Jig for forming structural building member

A jig for wooden beam construction, the jig adapted to hold in position an upper beam above a lower beam, the upper beam in or overlapping the lower beams vertical footprint, the jig including a fastener dispenser mounted on a translocatable carriage, the fastener dispenser adapted to mechanically attach the upper beam and the lower beam, wherein the jig includes at least one upper dispenser unit and at least one lower dispenser unit, the upper and lower dispenser units each including a fastener dispenser, the upper dispenser unit being adapted to be mounted above the wooden beam and the lower dispenser unit being adapted to be mounted below the wooden beam, each of the upper and lower fastener dispenser units being adapted to eject a fastener at a non-perpendicular angle to the respective longitudinal axes through the respective upper and lower beams into one of the mid supports to mechanically attach the upper beam and the lower beam.