These free downloadable plans for a one-car garage are sponsored by the US Department of Agriculture.

One Car Garage Plan MWPS-74101  Free, downloadable plans for a 12'x24' one-car garage. This garage uses 2x4 studs and rafters, and has concrete footings and optional windows and a concrete floor.

 

MWPS.org  The Midwest Plans Service, at Iowa State University, is a publishing cooperative dedicated to disseminating practical and affordable agricultural publications that support the missions of twelve mid-west land-grant universities and the U.S. Department of Agriculture.

 

Their web site makes available 8 1/2" x 11" conceptual plans for practical barns, storage buildings and farm structures. The plans can be helpful in developing building layouts and selecting equipment for various agricultural applications. These are older plans that do not necessarily represent the most current technology or the most recent construction theories. They are not construction plans and do not replace the need for competent design assistance in developing safe, legal, and well-functioning buildings.

Buildings must resist various forces from snow, wind, and use. They also must adhere to local building and zoning codes. A local building inspector, engineer, building supplier, or building contractor can help you determine what is a safe and legal facility for your area.