# Big holes! **URL:** \ **Category:** General Inspection Discussion\ **Created:** [September 24, 2008, 10:46pm UTC](https://forum.nachi.org/t/big-holes/32218 "2008-09-24T22:46:55Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![rnewland](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rnewland/32/59431_2.png) [@rnewland](https://forum.nachi.org/u/rnewland)\ **Post date:** [September 24, 2008, 10:46pm UTC](https://forum.nachi.org/t/big-holes/32218/1 "2008-09-24T22:46:55Z")
Found these I-Joists today (two story townhomes) with holes cut to route HVAC ducts cables, etc. They were at the center of the span but seemed to be excessive. All the holes were so uniform (all the adjacent units were the same) they looked like the were made that way. What do y’all think? ![I Joist.jpg](https://global.discourse-cdn.com/internachi/original/3X/8/4/84946b3cc822cbb9d0f3c52492149938157533d6.jpeg) ---
**Author:** ![tdietrich1](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/tdietrich1/32/1561_2.png) [@tdietrich1](https://forum.nachi.org/u/tdietrich1)\ **Post date:** [September 24, 2008, 11:00pm UTC](https://forum.nachi.org/t/big-holes/32218/2 "2008-09-24T23:00:09Z")
Oh absolutly beautuful. I’ve seen HVAC guys eat up I-Joists but this is the worst. Mind if I use the photos? Tom ---
**Author:** ![rnewland](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rnewland/32/59431_2.png) [@rnewland](https://forum.nachi.org/u/rnewland)\ **Post date:** [September 24, 2008, 11:14pm UTC](https://forum.nachi.org/t/big-holes/32218/3 "2008-09-24T23:14:00Z")
Help yourself 🙂 ---
**Author:** ![jjonas](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/jjonas/32/301755_2.png) [@jjonas](https://forum.nachi.org/u/jjonas)\ **Post date:** [September 24, 2008, 11:24pm UTC](https://forum.nachi.org/t/big-holes/32218/4 "2008-09-24T23:24:08Z")
Robert, This info from LP… > **[LP\_EWP\_LPI\_18\_Professional\_Brochure\_Overview.pdf](https://lpcorp.com/Literature/LP_EWP_LPI_18_Professional_Brochure_Overview.pdf)** > > 2 B Scroll down to page 5. Maybe it will help Jeff ---
**Author:** ![rnewland](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rnewland/32/59431_2.png) [@rnewland](https://forum.nachi.org/u/rnewland)\ **Post date:** [September 24, 2008, 11:43pm UTC](https://forum.nachi.org/t/big-holes/32218/5 "2008-09-24T23:43:21Z")
Thanks Jeff. Here’s a link to the mfg of the I-joist in my pix [http://ilevel.com/literature/TJ-4000.pdf](http://ilevel.com/literature/TJ-4000.pdf) Note under General Notes it states to leave a min of 1/8" web above and below the hole. Am I reading that right??? ---
**Author:** ![badair](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/badair/32/166699_2.png) [@badair](https://forum.nachi.org/u/badair)\ **Post date:** [September 24, 2008, 11:47pm UTC](https://forum.nachi.org/t/big-holes/32218/6 "2008-09-24T23:47:57Z")
> [@rnewland](#): > > Thanks Jeff. Here’s a link to the mfg of the I-joist in my pix [http://ilevel.com/literature/TJ-4000.pdf](http://ilevel.com/literature/TJ-4000.pdf) > > Note under General Notes it states to leave a min of 1/8" web above and below the hole. Am I reading that right??? Yeppers! \*\*Holes may be located vertically anywhere within the web. \*\* **Leave 1⁄8[size=1][size=3]" of web (minimum) at top and bottom of hole.[/size]**[/size] * * * **Someone’s gonna need a letter stating repair method or replacement** ---
**Author:** ![rshuey](https://avatars.discourse-cdn.com/v4/letter/r/58956e/32.png) [@rshuey](https://forum.nachi.org/u/rshuey)\ **Post date:** [September 25, 2008, 1:08am UTC](https://forum.nachi.org/t/big-holes/32218/7 "2008-09-25T01:08:24Z")
They are made that way. ---
**Author:** ![rnewland](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rnewland/32/59431_2.png) [@rnewland](https://forum.nachi.org/u/rnewland)\ **Post date:** [September 25, 2008, 1:34am UTC](https://forum.nachi.org/t/big-holes/32218/8 "2008-09-25T01:34:07Z")
> [@rshuey](#): > > They are made that way. Can you give us a little more information? ---
**Author:** ![rshuey](https://avatars.discourse-cdn.com/v4/letter/r/58956e/32.png) [@rshuey](https://forum.nachi.org/u/rshuey)\ **Post date:** [September 25, 2008, 12:33pm UTC](https://forum.nachi.org/t/big-holes/32218/9 "2008-09-25T12:33:28Z")
> [@rnewland](#): > > Can you give us a little more information? certainly. Every major manufacturer of engineered wood floor joists will and can put cutouts for electrical, HVAC, plumbing, etc. the holes can be as large as shown in your pics. you need a minimum of 1/8" webbing to maintain minimum structure standards. To put it in an easy to understand format. the cutout circle is kind of like an egg. if you place an egg in your hand and compress top to bottom, it will not break. Same science applies here. The top and bottom plates along with the perfect circle (or sometimes a triangle) will hold all weight needed.