sort by best latest
So they can fit more cargo in them. Their size makes it easy to fit pallets in.
You can help the HubPages community highlight top quality content by ranking this answer up or down.
Copyright © 2016 HubPages Inc. and respective owners.
Other product and company names shown may be trademarks of their respective owners.
HubPages® is a registered Service Mark of HubPages, Inc.
HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.