trim size

American  

noun

1. the final size of a product after its unnecessary parts have been cut off or removed.

   The trim size of the book in 6½ inches by 9 inches.

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trim size British  

noun

1. the size of a book or a page of a book after all excess material has been trimmed off

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Etymology

Origin of trim size

First recorded in 1925–30

Example Sentences

According to Achilles, FSG frequently implements the 5-by-8 trim size.

From Los Angeles Times • May 27, 2026

According to Margolis, the smaller trim size was previously the industry standard for U.S.-based publishing houses, and any fluctuation is due to the evolution of printing technology.

From Los Angeles Times • May 27, 2026

No EC titles survived the purge except Mad, which escaped the Comics Code by expanding its trim size to become a “magazine”—and this new, adaptable hybrid format was the key to its longevity.

From The New Yorker • Jul. 25, 2019

The real thing I wanted from this book was the jackets to be the actual size they were designed for; which is why the trim size is the size of the books I designed.

From Los Angeles Times • Aug. 5, 2014

Tall and pretty, with her mother’s long neck, she is now a trim size 8.

From New York Times • Jun. 5, 2010