| ANSI/NWMA | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
| ANSI/NWMA NO. 538 OR FHDA NO.418 | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
| ANSI/NWMANO.538OR | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
| CS120 PATTERN ND538 | 87478 | WESTERN LUMBER AND SHINGLE CO |
| CS120PATTERNND538 | 87478 | WESTERN LUMBER AND SHINGLE CO |
| NO. | 87478 | WESTERN LUMBER AND SHINGLE CO |