Before you try putting your hands into any kind of business you need to first have at least some basic knowledge about the trade. Only if you learn the trade well that you will be able to do it well and also taste success or else it will be an utter debacle. You will only experience losing all that you have, right from money to people and eventually your business. So keep your facts straight and give stress to learn the business well before you really pump your energy time and money into it. The people who will be associated with your business will look how confident you are and your confidence will come up with the kind of knowledge you possess. If you do not know much about your business, it will certainly reflect on your persona and that is going to be really bad.
Speaking about the construction industry, it will just not let you run the business if you have very little or absolutely no knowledge on how to function. There is high level competition in this business and more people are getting in into the rat race. So in order to outsmart them, you got to be a bit smarter first. Therefore, it is recommended that you work with some construction company for the first few years so that you understand the nitty gritty of the business. It takes time to learn something new and therefore you got to stick with the company for few years and not months. Check how to behave with the laborers, what compensation you are supposed to pay them, how things are coordinated and how people are hired. You also need to understand a bit of managerial and admin part where you learn the work of managers and know what they do to manage things so that it all moves so smoothly.
Knowing the work of admin will help you understand how the payroll things work. You do not have to know everything in detail. Just the basic understanding will do. You learn these things and can incorporate it in your business. Ideally big construction companies have people who advices the owners on these things. You may also need advices when you reach to that position but in order to understand their suggestions, you need to know what they are talking about. So knowing these things becomes crucial. Another important area that you need to touch is the procurement of heavy equipment and other raw materials. Also knowing where to dump the debris is crucial.
If you know someone who owns a construction business, you can start working with him to learn things. So work with him for few years and gain as much knowledge as you can and once you feel that you are confident enough to start a business of your own, you should take the initiative and give it a shot. You will get to know more things once you head up for your own business and may find the journey interesting and joyful.