TJI® Joists are engineered wood products, which have been designed to replace conventional wood joist members. The flanges of TJI Joists are formed from solid sawn lumber, laminated veneer lumber, or laminated strand lumber; and the webs are formed from oriented strand board (OSB).
*NOTE: TJI is a registered trademark of Weyerhaeuser
FIRE RATINGS
| Test Standard |
Rating |
Design Number |
| ASTM E119, CAN/ULC S101 |
45 Minutes |
WNR/FCA 45-01, WNR/RCA 45-01 WNR/FCA 45-06 |
| ASTM E119, CAN/ULC S101 |
1 Hour |
WNR/FCA 60-01, WNR/FCA 60-03, WNR/FCA 60-05, WNR/FCA 60-08, WNR/FCA 60-11, WNR/RCA 60-01, WNR/RCA 60-03, WNR/WI 60-07, WNR/WI 60-12 |
| ASTM E119, CAN/ULC S101 |
90 Minutes |
WNR/FCA 90-01 |
| ASTM E119, CAN/ULC S101 |
2 Hours |
WNR/FCA 120-01, WNR/WI 120-03 |
