What is a square yard? A square yard, also written as 1 yd2, is a unit for measuring the area in the customary measurement system.
If one square yard measures the area of a square, then each side of the square will have a length that is equal to 1 yard or 3 feet.
Below, see a more realistic example of how big 1 square yard is. The green square has an area of 1 square yard.