MasterFormat
The recognized industry standard for more than 40 years. Now online.
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Transition Guide

Still working with MasterFormat 95 numbers? Plug in your numbers to exchange them for numbers from the most current edition. Review numbering changes to the new edition.

Purchase MasterFormat

Buy a copy of the MasterFormat 2014 publication. Canadian customers may purchase from the Construction Specifications Canada.

Propose Revisions

Submit a proposal for your own revisions, or check in for real-time updates to MasterFormat in a chronological revisions report.
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