halfsheet

Halfsheet is a term used in different contexts to describe a sheet that is roughly half the size of a standard sheet. In culinary settings, the half-sheet typically refers to a half-sheet pan, a shallow baking tray used for cookies, sheet cakes, and roasting. In printing and publishing, half-sheet can describe smaller paper sizes used for flyers, newsletters, or folded materials.

In baking, the half-sheet pan is a staple in many kitchens. In North America, it commonly measures about 18 by 13 inches (approximately 46 by 33 cm) with raised or rolled edges around 1 inch high. The pan is usually made of aluminum or aluminized steel, though nonstick variants are common. It fits standard home and commercial ovens and is valued for even heat distribution and the ability to bake large batches of cookies or sheet cakes. Pans come in various depths, with typical sides ranging from about 0.75 to 1 inch. Care involves cleaning, drying promptly to prevent corrosion, and avoiding significant thermal shocks to reduce warping.

In printing and publishing, half-sheet can denote a smaller sheet size or a sheet intended to be folded in half. In the United States, it is often associated with half-letter sizes (about 5.5 by 8.5 inches) or with standard letter-size sheets used for folded pieces. The exact dimensions vary by region and printing traditions, but the concept remains: a sheet that is half the area of a common reference size.

See also: sheet pan, quarter sheet, full sheet.