Kit houses in North America

Kit houses, also known as mill-cut houses, pre-cut houses, ready-cut houses, mail order homes, or catalog homes, were a type of housing that was popular in the United States and Canada in the first half of the 20th century. Kit house manufacturers sold houses in many different plans and styles, from simple bungalows to imposing Colonials, and supplied at a fixed price all materials needed for construction of a particular house, but typically excluding brick, concrete, or masonry (such as would be needed for laying a foundation, which the customer would have to arrange to have done locally).

Stick-built, balloon-framed kit houses were built as permanent, not temporary structures, as the manager of the Sears, Roebuck lumber department explained to a United States Senate committee in 1919:

A ready-cut house should not be confused with a sectional-portable house, which can be taken down and moved by being unbolted. A ready-cut house is a permanent house and the method of its construction is not different from any other frame house where the lumber is framed (or cut to its proper length, notched, etc.), by hand by carpenters.

Unlike modular homes, which are built in sections at a factory, in a kit house every separate piece of lumber was shipped already numbered and cut to fit its particular place in the house, thus eliminating the need for measuring and cutting, and likewise the waste of time (especially in the days before power tools) and of materials. Thus, kit home manufacturers claimed to save the customer as much as 30 to 40 percent over traditional building methods. This description by researcher Dale Wolicki of kit house manufacture by the Gordon-Van Tine Company was typical of other kit house companies' efforts as well:

All designs were standardized to maximize efficiency and reduce waste in materials and labor. Lumber and hardware were purchased in bulk. The factories had skilled employees and special machines to cut difficult pieces such as rafters and staircases. Lumber was pre-cut to length, guaranteed to fit, ready to nail, and labeled for easy assembly. Floor joists and bridging, sub-flooring, finished flooring, studs, rafters, sheathing, clapboards, shingles, stucco, plaster or drywall, columns, railings, doors and windows, hardware, nails, and paint for two exterior coats were included in the order. Plumbing, electrical, and heating systems were available for an additional charge. Although the lumber and hardware were standardized, the designs were not and buyers were encouraged to personalize their order. Many models had two or three floor plans, while the exterior could be clapboards, shingles, stucco, or framed for brick. Walls, windows, and doors could be moved, added or eliminated. Porches, sun rooms, flower boxes, trellises, balconies, built-in cabinets, and a variety of door and sash patterns were available at an additional charge.

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