Everybody has their own preference for what size mouse pad works for them. Here at CyberPowerPC we have a size that caters to each of most peoples preferences. We have a standard 14x12 inch mousepad, a large mouse pad mat that is 30x12 inches, and lastly a full sized desk mat coming in at 36 x 12 inches. We recommend measuring your setup to figure out which mouse pad will work best with your desk.