Shipping containers are fabricated in a controlled environment where tight tolerances and quality control are top priorities. Since the containers are the structural floors, halls and roofs of the facility, the building is dried-in once the containers are set in place - a sharp contrast to conventional construction which is exposed to weather during construction.
Shipping containers are manufactured to carry about 29 tons of cargo on ships in which they are stacked up to 8 high. When used in construction, the loads required by building code are much less than the 200+ lbs. per square foot that container floors are built to support.
Shipping containers can be modified off-site so that once stacked, the building is ready for roof installation, exterior cladding and interior finishes. There is no need for metal workers or welders to be on-site erecting studs or structural supports, floor by floor. Once containers are set in place, all floors and levels and structurally complete.
Perhaps the biggest benefit to using shipping containers is their affordability. Each container provides 320 square feet of floor space. Purchase three containers and you have almost 1,000 net rentable square feet of storage for under $10,000, which is about $10/sf.
Using shipping containers to construct self-storage facilities reduces the amount of concrete needed to support a multi-story building. In addition, the containers are up-cycled - which means they won't be melted down after their useful life. Containers are made to withstand 20+ years of marine weather (salt water - salt spray). When moved into a climate-controlled environment, they will last just as long as the structural supports used in typical construction. Because of these environmental benefits during construction, GreenSpace's first two facilities saved enough electricity to power 1,000 homes for a year and reduced CO2 emissions by over 1,500 tons!