A 12 yard dumpster holds 12 cubic yards of waste. This is roughly equivalent to five pickup truck loads of debris. Common dumpster dimensions for a 12 yard dumpster are: 14 feet long by 8 feet wide and 3 ½ feet high (dumpster dimensions can vary, but total volume is accurate). If you don’t have a lot of debris or the space to fit a big dumpster on your property; a small 12 yard dumpster rental will do the trick. This dumpster size is ideal for residential debris removal jobs and cleanups, such as a small kitchen or bathroom do-it-yourself home remodeling project or a general cleanup. If you are looking to clean out your garage or other rooms in your house, look into renting this dumpster size.