There are quite different kinds of metal structures that you can make yourself. This list includes:
fences and barriers;
yard buildings (greenhouses, buildings for pets, barns, etc.)
capacitive structures (tanks, barrels, etc.)
ladder frames (outdoor, indoor, straight and spiral);
doors, gates, etc.
Many can carry out the installation of metal structures on their own. If so, you can try to build a small frame house yourself. At the same time, in order to avoid trouble, it is better to make calculations in advance of the load indicators of your structure, even if it seems that the future structure will not be very heavy and not belong to capital buildings. For such a design, there is no need to lay a heavy-duty base of large thickness, which allows you to reduce material costs. There is another positive point and its essence is that a frame structure made of metal can eventually be used as the basis for a new building, for example, a warehouse or a garage..
If a decision is made to build a house from metal structures, then one cannot do without measuring the level of groundwater and determining the properties of the soil. This will allow you to determine how much power the foundation needs to be laid. At the next stage, there is a selection of rolled metal, and its dimensions are determined. When all the elements are ready, they are mounted in separate modular blocks, connected to each other both by bolts and by welding.