4x4 Graph Paper Is Perfect For Taking Notes, Technical Drawing, And Engineering Drawing. It is thick paper that may be used on both sides to avoid bleeding. It comes in several sizes from 8.5 inches by 11 inches to A3 (11x14 inches). You can find 4x4 graph paper at most art stores. The number after the word "graph" refers to the size of the grid in inches. So, 8.5-by-11-inch 4x4-inch graph paper has 48 squares per inch. The number after the word "paper" indicates how many sheets are contained in a pad or binder. So, an 8.5-by-11-inch sheet of 4x4 graph paper will cover approximately 31/2 square feet. Graph paper is perfect for drawing math diagrams. You can use it to work out formulas, calculate numbers, and plot data points. Graph paper helps you visualize ideas before they're written down on a computer screen or paper document. You should buy 4x4 graph paper if you plan to do a lot of technical drawing. The thicker paper is better for detailed drawings that may be scanned into your computer. There are two main types of graph paper: linear and radial.