In what scenario should heavy-duty door casings be used?

Heavy-duty door casings are specifically designed to withstand the wear and tear that comes with frequent use, making them particularly suitable for high-traffic areas or service elevators. These environments experience constant movement of passengers and goods, resulting in a greater likelihood of impact and damage to the elevator doors and frame. Therefore, using heavy-duty casings ensures durability and longevity, reducing the need for frequent repairs or replacements.

In contrast, decorative applications might prioritize aesthetics over durability, which is not the primary concern for door casings in high-traffic settings. Residential areas generally experience less traffic and thus do not require the same level of robustness. Lastly, low-rise buildings can also have varying traffic levels, and the necessity for heavy-duty door casings would depend more on the specific usage patterns rather than the building height alone.