Looking to play the fastest growing game in America, but don't have the equipment? You have two options. You can either buy a set of boards and bags, or build them yourself. If you can't wait to play, then I would recommend buying a set. You might be able to find a set at a local sports store. If not, you might have to shop online. Whatever you do, do not buy those plastic sets they sell in stores. They call it tailgate toss, Baggo, or something like that... but if it is made of plastic, do not buy it!
If you shop online, you should do some homework first. Make sure you buy from a company with good reviews and quick shipping. Many companies will customize the boards for you as well. I personally never bought a set of boards online, but I do know that some boards are better than others. First, you should decide whether you want a slick set of boards or a set that the bags "stick" to. Perhaps the best thing to do is buy a set from a company that runs tournaments using their boards. That way you know exactly what you are going to get. It also shows that the company is involved in the interests of the players, not just building sets and making money.
Got some free time on your hands? Build a set for yourself. There are many websites online that give you the specs and directions for building a set of boards. CornholePlayers.net gives a few options of building plans created by people who have built many sets themselves. The forum at this website should give you all the info you need, and answer any questions you may have about building a set of boards. Details regarding wood, paint, tools, decals, and more are under the building/customization section of the forum. Building your own set is cheaper, and it is a fun side project to do at home.