Rototilling a 20'x30' Area

[kenstrac]

Depends on what they have to rent I went to a rental store a few years ago and they had a choice of 3 tiller sizes the largest had to weigh 6-800 lbs was all hyd drive I'm sure that tiller would eat up whatever you threw at it.maybe they have that type in your area

 

[elalexander]

Like others have said take small bites and go slow. Have a wheelbarrow near by to put rocks in. You'll have to move them somewhere. If there is a Tractor supply store etc nearby often you can find an ad on the bullitin board for people that will plow/till gardens. The first time is the most work, each year after that, if you have been adding matter back it gets easier. Matter being leaves, pea vines, and other things from the garden that breakdown and make compost. This makes the soil better and each year you'll remove more rocks. Somewhere in China someone is saying where are all my rocks going.