Fenester
Window materials quiz
Name the highlighted part.
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Bottom rail of a thermally broken aluminum sash in section, outside at left
Bottom rail of a clad-wood sash in section, outside at left
Bottom rail of a fiberglass sash in section, outside at left
Bottom rail of a steel sash in section, outside at left
Bottom rail of a vinyl sash in section, outside at left
Bottom rail of a wood sash in section, outside at left