Revit Door Families - UK Door Block Library in mm: 14 doors on standard 838 x 1981 and 926 x 2040 leaves, effective clear width marked on every block (DXF - imports into Revit, AutoCAD, SketchUp)
Fourteen UK door blocks drawn in millimetres - single leaves at 762, 838 and 926 wide, an equal pair, a leaf-and-a-half pair, an FD30 fire door, a pocket slider, a surface slider, a bi-fold, an external entrance door, an outward-opening WC door, a door elevation, a vision panel and a door tag - each one labelled with its structural opening and its effective clear width measured at 90 degrees. At ten minutes a symbol, which your own timesheet will confirm or correct, that is roughly 2.3 hours of drafting you do not repeat on the next job.