That's a great and practical question! For a family of four, the typical recommendation is an outdoor trash can with a capacity between 60 to 95 gallons (approximately 227 to 360 liters). This size range is considered the standard for most weekly municipal trash collection services in many areas.
The logic behind this is based on average waste generation. A family of four typically produces about 20 to 25 gallons of general waste per week. A 60-gallon can provides a comfortable buffer, while an 80 or 95-gallon can offers ample space, especially if you have weeks with extra packaging or hosting gatherings. It prevents overfilling and keeps odors and pests securely locked away.
When choosing, consider your local waste collection rules. Many cities provide specific bins, often 64 or 96 gallons. If you're purchasing your own, think about your family's habits. Do you recycle and compost diligently? If so, a smaller 60-gallon can for landfill waste might be perfect. If not, lean toward the larger size. Also, ensure the bin is sturdy, has a tight-fitting lid, and wheels for easy maneuvering to the curb. The right capacity means fewer messy overflows and a cleaner outdoor space.