In ECADE construction system partnerships between business units and their suppliers work together naturally and quickly to eliminate waste before it is generated by progressively assessing all their activities.

One of the most critical principles of lean is the elimination of waste and many of the other principles revolve around this concept.

There are several basic types of waste in lean construction and the most important are: waste of waiting, waste of unnecessary motion and waste of production of defects. The idea of waste elimination is to review all areas in the organization, determine where the non-value added work is and reduce or eliminate it.