The PDSR combines the tight turning characteristics and low operating cost of a walkie straddle stacker with the flexibility of a counterbalanced truck through the use of a pantograph. This mechanism extends the loads being handled beyond the straddle legs to lift or lower products and can be retracted for compact turns. With the addition of power steering, sideshift, proportional hydraulics, and tilt, the PDSR delivers exceptional versatility and easy intuitive control.