These plans provide conceptual information. periodic changes in the national design specifications for wood construction, changes in building materials, snow load variations and the serious impact of deviations from the plans make it imperative that professional services be utilized to tailor these plans for your situation.. The following schedule of standard farm shed plans is a great place to start from when thinking about your own shed needs. we�ve provided quick dimensions and sample farm shed plans to view on our site or print from file.. Construction plans and do not replace the need for competent design assistance in developing safe, legal and well-functioning agricultural building system. the university of arkansas cooperative extension service, the united states department of agriculture and none of the cooperating land-grant universities warranty these plans..