floor opening

floor opening

According to OSHA: an opening measuring 12 in. (30.5 cm) or more in its least dimension in any floor, roof, or platform, through which persons may fall.
References in periodicals archive ?
steel members shall be fabricated from hollow structural sections by ripping the manufactured members to achieve an angle shape which shall be fastened to the floor opening at the locations shown above.
Except for the parents' two-storey bedroom and storage rooms on the east, the lower floor opening on to the terrace is largely given over to communal life, with a double-height dining area flanked on the outer west side by a pristine kitchen (industrial stainless steel adapted to domesticity) and its ancillary spaces, and by the family hearth on the other.
Improper floor openings, excessive air contaminants, faulty electrical wiring and high lead levels were the top violations committed by metalcasting facilities of various types in FY2011, according to the latest list released by the U.
According to the results of the audits during the last fiscal year, gray and ductile iron casters most commonly were cited for unguarded stairway and other floor openings.
Flood defences include waterproof doors, similar to submarine hatches, to all ground floor openings and 25mm thick outer panes for double glazing units to resist water pressure.
Floor openings will also be redesigned to enhance the traffic flow through the upper levels of the center.