What is the difference between Uniformat and Masterformat?

Understanding the distinction between Uniformat and Masterformat is essential for managing evolving project costs. This dual-classification support allows you to start with a high level, systems-based Uniformat structure for conceptual planning and transition to a detailed Masterformat structure as the project matures. By leveraging both standards, users can streamline setup and maintain professional alignment across every phase of the construction lifecycle.

Uniformat is a systems-based classification that organizes building elements into functional groups called assemblies.

• Primary Use: Early-stage or Conceptual Estimating.

• Organization: Grouped by "What it does".

• Example: An "Exterior Wall" assembly includes the studs, insulation, and cladding under one functional code.

• The Benefit: It allows you to estimate costs based on functional units before you have finalized specific material choices.

Masterformat is a material based classification that organizes building information by specific work results and trades.

• Primary Use: Detailed Estimating, Bidding, and Procurement.

• Organization: Grouped by "What it is".

• Example: That same exterior wall is broken down into component parts: Division 04 for Masonry, Division 05 for Metal Studs, and Division 07 for Thermal Insulation.

• The Benefit: It aligns the estimate with construction drawings and legal specifications, making it easier for subcontractors to bid on specific scopes of work.