Standard dumpster sizes include 10 yard, 15 yard, 20 yard, 30 yard, and 40 yard dumpsters, which are further classified as roll-off, commercial, residential, and dirt-only dumpsters. Whether you're a homeowner upgrading your house or a contractor looking for garbage disposal,... When you call around to rent a dumpster, ask questions about their dumpster sizes. Most companies will have one or more of these sizes on hand, but if they don't you may need to order something else. For example, a construction company that focuses on home repairs might only have a 20-yard dumpster in stock, but they may send out someone with a truck to get something larger if you need it. The size you select should be based on the amount of waste you plan to put into it. For example, if you plan to put more than 5 yards of trash into the dumpster, you should choose a bigger container so there's enough room for it. On the other hand, if you expect to put out less than 2 yards of trash, you can use a smaller container. As mentioned, dumpsters come in many sizes and shapes. They are generally labeled in cubic feet or gallons. For example, a 10-yard dumpster will hold 10 cubic feet of waste and a 20-yard dumpster will hold 20 cubic feet. Some dumpsters also are marked in square feet instead.