Hi, I will lay concrete on 173 m2 and build a stone house on it. I will build a house with a wooden bay window by going up one floor above the stone house. My question is: How many braided irons will I use when placing the submerged concrete? How much iron will the stirrups be arranged at the corners and will their spacing be 20 cm? What should be the iron (longitudinal reinforcement iron) to connect the stirrup? My financial situation is not good. Thank you if you can help me.