Before taking the measurements necessary for installing front doors, you should use the pen and paper to create a rough sketch your current door. Once measured, you can conveniently note the measured height and width of the reveal, which will give you the precise dimensions required when ordering your new door. Do not forget to mark the location of the door handle as well.
Although the dimensions of the reveal may be found in the blueprints of the building, these measurements are often no longer not up-to-date. Particularly in older buildings, this may be the case after years of renovations. The data recorded when re-measuring the reveal should not only be used during the ordering process but you should also write down the most recent figures onto the original blueprints. This saves you time should you renovate your home in the future. This is why the measurements should always be listed with their date (Fig. 1).