I am building a workshop in a semi residential area. For security reasons, I am minimizing the number and placement of windows. To avoid a slab sided appearance, I would like to build a set of false windows to bracket the front door. These would not penetrate the wall itself but rather sit outside the exterior sheathing. I have seen windows like this framed up to look like windows with the shutters closed. Have any of you built one that either has no shutters or with the shutter open? How did you do it?