FIELD: construction.
SUBSTANCE: invention relates to construction field, particularly to manufacturing of door openings and door's installation. Manufacturing method of door opening, including filling with building mortar of structure of iron core. During the manufacturing of construction element in place of manufactured door opening it is installed on permanent connection of assembly steel box-false box mounting hardware, mainly by blackest door box, to which by means of regulated releasable connection it is fixed door box.
EFFECT: invention will provide installation and change of door without overpatching of opening and dismantlement of fixation in opening.
3 dwg
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