Greiner Buildings, Inc.

Greiner Buildings is a post-frame construction company serving Iowa and Illinois, with this location in Cedar Rapids, IA and a main office in Washington, Iowa. The company reports more than 35 years in business, dating to the 1980s. Its distinguishing structural feature is keeping design, structural engineering, material delivery, and project coordination in-house rather than outsourcing, with a single point of contact through the build.

Customers can also model their building in the company's 3D design tool before committing. The product range is broad: residential work includes hobby shops, garages, and the trademarked SHOME, a shop and home combination that overlaps directly with barndominium living. Agricultural work covers machine sheds, cattle barns, horse barns, and insulated shops.

Commercial projects include event buildings, aircraft hangars, storage units, athletic facilities, and municipal buildings, and the company also erects pre-engineered metal buildings. Financing options are available, though terms are not published on the site. Greiner does not name steel suppliers or kit brands, and it does not state a strict shell versus turnkey split, so buyers should confirm finish-out scope for a SHOME or barndominium project.

For eastern Iowa buyers who want engineering and construction under 1 roof, Greiner is a substantial regional operation.