Mich. Comp. Laws § 290.101

Sec. 1. The standard barrel for fruits, vegetables, and other dry commodities other than cranberries shall be of the following dimensions when measured without distention of its parts: length of staves, 28 1/2 inches; diameter of heads, 17 1/8 inches; distance between heads, 26 inches; circumference of bulge, 64 inches, outside measurement; and the thickness of staves not greater than 4/10 of an inch: Provided, That any barrel of a different form having a capacity of 7,056 cubic inches shall be a standard barrel. The standard barrel for cranberries shall be of the following dimensions when measured without distention of its parts: length of staves, 28 1/2 inches; diameter of heads, 16 1/4 inches; distance between heads, 25 1/4 inches; circumference of bulge, 58 1/2 inches, outside measurement; and the thickness of staves not greater than 4/10 of an inch.