Reinforced concrete is commonly utilized in precast structural components because it can be molded to any shape desired. It produces stiff parts with the least amount of visible deflection. In comparison to the usage of steel in buildings, reinforced concrete requires less trained personnel for structure erection. However, reinforced concrete structures are more labor intensive to construct since they cannot be assembled on site. The labor involved in erecting a reinforced concrete building is dependent on how much work is required at each stage of construction. The most arduous part of constructing a reinforced concrete building is the actual pouring of the concrete frames. After they are set up, continuous reinforcement is placed inside the frames and tied off to anchor bolts later inserted into the concrete. The formwork is then removed and the walls or ceilings erected over the frames. Depending on the size of the project, this process may have to be done over again between multiple shifts of workers so that progress can be made on time. Other than the initial installation of equipment, little specialized training is required to operate as an erector of reinforced concrete buildings. Most people can learn how to do it if they take their time and get help from others. However, those who wish to pursue this career path should have some knowledge of mechanics, carpentry and concrete skills. They will need to study architectural drawings and consult with experts when necessary. In conclusion, reinforced concrete buildings require considerable labor during construction.