There are a few things to keep in mind when considering the length of pole:Most Pole manufacturers measure their poles in 'reach' which is usually adding the average user reach of 4' to the actual length of the pole so the user will know what the maximum height the pole will reach (example: a 30ft reach pole is approx. 26ft long)It is important to not only consider the height you need to work at a site, but also the additional distance you will need to stand away from the building to clean. Obstructions around the building such as balconies, awnings, gardens, hot tubs, etc, will add additional length requirements to your pole.  Since Tucker Carbon Fiber poles are very light and telescopic, you can easily shorten the length of the pole if you don’t need all of the height for particular jobs, while still having a longer pole when required for other jobs.-