I-Joist Technical Information

Updated October 2018:

KOTT I-Joist Design Guide  – span tables, hole charts and physical properties for LPI 20Plus, NJ40H, NJ60H, NJ40U, NJ60U – all depths

Installation Guide  – LPI 20Plus, NJ40H, NJ60H, NJ40U, NJ60U

Older versions:

KOTT I-Joist Design Guide – Nascor – span tables, hole charts and physical properties for Nascor Original series (NJH10, NJH12, NJH14, NJH16)

Installation Guide – Nascor – Nascor Original series (NJH10, NJH12, NJH14, NJH16)