1 Scope
This British Standard specifies requirements for the design and fabrication of steel-framed
windows and glazed doors.
NOTE Performance requirements common to all windows and external pedestrian doors are specified
in BS 6375.
It is applicable to windows and doors fabricated into frames in a factory from mild
steel profiles, hot-rolled or cold-formed, installed vertically into the external
face of buildings, as single or multi-light units, in coupled assemblies when appropriate, of the following types:
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a) fixed light;
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b) side-hung open out or in;
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c) top-hung;
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d) bottom-hung;
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e) horizontal pivot;
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f) vertical pivot;
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g) single-leaf hinged or pivoting door;
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h) double-leaf hinged or pivoting door.
It is not applicable to:
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1) windows or doors in which any frame member is longer than 3 m;
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2) patent glazing or curtain walls that span across structural floor elements;
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3) kits despatched in bar form for assembly into frames on site.