... and you're ready to mud.The Perforated Corner Bead are adapt to framing iregularities and ... ', 10' and 12' lenghts. Easy to install corner support can be nailed, stapled, or installed with a high ... ', 10' and 12' lenghts. Easy to install corner support can be nailed, stapled, or installed with a high ... ', 10' and 12' lenghts. Easy to install corner support can be nailed, stapled, or installed with a high ...