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The North America off-site construction market size was valued at $49,460.1 million in 2021, and is projected to reach $80,851.3 million by 2031, registering a CAGR of 4.9% from 2022 to 2031. [9] In May 2022, the Cree Nation communities in Canada received $17.4 million to deploy modular housing.
Construction of a prefabricated modular home (see also time-lapse video)Prefabricated homes, often referred to as prefab homes or simply prefabs, are specialist dwelling types of prefabricated building, which are manufactured off-site in advance, usually in standard sections that can be easily shipped and assembled.
Both types of homes - manufactured and modular - are commonly referred to as factory-built housing, but they are not identical. Modular homes are built to International Residential Code (IRC) code. Modular homes can be transported on flatbed trucks rather than being towed, and can lack axles and an automotive-type frame.
Modular construction is still not considered an entirely safe alternative. However, it does reduce accidents and fatalities by a significant amount. Especially in the manufacturing process of a project. 48.1% of all accidents during on-site construction were fall-related, while only 9.1% of the accidents at manufacturing plants were from falls. [6]
Modular home in Vermont. Modular homes are designed to be stronger than traditional homes by, for example, replacing nails with screws, adding glue to joints, and using 8–10% more lumber than conventional housing. [31] This is to help the modules maintain their structural integrity as they are transported on trucks to the construction site.
Previously, units had been eight feet or fewer in width, but in 1956, the 10-foot (3.0 m) wide home ("ten-wide") was introduced, along with the new term "mobile home". [2] The homes were given a rectangular shape, made from pre-painted aluminum panels, rather than the streamlined shape of travel trailers, which were usually painted after assembly.
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Modular buildings (and also modular homes) generally consist of universal parts (or modules) that are manufactured in a factory and then shipped to a build site where they are assembled into a variety of arrangements. [2] Modular buildings can be added to or reduced in size by adding or removing certain components.