A backyard putting green can be found online at American Turf
and Carpet, Birdie Ball, Grass Forever, Backyard Putting Greens,
and Turf Avenue. A specialty store may also carry this item.
As your older brother, I've been where you are—maybe not exactly, but close enough.
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Ross
Every question is just a happy little opportunity.
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More answers
You should have a strip of turf and a Golf hole to make a
putting green. You need to make sure the ground is flat and level
before you start to build your putting green.