The 20 yard dumpster on our Peterbilt is the job site power house! it takes concrete to the halfway mark. This dumpster is built tough ready for the light and the heavy trash on the site. our two 20 yard sizes are either 18 feet long and 4.5 feet high or 22 feet long and two feet tall. both sizes are ready for trash. with our company the 20 or the 40 yard are the most popular sizes with our commercial clients.