As of August 2015, large Greek letters for fraternities and sororities are sold online at Amazon.com, Craft Cuts and Woodland Manufacturing. Amazon.com has unfinished wooden Greek letters 18 or 24 inches high. The products are part of the retailer's Free Shipping program.
Craft Cuts supplies both painted and unfinished outdoor-rated wooden Greek letters. Customers choose from several fonts, including Arial, Comic Sans and Times New Roman. Finished letters come in many possible colors and are matte or high gloss.
Woodland Manufacturing offers large painted and unpainted Greek letters in many sizes and fonts for either indoors or outdoors. A smaller variety of colored metal letters are for sale, as well.