To determine what size of TV cabinet you'll need for a corner space, start by taking a few measurements. First, measure the front of your TV from the lower left to the upper right. Add two inches to that measurement to find the minimum width of your corner TV stand. Ensure that the stand has at least one foot of clearance from any obstacles, such as a window or door. Measure the dimensions of the locations to ensure the TV cabinet you plan on buying fits snugly within this space.