i use a 20 cubic yard dump truck ( 12' long, 8' wide 5.5' height) and sometimes i use a 10 cubic yard dual axle trailer or sometimes both
my price range from $18 to $30 per cubes = my 20 cube dump truck $360 to $600 per load
trailer = $180 to $300 per load
hope this helps
Size, time, weight, location, steps between pile in backyard to your dumpster, etc.
check out http://www.trashoutstartup.com for some ideas.
They vary so much depending on the job needed. I would think $500 would be a good average from those that I have done. Please let me know if you need help with anything else.
Amber Carrillo, Broker/Owner