We can make any dimensions you need. Often the long sides have narrow borders due to restricted space in the toe kick area. But there is usually a one inch wide border on the left and right for screw holes.
Pricing depends on the number of square inches, but it usually seems to run around $29.95 plus shipping. Call 509-535-5098 for a quote on the size you need. Please have your pattern opening dimenions handy as well as your desired overall dimensions.