Acronyms & Abbreviations

A comprehensive A–Z database of construction acronyms and abbreviations with clear, plain-language definitions.

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147+ Acronyms & Abbreviations

AcronymDefinition
3DThree-Dimensional (model)
4D3D Model plus Schedule
5D4D Model plus Cost
ACRAnticipated Cost Report
ADAAmericans with Disabilities Act
AFFAbove Finished Floor
AGLAbove Ground Level
AHJAuthority Having Jurisdiction
AIAAmerican Institute of Architects
ANSIAmerican National Standards Institute
AODAAccessibility for Ontarians with Disabilities Act
AORArchitect of Record
APCApproved Product Conformance
ARBArchitectural Review Board
ASDAllowable Stress Design

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