Uniformat
Reference data and engineering information about uniformat for miscellaneous applications.
uniformat
Overview
Engineering reference data for Uniformat in miscellaneous.
Key Formulas
Unit Conversion
Multiply by conversion factor.
Linear Interpolation
Estimate between two known points.
Percentage
Part as fraction of whole.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Input value | — | |
| Output value | — | |
| Conversion factor | — |
UNIFORMAT II Hierarchical Structure
The UNIFORMAT system organizes building elements into a three-level hierarchical classification. This structure is fundamental for creating standardized preliminary designs, cost estimates, and BIM element categorization.
33 rows
Code | Level | Title / Description |
|---|---|---|
| A | Level 1 | Substructure |
| A10 | Level 2 | Foundations |
| A20 | Level 2 | Basement Constructions |
| B | Level 1 | Shell |
| B10 | Level 2 | Superstructure |
| B20 | Level 2 | Exterior Enclosure |
| B30 | Level 2 | Roofing |
| C | Level 1 | Interiors |
| C10 | Level 2 | Interior Construction |
| C20 | Level 2 | Stairs |
| C30 | Level 2 | Roofing |
| D | Level 1 | Services |
| D10 | Level 2 | Conveying Systems |
| D20 | Level 2 | Plumbing |
| D30 | Level 2 | Heating, Ventilating, & Air Conditioning (HVAC) |
| D40 | Level 2 | Fire Protecting Systems |
| D50 | Level 2 | Electrical Systems |
| E | Level 1 | Equipment & Furnishings |
| E10 | Level 2 | Equipment |
| E20 | Level 2 | Furnishings |
| F | Level 1 | Special Construction & Demolition |
| F10 | Level 2 | Special Construction |
| F20 | Level 2 | Selective Demolition |
| G | Level 1 | Building Sitework |
| G10 | Level 2 | Site Preparation |
| G20 | Level 2 | Site Improvements |
| G30 | Level 2 | Site Civil/Mechanical Utilities |
| G40 | Level 2 | Site Electrical Utilities |
| G90 | Level 2 | Other Site Construction |
| Z | Level 1 | General |
| Z10 | Level 2 | General Requirements |
| Z20 | Level 2 | Bidding Requirements, Contract Forms |
| Z90 | Level 2 | Project Cost Estimate |
Source: ASTM International
Purpose and Usage
This standardized classification is used to:
- Organize BIM Models: Assign functional element codes to 3D model components for consistent data extraction.
- Structure Preliminary Estimates: Create early-stage cost models aligned with the building's physical systems.
- Facilitate Life-Cycle Analysis: Link initial design elements to long-term operational, maintenance, and replacement costs.
- Standardize Documentation: Ensure project descriptions, specifications, and facilities management data use a common language.
The corresponding calculation template helps structure cost data according to this hierarchy.