Lawn and Event signs are most often printed on 4 mil white coroplast (corrugated plastic), are printed on either 1 or both sides, depending on their intended use. Sizes available range from 12x18" to 4x8', with the most popular being 24x18" and 24x36". Because of the 4x8' starting sheet, those 2 sizes are the most economical as there is no waste or odd cutting. 24x18 lawn signs are usually displayed with a standard 30" wire H-Stake. The 24x36 event signs are usually displayed with an A-frame or sandwich board.