Aluminium and Glass Fibre Steps. You will also find Stainless Steel and Plastic steps in this section. Aluminium and glass fibre steps are light-weight by nature and a great option if you are moving the steps to different locations many times during the working day. Plus a fibreglass step ladder is the best choice for anybody working around power lines or other sources of electricity, because of the material’s nonconductive properties, making them a popular choice among electricians. Fibreglass is strong and lightweight, making it easy to lift and transport, and ensuring durability and safety of the ladder while in use.