https://blogfreely.net/banjosh....ip9/14-businesses-do
Tunnel Shipping Containers They are brand new (one trip) shipping containers with double cargo doors at each end. This allows for easier access when loading / unloading and is an excellent option for those planning to build a structure with two entry points, such as bridges or tunnels. These containers are equipped with fork pockets that can be used by industrial forklifts of large size. They also come with a minimum of two air vents that ensure the proper circulation of air throughout. Easy