A building framing system includes a floor portion or floor framing system, a wall portion or wall framing system, and a roof portion or roof framing system. Each framing system comprises a plurality of components. Each component defines a connection geometry for connecting one component to another. The connection geometries are such that mechanical or other similar fasteners are not required to hold the various components together; rather, the connection geometries connect the components and hold them in place with respect to one another. Further, the framing systems utilize pre-cut components such that the components of each framing system arrive onsite cut to a needed length and width and with the appropriate connection geometry.