Outdoor trash cans usually come in 20, 32, 64, and 96 gallon sizes, the most common and standard acceptable size is in the 30-35 gallon range.

Usage
It can be difficult to choose the best trash container for your space if you don’t know what type of trash you need to dispose of.
Location
The location of your trash cans is important. Indoor or outdoor is one of the biggest factors to consider. Make sure you know enough about the volume of your trash to help you choose the right size container for your space.
Suitability
Removing trash quickly and easily will help keep your space looking great and help the environment.
Design
Design features usually serve a very practical purpose. A well-designed trash can allows you to throw things away quickly and easily, yet enhances the visual aesthetics of your space.
Price
Budget plays a very important role in the purchasing process. Choose the best price that is realistic after combining all points of consideration.

Lid Design
The lid design is important because it is the main point to seal the container; it can block the emission of odor and affect the surrounding environment.
Handle design
Handles are essential. Handles can be cleverly placed to help hold the container while emptying the contents.
Material Selection
Materials used to make internal or external containers should be strong and sturdy. For plastic collection containers, the best choice of material is PE.
Texture Selection
The easier the container is to maintain and keep clean, the better. Any container used for waste collection should be smooth inside and out and as free of creases or seams as possible. This makes the container easier to clean and prevents trash from getting stuck in the container.
Load-bearing Capacity
Capacity and load-bearing capacity are very important, choose different gallons and load-bearing capacity according to the needs of different scenarios.