Most boat lifts with canopies use the same method when determining the length and the width of your canopyy frame and cover. When measuring for length, you will measure from end to end, the entire length of frame.  Some lifts give even number measurements (20', 22', 24, etc.) and others will give you odd number measurements, but they all should measure to the foot. So you should not have a 22.5'  long canopy. Sometimes frames can be tweaked or damaged and [...]