NFL betting lines for many people are nothing more than numbers that are the price they must pay to wager on a side, total, etc. To the sophisticated gambler though, the NFL betting spread is a language all its own, with hidden meanings in which the true value is within. NFL lines should be read by examining a few key factors. Let’s examine the components that go into the NFL spread. In professional football, the standard that is given for home field is three points, but the true NFL price for home field will often be greater or lesser, depending on the team, venue, and intangibles.