The Construction Standard

# The Construction Standard > Licensed access to CSI Dynamic Standards—MasterFormat, UniFormat, and OmniClass—as a connected, edition-aware system built for the speed of construction work. The Construction Standard provides licensed digital access to CSI Dynamic Standards (CDS), including MasterFormat, UniFormat, and OmniClass. These classification systems are used across the construction industry for specifications, cost estimation, BIM classification, and facility management. ## Core Pages - [Home](https://theconstructionstandard.com/) - [Pricing](https://theconstructionstandard.com/pricing) - [Sign Up](https://theconstructionstandard.com/signup) - [About Us](https://theconstructionstandard.com/about-us) ## CSI Standards - [MasterFormat](https://theconstructionstandard.com/masterformat): The 50-division numbering system for organizing construction specifications, cost data, and project documentation. - [UniFormat](https://theconstructionstandard.com/uniformat): A classification system organized by building elements and assemblies, used for preliminary cost estimation and building systems analysis. - [OmniClass](https://theconstructionstandard.com/omniclass): A comprehensive classification system for the entire built environment, used in BIM, facility management, and asset classification. ## Professional Audiences - [For Architects](https://theconstructionstandard.com/architects) - [For Specifiers](https://theconstructionstandard.com/specifiers) - [For Building Engineers](https://theconstructionstandard.com/building-engineers) - [For Contractors](https://theconstructionstandard.com/contractors) - [For Owners](https://theconstructionstandard.com/owners) - [For Software Teams](https://theconstructionstandard.com/software) - [For Building Product Professionals](https://theconstructionstandard.com/building-product-professionals) ## High-Value Resources - [CSI MasterFormat Download](https://theconstructionstandard.com/csi-masterformat-download) - [UniForma