LADDER SIZE: Open: 70.5" x 21" x 37.4", folded: 74" x 21" x 9.25", net weight: 23pounds.Please refer to the instruction manual, no extra tool is needed, and easy assembly within 10 minutes! MORE CONVENIENT DESIGN: Built in a large size tool platform to accommodate tool equipment. And the soft sponge-covered handrails will bring you a comfortable and stable climbing experience, especially frendly for seniors