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Rolled section

Also called steel section, hot-rolled section

A solid steel bar rolled into a T, L or Z shape to make the members of a steel window.

Steel window members are rolled from red-hot bar between shaped rollers. The result is a solid section only a few millimeters thick, with legs that do the jobs a wood sash needs a rabbet for: one leg stands up for the glass to bed against, and another overlaps the frame to make the weather seal.

Sections are cut, mitered and welded at the corners.

Bottom rail of a steel sash in section, outside at left

Hover or tap a part to see what it is called.

Steel sash, bottom rail in section

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