Timber Trusses (with SketchUp)


Medeek
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After three weeks of non-stop coding I needed a break so I spent the day at the track (walking, I’m too old to run anymore) and then spent the evening digging up docs on Bryant furnaces. Surprisingly the dimensional data is quite accurate and thorough, here is the result:

 

 

Six actual models added, but really there are only three sizes (17.5, 21, 24).

I’ve been giving the calculations more thought and if I am able to incorporate that into the plugin then the BTUs, and other specs on these furnaces will also come in handy. I will probably need to create some sort of database or flat text file that has all the pertinent data on each furnace and the ability for the user to enter in custom furnaces and other appliances.

I always find that doing some low level modeling has an almost therapeutic effect. Maybe SketchUp is just such an fun to use and intuitive modeling environment, either way I find it to be a great way to relax and unwind.

 

All of the assets (furnaces, AC units, heat pumps etc...) will be part of the HVAC plugin and I think will be a great resource for anyone doing any sort of 3D modeling regardless of their platform.  I'm basically doing the heavy lifting for you so you don't have to spend countless hours modeling off the shelf parts and products.

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Version 4.0.4 - 07.13.2025
- Added the following steel post types to the post module: Round (HSS), Pipe (NPS).

 

I'm not sure why I never added a "pipe" option in before, I guess no one ever asked until now.

I will need to add more sizes but I now have the most commonly used sizes from 3" to 6" DIA.

 

 

wall_su994_800.jpg

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[b]Version 4.0.4b[/b] - 07.14.2025
- Added springfield plates to the post base and post cap libraries (for 3.5" and 4.0" pipe).
- Added the following Simpson post caps to the post module: LLC35_35, LCC35_4, LCC45_35, LCC45_4, LCC525_35, LCC525_4, LCC6_35, LCC6_4, LCC7_35, LCC7_4.

 

If I'm going to add in this new "pipe" post then it stands to reason that I also add some appropriate bases and caps to match.

wall_su995_800.jpg

wall_su996_800.jpg

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Version 4.0.4c - 07.15.2025
- Added the following Simpson Strong-Tie holdowns to the wall, column and shearwall modules: HDUE3, HDUE5, HDUE7, HDUE9, HDUE13, HDUE17.

 

Looks like Simpson added this new replacement for the HDU holdown in May of this year.  I just noticed this morning so I added them in.

 

https://www.youtube.com/watch?v=L-pa7M1g7dM

 

Note that these are low poly versions of the holdowns based directly off of the geometry provided on Simpson's website.

wall_su997_800.jpg

wall_su998_800.jpg

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Version 4.0.7 - 07.20.2025
- Enabled the polyline draw mode for all wall justification options: Front, Center, Back, Sheathing.

Tutorial 72 - Wall Justification (7:16 min.)

 

 

 

I've wrestled with this issue since 2019 and up until now I have never been able to come up with a simple and satisfactory solution which allowed for the polyline draw mode.  However, after giving it some additional thought this morning after responding to some suggestions by a power user I realized that I already had the solution in hand (from the recently released corner connection tool - Version 3.9.8).  I only had to implement it and after a few more hours of testing and refining the logic I think we finally have a workable and robust solution for justified walls. 

 

Thank-you guys for hounding me on certain issues.  Sometimes it takes a while before the solution reveals itself to me but eventually it usually does, I just have to put my thinking cap on a few times.  Again, the squeaky wheel gets the grease. 

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Per customer request I will add in an LSL option for the framing very shortly:

 

I'm using the updated LSL texture I created for the Floor plugin, but I still feel like it is a bit dull or dark compared to my previous texture (OSB).  It could be a bit more vibrant or saturated.  I will need to spend some more time on this.

Weyerhaeuser sells their Timberstrand line of LSL framing and studs:

 

https://www.weyerhaeuser.com/woodproducts/engineered-lumber/timberstrand-lsl/timberstrand-lsl-framing-lumber/timberstrand-lsl-wall-framing-studs/

 

However, I would always worry about water damage.  What happens if the LSL gets wet?  We all know what happens to OSB, and plywood is a much more robust product in comparison.  Standard lumber seems like a much more resilient choice when it comes to potential water damage, but I could be wrong.

wall_su1002_800.jpg

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Some Youtube viewers of this video reached out and told me that they had more equipment than could reasonably fit within such a small structure.

 

 

I agree, maybe a 16'x12' space is a bit cramped for anyone, especially if you are also using it for a content creation studio.  This is where the parametrics of the extensions come in real handy:

 

https://3dwarehouse.sketchup.com/embed/aa7589c0-5dde-498d-ba91-ba73e1a68791?token=YhzP4g4wwgE=&binaryName=s21

wall_su1003_800.jpg

wall_su1004_800.jpg

wall_su1005_800.jpg

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