Notching A Floor Joist. The distance from the center of the notch to the end of the beam. A notch may not exceed one -sixth of the depth of the joist except at the very end where it may be one -fourth of the joist depth.
The distance from the center of the notch to the end of the beam. R5028 Drilling and notching. Notches in floor joists may occur in the top or bottom of the member but may not be located in the middle third of the span.
Technical Bulletin TB-818 provides technical information for analyzing and repairing TJI joists with side top flange notches when necessary.
A notch is generally a 3 sided cut in the joist where the 4th side is open at the top bottom or end of the joist. From the side they look like a steel I-beam. Notches in the top or bottom of joists shall not exceed one-sixth the depth and shall not be located in the middle third of the span. Technical Bulletin TB-818 provides technical information for analyzing and repairing TJI joists with side top flange notches when necessary.
