what are the dimensions of a half sheet cake pan
Sheet pan Professional sheet pans used in commercial kitchens typically are made of aluminum, with a 1 in (2.5 cm) raised lip around the edge, and in the United States come in standard sizes.[1] The full-size sheet pan is 26 by 18 in (66 by 46 cm), which is too large for most home ovens. A two thirds sheet pan (also referred to as a three quarter size sheet pan) is 21 by 15 in (53 by 38 cm).[2][3] A half sheet pan is 18 by 13 in (46 by 33 cm); quarter sheets are 9 by 13 in (23 by 33 cm). The half sheet is approximately the same size as mass-market baking sheets found in supermarkets, and the quarter sheet is a common size for rectangular, single-layer cakes. Other commercial kitchen equipment, such as cooling racks, ovens, and shelving, is made to fit these standard pans.
Letter (paper size) The related paper size known as half letter, statement, or organizer L is exactly one half of the US Letter size: 8.5 by 5.5 inches (220 by 140 mm) (8.5 × 5.5 in).
Heptagon In geometry, a heptagon is a seven-sided polygon or 7-gon.
Bed All mattresses are made according to certain standards, but different brands sometimes have exceptions. Most often, the difference is 2-5 inches. When calling a business to check, specify the exact size of the mattress.