Environmental & Recycling Considerations
Wooden doors are usually painted, stained and installed with glue and this makes it generally unsuitable for recycling. There is also the consideration that trees have to be cut down to gather wood to be manufactured into doors.
Aluminum easily stands out when it comes to recycling. As noted on https://www.aluminum.org
• Recycling is a critical part of the modern aluminum business. Making recycled aluminum only takes around 5% of the energy needed to make new aluminum — reducing carbon emissions and saving money for businesses and end consumers.
• As a result, nearly 75% of all aluminum ever produced is still in use today.
• In most industrial markets like automotive and building, recycling rates for aluminum exceed 90%.