Sometimes alternate materials are permitted to be used for the construction of these shipping crates, but the crate’s performance must be equivalent to or exceed the functionality that these crates would be if they were created using the specified materials. ASTM-D6880 and the numerous other shipping crates can be confusing to deal with, as they must be constructed properly and not overfilled. A dependable shipping broker who has experience of packaging and shipping crates of all types, like Kaiser & Johnson. Kaiser & Johnson has many years of experience in international shipping packages for customers of all types. Give Kaiser & Johnson a call today for a quote.