A dunnage removal apparatus is situated adjacent a load conveyor and more particularly at a transfer device that moves a unitized load from the load conveyor to a pre-feeder. The dunnage removal apparatus includes a guide chute that funnels a loose flap of the dunnage sheet toward a sheet stripper mechanism. The mechanism includes a motor driven drive roller and a pair of pinch rollers that pinch the flap and pull the dunnage sheet from beneath the load. The pinch rollers are supported for movement relative to the drive roller to accept dunnage sheet(s) of variable thicknesses. A backstop plate is provided that moves with the pinch rollers. The load bears against the backstop plate as the dunnage sheet(s) is removed.