IB Series I-joists are prefabricated structural framing members used in lieu of sawn lumber joists and rafters for commercial and residential construction.
IB400, IB600, IB700, IB800 and IB900x I Joists are wood I-joists available in lengths up to 52 feet and in depths ranging from 7-7/8 to 24 inches.
Code Compliance Research Report
| Evaluation Method |
Building Code |
CCRR No. |
ASTM D5055
ICC-ES AC14 |
2024, 2021, 2018 IBC
2024, 2021, 2018 IRC
2023, 2020 FBC (including HVHZ) |
CCRR-0322 |
FIRE RATINGS
| Standard |
Rating |
Design Number |
| ASTM E 119 |
1 hour |
IB/WIJ 60-01 |
| ASTM E 119 and CAN/ULC S101 |
45 minutes |
IB/MWP 45-01 |
| ASTM E 119 and CAN/ULC S101 |
1 hour |
IB/MWP 60-01 |
| ASTM E 119 and CAN/ULC S101 |
1 hour |
IB/MWP 60-02 |
| ASTM E 119 and CAN/ULC S101 |
1 hour |
IB/MWP 60-03 |
| ASTM E 119 and CAN/ULC S101 |
1 hour |
IB/MWP 60-04 |
| ASTM E 119 and CAN/ULC S101 |
2 hours |
IB/MWP 120-01 |
