Does extension have free rabbit hutch plans?
Benton County Oregon small farm issues
I am sorry to share that OSU Extension Service does not have hutch plans available. As you are probably aware, there different design preferences based on your goals, from pet to production (commercial rabbitry). The Extension resources below (including some designs that you can download at no cost) take into account safety for the animal, disease prevention, air flow, handling, cost, etc.
Functional but not fancy.
Colorado State Extension Rabbit Housing Plans
Southern University Research and Extension Rabbit Housing Manual
MSU Homemade Rabbit Cages