Because of a controlled environment and efficient assembly line process, mobile homes are able to be constructed quickly and at a relatively low cost. The first stage involves the builder ordering all necessary materials—usually in bulk.
Next, the steel frame is constructed, while will then support the flooring. The floor joists are installed, and then the floor is sheeted with plywood and screwed down. Sometimes, the floors are also glued to avoid squeaks.
The walls are then installed. Often, construction teams will build the walls in a separate area, and then attach the walls to the newly installed floor system. Once the walls are attached, the construction team will complete the wiring, plumbing, and ducting.
Then, the roof is attached to the new mobile home. The roof framework is first installed, then the plywood sheathing, tar paper, and shingles. Typically, construction teams consist of around twenty stations, where trained professionals focus on one specific task.
After the roof is installed, the sheetrock is added—followed by the kitchen cabinets and fixtures. Next, the windows and siding are installed.
After all the requested options, such as specific flooring and appliances, are installed, a walk-through is conducted to verify all expectations were met.
Manufactured homes can cost an average of $62,600, compared with $272,200 for a single-family site-built home [source: U.S. Census Bureau, U.S. Census Bureau]. ... Not only are manufactured homes cheaper to own than site-built homes, they're cheaper to build and maintain.
The difference between modular and manufactured homes is often in the permanence. For instance modular homesare placed on a permanent foundation; whereas trailers, or manufactured homes are built on a steel chassis with wheels attached. This is so the trailer can be moved or towed.
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