How we measure... Line Height: When you enter your own text into the designer, we measure from the top of the tallest letter on the line, to the lowest letter on the line. For example, the word "Simple" would measure from the top of the S to the bottom of the lowercase p. We do it this way to ensure you have enough space for your decal to be placed. Line Width: The line width measurement shown on page is the measurement of the longest line within your design. So if you have three lines of text, the longest line will be displayed. This is to make sure you have enough space horizontally for the decal. Multiple Lines Height: When you are ordering multiple lines, each subsequent line will match in size, so no single line is larger than your line height selection. The overall height estimator will give you an overall height range (min - max), so you can make sure you have enough space for the entire decal. This measurement will vary by font and line height so if you need an exact measurement of the overall height of your design, please contact us before placing order so we can provide this data.