We’ve included common dumpster dimensions for each of these containers below. Production of metal containers and constructions, all types and sizes, for transportation of any cargo. A 30 garden dumpster is a good size for foreclosures, evictions, estate clean outs. Roll off container Lorry in good working condition Peterbuilt lorry has 3406 Cat runs good,but turbo leaks oil will sell just the body also call Clayton at 252 342 7160 1999 gal breath roll-off hoist. Common dumpster dimensions for a 20 garden dumpster are: 22 ft. long by 8 ft. wide by 4.5 ft. high. This open top dumpster size is a good.