MasterFormat, a product of CSI and Construction Specifications Canada, is the organizational standard for specifications, the written instructions for construction, and other information for most commercial and institutional building projects in the U.S. and Canada.

MasterFormat's 2004 edition can cut construction costs because its much expanded content fosters fuller and more accurate specifications, which can reduce costly changes or delays in projects due to incomplete, misplaced, or missing information.

The section numbers and their titles of MasterFormat 2004 are downloadable at no charge from CSI's website at www.csinet.org/masterformat.