Midrexâs primary business is direct reduction ironmaking. We build DRI plants that work day in and day out, year after. year to provide value for our clients so that they can make. the most of their investment and maximize their profits for. years to come. The MIDREXÂ® Process 2. The MIDREXÂ® Process.
Quick Answer. The maximum interior height of an entry door threshold is 1/2 inch, and up to 3/4 inch on exterior siding doors where it is essential to keep water out, as stated by the United States Access Board. These height limits improve wheelchair access to buildings.
Standard door height. As you can see above, the height of a 'standard' door in Australia is 2040mm. A lot of new homes are being built with taller (e.g. 2700mm) ceilings these days though, and for that reason many people are opting for taller 2340mm tall doors.