Abstract: An apparatus is provided for forming a pallet having a plurality of runners arranged in spaced parallel relation and subtending a plurality of deck boards arranged in spaced parallel relation. The apparatus includes a surface on which the runners are supported, and power actuated fastener-driving means mounted in overlying relation with respect to a predetermined area of the surface and vertically adjustable relative thereto between operative and inoperative modes. Adjustably mounted on the surface area is a stop means which is adapted, when in one position of adjustment, to be engaged by a runner when the latter is in vertical alignment with the fastener-driving means. An adjustable runner-retention means is provided which, when in one position of adjustment, coacts with the stop means and retains a runner against the stop means while the fastener-driving means is in the operative mode and is fastening corresponding segments of the overlying deck boards to the runner.