Chapter 7: Paper
NORTH AMERICAN SHEET SIZES
Most paper manufactured and sold in North America is measured in inches. Sheet sizes are based on trimming a quantity of 8 1/2" × 11" (216 × 279 mm) items or pages from a single sheet with a minimum of waste. Some sheet sizes, such as 11" × 17" (279 × 432 mm), are exact multiples of the 8 1/2" × 11" (216 × 279 mm) inch standard. Other sheet sizes are also based on multiples of 8 1/2" × 11" (216 × 279 mm), but are slightly oversized to accommodate on-press requirements. For instance, a 23" × 35" (584 × 889 mm) inch sheet would yield sixteen trimmed 8 1/2" × 11" (216 × 279 mm) flyers or a sixteen-page signature while allowing a narrow margin for bleeds, grippers, and color bars.
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