At Canvas ETC, we try to ship exact yardage as the customer orders, but due to rolling machine calibration, and occasional user error we alert our customers to a /- 5% tolerance in quantity ordered. Canvas is sold by the linear yard. 1 lin yard = 3 lin feet = 36 linear inches. When choosing a width, that is inches (12"= 1 foot). So if you put 1 in the quantity box, you are ordering 1 linear yard of the width chosen in the drop down box. NOTE: We try to our best to represent the true fabric color on our website, but different monitors and settings may show different shades of the color. Please request a sample if you want to be absolutely sure.