In Sterling, the cost of a dumpster reflects both your project and Massachusetts's strict disposal rules.
Container size comes first. Choosing a size that fits the whole job keeps you from paying for an extra haul.
Weight comes next. Stone, old plaster, and roofing are heavy, and so is soil from a landscaping job. Mention heavy material when you call so the included tonnage matches your load.
Massachusetts rules shape the rest. The state bans metal, brick, concrete, asphalt, and cardboard from regular disposal, and it bans wood from landfills, so construction debris usually goes to a processing facility that sorts it first. Sorting costs are built into disposal fees, and mixed loads can cost more than clean ones.
Distance also counts. Sterling doesn't run a transfer station for roll-offs, so loads travel to facilities in nearby cities.