06/09/2020 · 14, 12, 10, and 8foot blade options. 2. Echelon Power Screed. The Echelon power screed utilizes a small and light Honda engine that does an excellent job of vibrating the 12foot aluminium blade. The Echelon is also pretty lightweight at 59 pounds, including the blade. Without the attachment, it weighs only 33 pounds.