In building construction, what are the waste of wood square, formwork and raw steel? How should it be avoided?

Generally, the square timber formwork is controlled at 1.3- 1.5, which is generally a waste in woodworking construction. You'd better use the old template to saw the bottom plate of the beam, and use the sawed plate on the side of the beam. Find a good blanking material and everything will be fine. It is necessary for a carpenter to find a good carpenter. You make people waste people and their time.