These placard holders are the same design as our PH223 series, but have the corners “clipped” for use on roll up doors. Measuring 14.875” across from clipped corner to clipped corner.  Manufactured out of high quality aluminum with a stainless steel clip to ensure longevity even in the worst conditions, these placard holders have 10 pre-drilled mounting holes for ease of installation. Holder has a formed ramp at the clip to guide placards easily over the clip during removal. Back plate has several raised bumps that keep plastic placards from becoming stuck in the holder during winter weather.