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Guides
MasterFormat 2026 Introduction and Applications Guide

A downloadable guide for understanding the latest MasterFormat edition and practical applications.

Guides
Introduction to MasterFormat

A foundational reference for learning how MasterFormat organizes construction information.

Guides
Using MasterFormat

Guidance for applying MasterFormat in project, documentation, and standards workflows.

Guides
MasterFormat Relationship to Other Standards

Learn how MasterFormat relates to other classification systems and project workflows.

FAQs
What does a CSI Dynamic Standards License cover?

A license provides authorized, always-current access to 1995 through 2026 versions of MasterFormat®, UniFormat®, and OmniClass®. The platform includes tools to help navigate and apply the st...

FAQs
How do I know if I need a license?

A license is required when CSI standards are used in revenue-generating professional services. This applies to architects, engineers, contractors, owners, manufacturers, and software platfor...

The Construction Standard is the authorized source for commercial access to MasterFormat®, UniFormat®, and OmniClass®.Our mission is to help every project team work from the same trusted structure and use it more effectively in everyday work.

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Get Started with CSI Dynamic Standards

The Construction Standard is the authorized source for commercial access to MasterFormat®, UniFormat®, and OmniClass®.

Create an account or contact sales to find the right licensing path for your organization.