CAD Drawing of the section plan details for windows and door mock-up units. This DWG file having the drawing details of the single door and double window section details is available in this drawing file. section details of the door, and window, are given clearly. Download the Autocad DWG 2D file. These blocks are useful for civil engineers, architects, and interior designers. Thank you so much for downloading AutoCAD files from the cadbull website.