That's an excellent question! Finding the right size outdoor trash can is more important than many people realize – it can save you from messy overflows and unnecessary trips to the curb. For a family of four, the general sweet spot is a can between 40 and 50 gallons in capacity.
This size typically handles the weekly waste output for a standard household, accommodating about 3-4 full trash bags. It's large enough that you likely won't need to empty it mid-week, but not so massive that it becomes overly heavy or difficult to move on collection day.
A few key factors can influence your decision. If your family generates more recycling, you might opt for a slightly smaller trash can (closer to 40 gallons) and pair it with a dedicated recycling bin. Conversely, if you have frequent gatherings, do a lot of yard work, or have babies in diapers, leaning toward the 50-gallon end of the spectrum—or even considering a second can—might be wise. Your local waste management service is also a factor; some have weight limits, so a giant can packed with heavy waste might not be collected.
Ultimately, the 40-50 gallon range provides a great balance of convenience and capacity for most families of four, helping you manage your household waste efficiently and cleanly.