Unit Load - "A single item, a number of items, or bulk material which is arranged and restrained so that the load can be stored, picked up, and moved between two locations as a single mass."
(Tanchoco)

History


Pallet and container research has a long history at Virginia Tech. For more than four decades a cooperative arrangement has been in existence with the National Wooden Pallet and Container Association. That arrangement was solidified and made permanent in 1976 when the Association provided funds for the construction of the William H. Sardo, Jr. Pallet and Container Laboratory.

Wood pallets, combined with the lift truck, are recognized as the most efficient load handling system available today. Production of wood pallets has risen continuously since World War II to the level where they consume close to 12 percent of all the lumber produced in the United States. Close to 35 percent of all the hardwood lumber ends up in the 400 million pallets manufactured each year with a product value of over $5.5 billion. On any given day, some 1.9 billion pallets are used as bases for unit loads within the United States.

With industry and government support, Virginia Tech researchers have developed a reliability-based design and analysis methodology. The research results are packaged in the PALLET DESIGN SYSTEM (PDS) software that allows pallet producers and users to tailor pallets to specific applications. PDS is leased by over 100 users in eight countries. Additionally, Virginia Tech provides a telefax design service for manufacturers and users. Many others use the system by calling the department by telephone.

Recently, the research effort in this area has included recycling used pallets. As disposal of discarded pallets becomes ever more difficult and expensive, and as availability of the raw material is limited, there is a need for recycling used pallets. That research project is a cooperative effort including Virginia Tech and the U.S.D.A. Forest Service Southern Forest Research Station.

In view of the importance and continuing growth of the pallet and container industry, the need for a strong research program focusing on wooden pallets and containers has long been recognized. The William H. Sardo Jr. Pallet and Container Research Laboratory meets this need. The National Wooden Pallet and Container Association, which provided the initial funding, continues it's strong support.

Copyright © Center for Unit Load Design at Virginia Tech
For more information contact Bonnie Maccubbin at bjmac@vt.edu