Hi, I'm Daniel Penselin, and this is how to remove grass and replace with rocks. The things you will need: rocks, a rake, and a shovel. The first thing to do is prepare your grass for removal. Waft the yard and make sure there are no tools, toys, rocks, or anything else in the way of where you will be working. Determine where you are wanting to place the rocks. Begin digging up the area of grass and remove the strips of grass from the yard. They can be reused in other locations if planted soon and watered well. Rake the yard to remove any stray pieces and then smooth it out. Place the rocks in the yard in the desired pattern. And this is how to remove grass and replace with rocks.