Some types of lawn signs are corrugated plastic, poly bag, poly-coated cardboard and steel frame. These signs are typically supported with wooden stakes or wire frames. Lawn signs are most commonly used to advertise political candidates, real estate, small businesses and short-term special events by placing them on residential lawns, along a roadside or on a traffic island. Lawn signs are also known as yard signs, road signs, bandit signs and placards.
Corrugated plastic signs are inexpensive, lightweight and sturdy, and they can be easily cut into unusual shapes. They are printed using digital printers or screen printers for high-volume runs. The top of a wire H-frame slips into the sign, and the bottom of the frame is stuck into the ground by pressing down on the crossbar.
Poly bag signs are printed plastic bags slipped over a heavy wire frame. These signs are extremely lightweight, stand up to wind and rain, and are inexpensive to screen print in large quantities when using only one or two colors.
Poly-coated cardboard signs use a single piece of cardboard folded and stapled around the edges. The coating helps to resist damage from rain. These signs may use wire frames, but they are typically installed with an inexpensive wooden stake.
The most durable lawn signs are steel frame signs that use steel for both the frame and faces. These signs may be screen-printed or digitally printed for full-color signs with photos.