The standoff extensions shown here are simply 24-in. lengths of 2-in. PVC pipe. They slide over the arms of an aftermarket standoff that I affixed to my ladder. A single 1⁄4-in. machine bolt through each pipe extension and the standoff arms keeps the pipes from falling off when I move the ladder.
Souped-up ladder standoff. I came up with an extended-standoff setup to distance me from the house and to make working conditions safer. Mine backs me away far enough that I can work on gutters without the ladder leaning against the gutters.