ABSTRACT

Standard doors are still manufactured primarily in imperial sizes. The manufacturers claim that this is because of demands by the building trade. There is also a need for replacement doors in older properties and the apparently odd size 2’8” 6’8” is still produced for this reason. There is more demand for metric sizes for large scale building projects but the choice is still limited. Unless a large quantity of doors is ordered, standard sized doors are still significantly cheaper than specials.