Another solution is to use a four inch PVC pipe. Use a hole saw to drill the holes of the desired diameter in the PVC. These will need to be 75% larger than large enough to hold whichever cables you are going to be lifting. Drill the holes at a distance twice the desired height of the elevator. Next, cut the lengths needed at half way through the drilled holes and half between the distance of the holes. You will end up with elevators of your desired height with small (or large) troughs (sp?) in them. Work as well as anything else I've tried. Can be painted if desired. Best Regards.