Size is an important criteria to be considered in steel buildings. In fact, size is critical for any building and needs to be determined before the construction begins. In case of prefab steel buildings, the builder will need to know the exact dimensions required for your building. This of course is no easy task as no one can be really sure what the best size and dimensions will be.
A good way to start deciding on your steel building dimensions is to first list down what exactly you will need your building for. This will greatly simplify the job of fixing the dimensions of your building. In many cases, the purpose of the building may not be very well defined, but you need to come up with a ballpark. Extensions can always be made to existing buildings but modifications are more difficult. Thus it is important that you get the details right.
For example, if you are into manufacturing inside your steel buildings, make sure all the equipment and machinery comes in. For this, you will need to determine the height of the largest equipment that needs to fit it. Always include a couple of feet extra, which is important to allow for tolerances. The size and dimensions of what needs to go in also determine the size and dimensions of the doors of your building.
You might also need to plan how you want the construction done. If you need clear-span construction for your building, you can get a column free interior space but of course it will be costlier.