This standard specification covers the design and performance requirements for heavy-duty sheathed wooden crates for crates with a Net weight of up to 30,000 lbs (13,607 kg). Designed to protect items under harsh overseas shipping and storage conditions, these crates are able to withstand long-term logistics operations and rough handling. Describing the two types of crates and their basic styles, the specification provides guidance on interchangeable use, while recommending preference for type 2 crates when considering weight. The standard also allows the use of Miscellaneous construction methods, provided that the performance of the new method does not fall below the specified requirements. Users are required to take appropriate safety measures prior to application to ensure compliance with relevant regulations.