What are flutes? What is the difference between Vertical Flutes and Horizontal Flutes?
Flutes are the slots/grooves in corrugated plastic. Vertically fluted signs can be used with our wire H-stakes; the stake simply slides into the flutes. Horizontally fluted signs CANNOT be used with wire H-stakes. We recommend using these (printed single-sided) with wooden stakes, or (printed double-sided) with frames.
