Which casket construction method provides the most durability?

The casket construction method that provides the most durability is metal. This is primarily due to the strength and resistance to environmental factors that metal materials possess. Metal caskets are typically made from steel or bronze, which are both engineered to withstand wear and tear over time. Steel, for instance, is known for its sturdiness and can come in various gauges, with lower gauge numbers indicating thicker and more durable metal. Bronze is even more robust due to its corrosion resistance and longevity.

In comparison, softwood caskets are made from natural wood that is softer and generally less durable than metal. They may degrade faster under certain environmental conditions. Plywood, although stronger than simple softwoods, still does not match the longevity and durability provided by metal materials. Composite caskets combine different materials, but they are not specifically designed for enhanced durability like metal is. Therefore, given its inherent properties and construction, metal stands out as the most durable option for casket construction.