Blueprints for Housing and Equipment Plans
Blueprints and Housing/Equipment Plans (free PDFs).
Courtesy of Colorado State University
They can be ordered if you need a hard copy and have no printing capability or need the full plan. Most are complete one page PDF docs but some have multiple pages. The additional pages can be obtained from CSU.
Note that, as title says, they are blueprints(designs) and not instructional beyond that.
It is a fairly comprehensive list for farmers/ranchers:
Barns and corrals
Food ( e.g.,Fruit & Vegetable Storage Room )
Housing (e.g., Storm Cellar )
Outdoor (e.g., BBQ Pit, Playground, ... )
Pasture and Range
Each has several to many designs covering a wide range of related items.
E.g., there are at least 25 different blueprints for "greenhouses" which include hotbeds, cold frames, large GH and small GH, GH truss, Heating And Ventilating System,..., even GH benches.
No warranty, implied or otherwise, of course!