In architecture, a blank door or blank window is a depression in a wall of the size of a door or window, either for symmetrical effect, or for the more convenient insertion of a door or window at a future time, should it be needed. Found on http://www.probertencyclopaedia.com/browse/TB.HTM
In architecture, a blank door or blank window is a depression in a wall of the size of a door or window, either for symmetrical effect, or for the more convenient insertion of a door or window at a future time, should it be needed.