What does prefabrication mean?
Prefabrication is the practice of making parts of a building, vehicle, or other product in a factory rather than constructing them entirely on site. Components such as wall panels, bathroom units, pipes, and structural frames can be produced under controlled conditions, transported to the site, and assembled more quickly than conventional site-built work. The approach can reduce labor costs, waste, construction time, and weather-related delays, while standardized units may make later repairs or replacement easier. It has become especially prominent in modern housing, commercial buildings, and modular construction, where large sections are completed before installation. The word is primarily technical and commonly appears in discussions of architecture, engineering, manufacturing, and the housing industry. Although prefabrication sometimes carries the informal implication of cheap or basic construction, good prefabricated products can equal conventionally built ones in quality, durability, and design.
nounThe manufacture of building components or other products in a factory, followed by their transport to and assembly at the intended site. The term can also refer more broadly to the use of standardized, factory-made units in construction and manufacturing.
- The practice or technique of manufacturing components in a factory for later transport and assembly.
- The construction or manufacturing industry considered as a whole, especially when organized around standardized factory-made units.
"Prefabrication reduced construction time by allowing bathroom and kitchen units to be fitted out before they reached the site."
"The factory specializes in the prefabrication of wall panels for timber-framed houses."
"Advances in prefabrication have made it possible to complete hotels and hospitals with shorter building schedules."
Rare in general use; the plural may refer to separate instances or systems of factory-made construction.
"The architects compared several prefabrications designed for rapid assembly."
Prefab turns a construction site into an assembly line: specialized components are completed under controlled conditions, then joined together where they are needed.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does prefabrication come from?
Prefabrication was formed in English from the verb “prefabricate,” combining the prefix “pre-” with “fabricate.” “Fabricate” comes from Latin fabricare, a word meaning “to make” or “to fashion,” which is also the source of related English words such as “fabric” and “fabrication.” In the construction industry, the compound developed to describe the production of components in advance of their use on site.
Related word forms
How prefabrication is actually used
The term is neutral and mainly used in construction, engineering, and manufacturing. In architecture, the informal adjective and noun “prefab” are also common and may suggest economical or rapid construction without necessarily implying inferior quality.