A beam has an upper face, a lower face, side faces, and an end face. The end face has a rectangular configuration and is vertically disposed. The end face has a slot vertically disposed and parallel with, and equally spaced from, the side faces. Beam holes extend through the beam on opposite sides of the slot. A post has a front face, a parallel rear face, and parallel side faces. A connector has a first section and a second section. Beam apertures are formed in the first section. The first section is positioned in the slot with the beam apertures aligned with the beam holes. The second section is attached to the post. Dowels extend through the beam holes and the beam apertures thereby coupling the beam to the post. The system also includes tools for accurately cutting and drilling components, wood and otherwise, to be coupled.