidelines for successful blocking and cribbing operations.