Which type of ladder can be constructed from materials resistant to splintering or cracking?

Fiberglass ladders are specifically designed to resist splintering or cracking due to their construction from composite materials that do not have the same structural weaknesses as wood or certain plastics. Unlike wood, which can easily splinter and degrade over time, fiberglass offers durability and is also non-conductive, making it safer for electrical work. While aluminum ladders are strong and lightweight, they can dent or bend upon impact, and they do not have the same resistance to environmental factors, which can affect their longevity in certain situations. Plastic ladders, while resistant to rust and corrosion, may not possess the same level of structural integrity and durability as fiberglass, especially under heavy loads or exposure to extreme temperatures. Thus, fiberglass is the best option for ensuring both safety and longevity in ladder usage.