Abstract: Apparatus for affixing spaced cushioning pads to wooden floor sleepers has a positioning channel to hold a sleeper to be padded with lifting means provided to raise the sleeper into working position, cushioning pads are placed at spaced positions along the length of the sleeper by ejector means moving individual pads from each of a series of feeder channels carrying stacks of such pads and placing these pads to overlie the sleeper, and stapling guns are in operative relation with the pads and sleeper to affix each pad to the sleeper at its spaced position along the sleeper length whereupon the sleeper is released from the working position for removal from the positioning channel.