This specification covers five types and two styles of open and one type, and one style of covered wood crates designed for net loads not exceeding 4000 lb [1814 kg]. Open crates are suitable for shipment of items, which are not readily susceptible to damage from outside forces, and which require only limited protection against the elements. In general, style A crates have heavier components and are to withstand rather severe handling and multiple shipments (heavy-duty), while style B crates should be confined to handling and shipping that impose only light to moderate hazards on the container (light-duty). Types I, IV, and V crates are general purpose types; type II crates are designed for items such as ladders, tubing, extrusions, or wallboard which do not require blocking, bracing, or cushioning; and type III, style B crates are designed for such self-supporting material as channels, angles, or other structural members where the container serves only as a means for more convenient stacking and handling. The construction and assembly method for open and covered wood crates are presented in details. A crate shall be completely assembled to ensure achievement of a container which can be properly and easily assembled which is square, and is of the proper size. Evaluate the clarity and logic of the assembly instructions.