The first step is digging out the grass. Then, for a long-lasting green, it's best to lay down concrete. Here, they're even using heavy rebar to reinforce the concrete since the soil shifts a lot in this backyard.

The cups will need a drainage system, so you'll want to dig out holes that are big enough for large nursery buckets. Place the buckets in the holes and place PVC pipe in the center that's cut to stick up about a quarter-of-an-inch above the poured concrete. Then fill the buckets with large gravel rock.

The concrete should be contoured to swell and dip in various places so that every putt will break a little differently.

After the concrete has set, glue down the turf with carpet glue. Make sure it's going down flat over the contours you've created in the concrete. And look for a turf that is state of the art -- with UV protection and the best similarity to real bent grass greens.

Then you can lay down a thin layer of sand on top of the turf to speed up the green.

This green has five holes, and it's about the size of the most backyard putting greens -- about 500 square feet. The average cost for having one installed will run between 15 and 20 dollars a square foot, but if you do at least some of the labor yourself, you'll save a lot of money. The whole process takes about 12 hours, but you'll probably want to spread that out over 2 or 3 days.