Dishwasher drip pans can be purchased through Flood Saver, Leak-Guard and Sears, and through websites, such as WoodFloorsForever.org and Reliable Parts. As of March 2015, Flood Saver specializes in flexible appliance drip pans.
The FloodSaver Slide-N-Fold pans are designed to be used with appliances that are located in hard-to-reach locations like dishwashers. Flood Saver offers customers four different Slide-N-Fold pan options that are priced from $70.50 for the smallest size, to $93.50 for the largest.
Leak-Guard sells drip pans that are specifically designed to be used with dishwasher appliances. The pans cost $34.95 plus shipping. Leak-Guard provides regular shipping for $9.99 or expedited shipping for $14.99. Instructions on how to install the Leak-Guard drip pans can be found on the company's website.
Sears sells dishwasher drip pans that are manufactured by Lisle. The pans are made of plastic and are 24 inches wide, 36 inches long and 1 1/2 inches deep. The pans cost a little less than $27 on Sears.com.
WoodFloorsForever.org sells one basic kind of dishwasher pan for $35 plus shipping and handling. The website also offers another purchase package that includes the dishwasher pan, adhesive strips and two FloorSkydds for $45 plus shipping and handling.
ReliableParts.com stocks a Water Leak dishwasher drip pan that costs around $40 and is 24 inches wide, 20 1/2 inches long and 3/4 inches deep.