Make your sale a big deal and post it so everyone will see it! Customize a business yard sign for your sale today! You'll drive a lot of customers to your sale with these 2-sided sturdy yard signs. Or change to one sided for a window sign. Get started today! Our yard signs come in single- and double-sided as well as 12" x 18" and 18" x 24" and 24" x 36" sizes.