The best size depends on what the job produces. Liberty jobs run through all five containers, 10 through 40 yards.
The 10-Yard Dumpster is built for weight rather than bulk. A driveway broken out, a chimney taken down, or a load of dirt and rock will reach the limit while the container still looks roomy.
The 15-Yard Dumpster fits a garage or basement emptied, a porch rebuilt, or a single roof layer off a typical Liberty house. It is the sensible step when a 10 will not quite do.
The 20-Yard Dumpster is the workhorse on Liberty residential jobs. Whole-home cleanouts and multi-room renovations generally land here, and it parks on a standard driveway without trouble.
The 30-Yard Dumpster suits additions, new builds, and teardown work. Once a project runs across several weeks the extra capacity saves you from paying for swaps.
The 40-Yard Dumpster is the largest placed in Liberty. It is a commercial and industrial container, for demolition and for clearing out buildings at scale.
Give your account manager a description of the job and the heaviest material in it, and the size question answers itself.