okhajut

So specifically to make things like beds, desks, chairs, stools, wardrobs e.t.c. If metal is used, what would you start with? Sheets of metal and then cut and weld them together? Circular rods of metal? Hollow rods of metal? Sqaure rods of hetal? Hollow square rods of metal? With wood, we can just screw into it and the screw will basically drill into the wood and become latched. However, that is not possible with metal. So once you have the objects to be combined together. What is the next step? Create thread (I believe the process for that is called tapping) and then put machine screw or bolt into it? And finally, how do you know if you need to use CNC machine when you could just use sand paper or dremel tool or something portable to make finer adjustments?

For woodwork we need planks of wood. These are cut and tied together in various shapes and sizes to created everything from small boxes to complete houses. There are a variety of different kinds of woods and different ways to cut and attach them together. What I do not understand is, what do we have when it comes to metal work? People that use CNC machines will usually start from a metal cube or cylinder. This is machined to create the required end product. What about the rest of the people that do not use CNC machines? Do they start with sheets of metal and cut and join them together? Or beams of metal? Or something else? I am talking about the metal work equivalent of planks of wood, provided that such a thing actually exists. Since I know nothing about metal work but am a curious fellow, I thought I might as well ask here.