# Notch/holes for engineered I joists

**URL:** <https://forum.nachi.org/t/notch-holes-for-engineered-i-joists/40938>\
**Category:** Structural Inspections\
**Created:** [August 4, 2009, 3:28pm UTC](https://forum.nachi.org/t/notch-holes-for-engineered-i-joists/40938 "2009-08-04T15:28:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mnicholet](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/mnicholet/32/180018_2.png) [@mnicholet](https://forum.nachi.org/u/mnicholet)\
**Post date:** [August 4, 2009, 3:28pm UTC](https://forum.nachi.org/t/notch-holes-for-engineered-i-joists/40938/1 "2009-08-04T15:28:47Z")

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It is my understanding that the chords cannot be modified for this type of floor joist. What about the web?

 ![DSCF7076 (Medium).JPG](https://global.discourse-cdn.com/internachi/original/3X/2/3/23e9426f2b294e94e14f32e345d456d510c1a910.jpeg)

 ![DSCF7082 (Medium).JPG](https://global.discourse-cdn.com/internachi/original/3X/e/0/e055b507de1ab15040bf3ef2b228baf0818e3bd7.jpeg)

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**Author:** ![mnicholet](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/mnicholet/32/180018_2.png) [@mnicholet](https://forum.nachi.org/u/mnicholet)\
**Post date:** [August 4, 2009, 4:06pm UTC](https://forum.nachi.org/t/notch-holes-for-engineered-i-joists/40938/2 "2009-08-04T16:06:07Z")

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I found the answer:

[http://www.anthonyforest.com/userguidepowerjoist.pdf](http://www.anthonyforest.com/userguidepowerjoist.pdf)

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**Author:** ![lkage](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/lkage/32/347658_2.png) [@lkage](https://forum.nachi.org/u/lkage)\
**Post date:** [August 4, 2009, 4:12pm UTC](https://forum.nachi.org/t/notch-holes-for-engineered-i-joists/40938/3 "2009-08-04T16:12:19Z")

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It depends on many variables but, with the two notches in the one span, I think not:

[http://www.ilevel.com/literature/TB-806.pdf](http://www.ilevel.com/literature/TB-806.pdf)

and…

[http://www.ilevel.com/literature/TJ-4000.pdf](http://www.ilevel.com/literature/TJ-4000.pdf) (page 11, etc.)

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**Author:** ![mgratton](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/mgratton/32/58251_2.png) [@mgratton](https://forum.nachi.org/u/mgratton)\
**Post date:** [August 4, 2009, 6:22pm UTC](https://forum.nachi.org/t/notch-holes-for-engineered-i-joists/40938/4 "2009-08-04T18:22:09Z")

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> [@mnicholet](#):
>
> It is my understanding that the chords cannot be modified for this type of floor joist. What about the web?

\*\*[FONT=MyriadDomtar2002-Bold]_Cutting the Holes  
[/FONT][FONT=MyriadDomtar2002-Bold][size=5][FONT=MyriadDomtar2002-Bold][size=5]• \*\*[/size][/FONT][/size][/FONT][FONT=StoneSerif][size=1]Never drill, cut or notch the flange, or over-cut the web._[/size][/FONT]  
[FONT=StoneSerif][size=1][/size][/FONT]  
[FONT=StoneSerif][size=1]  
[/size][/FONT]