Approximately how long should it take to assemble the building?
A. Because there are so many different variables, it is almost impossible to answer this question. However, for a small building or shed, if you have at least one other person helping you and you have carefully read and understand the assembling instructions, then you should allow at least a full day to assemble your metal building once you have finished installing the foundation. For larger steel buildings such as those used for offices, churches, and homes that are professionally assembled, the approximate construction time is usually between 60 to 90 days.