Which type of ladders is known for being relatively lightweight and resistant to deterioration with age?

The correct answer highlights the characteristics of metal ladders, which are known for being relatively lightweight and resistant to deterioration over time. Metal, particularly aluminum, has a favorable strength-to-weight ratio, making these ladders easy to transport and maneuver for various jobs.

Additionally, metal lacks the organic composition that can decompose or warp over time, as seen with wooden ladders, which can weaken due to exposure to moisture and insects. Metal ladders also perform well in various weather conditions since they don’t absorb moisture and won’t rot like wood, nor will they degrade as fiberglass can when exposed to certain chemical environments.

While fiberglass ladders are also resistant to deterioration, they tend to be heavier than metal options, making them less favorable in scenarios where weight is a concern, despite their benefits in electrical safety due to non-conductivity. Plastic ladders, while lightweight, may not offer the same stability and durability as metal in heavier-duty applications.