BuildSite Data Format

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Numbers and titles used for the organization of product and submittal data on BuildSite and are from MasterFormat®. MasterFormat is copyright © 2022 The Construction Specifications Institute, Inc. (CSI). The trademark MASTERFORMAT® and the copyrighted MasterFormat work are used under license from CSI (

In some cases, BuildSite has extended MasterFormat numbers and titles for additional clarity. These category extensions are denoted by additional decimals following the MasterFormat number.

BuildSite and customers use MasterFormat to name sections in submittal package forms so they match the specifications. We strongly recommend using it.