Panelized homes are built in panels – a whole wall, for instance – then each panel is transported to the building site and is constructed into a home.
Typically, panelized homes require more finishing work than modular homes, as the interior finishing work, such as painting, installing cabinetry and stairs, and installing flooring, must be completed on-site.
Factory build-time is still similar to that of modular homes (about 6 to 12 weeks), but on-site build time is longer. It might take a week to construct the panels onsite, then it could take an additional month to complete the interior work, depending on the schedules of the subcontractors.
Total build time can be estimated at 3 to 6 months, give or take, depending on subcontractor schedules.