This online Safe Lifting course provides the information employees need to protect their backs when they are lifting and carrying. Lifting and carrying. It's something we do all the time, and we normally don't think twice about it. But there are good reasons to consider how we lift and carry things, because there are right ways and wrong ways to do it. The materials on a construction site can often be heavy and oddly shaped, and what you don't know about lifting them correctly can hurt you.