16 Divisions refers to the 16 divisions of construction, as defined by the Construction Specifications Institute (CSI)'s MasterFormat. In 2004, MasterFormat was updated and expanded to 50 Divisions. The standard is the most widely used standard for organizing specifications and other written information for commercial and institutional building projects in the U.S. and Canada. It provides a master list of divisions, and section numbers and titles within each division, to follow in organizing information about a facility’s construction requirements and associated activities. Standardizing the presentation of such information improves communication among all parties involved in construction projects.
The following are the sixteen divisions listed in the MasterFormat 1995 Edition.