Just for future reference when we run our door material at work on the shaper in 10' plus lengths the in feed side of the fence is spring loaded to keep the boards tight against the outside fence. Once the out feed fence is sent to the cutter you can run any width piece you want just by setting the outboard fence to the finished dimension you want to the out feed fence and your good to go.
With this type of setup your boards can vary in width but once you run them thru they will be consistent in width.