Sometimes a house fits better on a lot if the floor plan is flipped. As such, mirror reverse plans can be a helpful tool. Mirror reverse plans are a mirrored image of the house plan, with the text appearing backwards, just as if you were looking in a mirror. Although the dimensions and lettering are not readable, mirror reverse plans serve as a visual aid showing the floor plan of the home the way you plan to build it and also showing correct door swings. You can't get a building permit with mirror reverse plans, so when your order, only order one or two sets with the mirror reverse option and order the rest as the original plan.