That's an interesting question that touches on both urban infrastructure and practical security concerns. While there isn't a single universal standard, I can give you a clear picture based on common municipal trash can designs.
Most standard urban trash cans, typically made of durable plastic or sometimes galvanized steel, have lids designed to handle everyday use - being opened and closed for trash disposal. The weight capacity isn't usually specified by manufacturers since lids aren't intended as load-bearing surfaces.
For plastic lids commonly found on wheeled bins, the weight capacity is generally limited. These lids might support 5-10 pounds (2-4.5 kg) distributed evenly, but placing a heavy padlock (which concentrates weight on a small area) could cause cracking or deformation over time, especially in extreme temperatures.
Metal lids offer better strength, potentially supporting 15-25 pounds (7-11 kg), but still aren't engineered for heavy point loads like large locks.
If you're looking to secure your trash can, consider these alternatives:
- Use a lighter, weather-resistant combination lock
- Install a hasp that distributes weight across both lid and bin body
- Choose a trash can specifically designed with integrated locking mechanisms
- Use a cable lock that wraps around the entire container
The lid's primary purpose is weather protection and animal deterrence, not security against determined tampering. For valuable items, consider proper storage solutions rather than relying on trash can lids to support heavy security devices.