There are a number of needs for high metal building structures which are used in various industries. It can take the use of vertical conveyors to even reach the heights that these have inside. It is mostly unused space that makes up these buildings. The main level is what is used most of the time since it is the most accessible.
In order to make enough ground and floor space in these building types, multiple units have to be built, causing them all to be sprawled out. This means that, again, space is wasted and the cost of the buildings is high. In order to alleviate the problem of cost, prefab buildings can be used to make the tall buildings at about forty percent less of the cost of a regular build.
These brilliant steel buildings leave a very small environmental footprint since the walls are already built and the structures are totally prefabricated. This makes assembly fast and efficient. All that is needed is a slab foundation and some time to build it together and that is all. Once the project starts, it is over much faster than any standard build would be.
Look into having this type of building instead of the standard warehouse build. If you are not going to use the upper loft space anyway, you may as well save on the total building costs which is exactly what these prefabricated buildings do. You can count on them being very sturdy, able to stand up to even the most harsh weather conditions that could possibly assail it.
If you do want the building to be tiered, that is possible as well. It is best to consult the builders about such matters. There will be high ceilings and walls that could easily accommodate tiers if they are desired and needed.