When beginning a new quilt, you’ll want to start by answering a few questions to get a clearer idea of the dimensions you need your quilt to be. There are a few considerations to take into account, such as mattress size, shrinkage, borders, quilt style, and fabric choice. Determining the correct size for your quilt can become a bit of a math problem, but this easy-to-use chart will get you off to a good start.