He rawa hangahanga ka whakaputaina mā tētahi tukanga whakanao ahumahi, he pararahi, he angiangi tōna hanga. He tino rauemi i roto i te mahi maitai hei hanga i ngā taonga maha. Ka taea te hīti maitai te tapahi, te wiri, te honohono, te whakapiko, te whētui.
A building material that is created through an industrial production process, a metal material which is flat and thin. It is a fundamental material in metalwork and used for fabricating many products. Sheet metal can be cut, drilled, joined, bent and folded.