When it comes to renting a dumpster, one of the most important decisions you'll need to make is selecting To determine the appropriate dumpster size, it's important to estimate the amount of demolition debris you'll generate. Consider the scope of your project and the type of waste you'll be disposing of. For small remodeling or renovation projects, a 10-yard dumpster may be sufficient. On the other hand, if you're tackling a larger construction project, you might need a 20- yard or 30-yard construction dumpster to accommodate the heavier materials and tons of debris.