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trimmer arch

noun

, Building Trades.
  1. an arch, usually of brick and in the form of half of a segmental arch, between a chimney and a header in a floor structure to support a hearth.


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Word History and Origins

Origin of trimmer arch1

First recorded in 1825–35
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Example Sentences

The hearth, which may be of brick, stone, tile, or concrete, must be supported by a masonry trimmer arch or similar fire-resisting construction.

He has to form fireplaces, flues, chimneys, and the flat trimmer arches which support the hearth, and has to set the stove, kitchen range, copper, etc., in a proper manner.

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