Feb 11, 2022 · The official USA Curling rulebook states that each curling stone cannot be greater than 44 pounds (19.96kg) in weight, and no less than 38 ...
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Feb 7, 2024 · The curling stone, or rock, is made of dense polished granite from Ailsa Craig, Scotland, and in the Olympics, each rock weighs 19.1 kg (44 lbs) ...
May 22, 2016 · The World Curling Federation requires that a curling stone weigh between 38 and 44 pounds (17.24 and 19.96 kg).