Changing Floor Joists Type


DIYAdam
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Hello,

I have a situation where in need to change the floor joists type from I Joists to Lumber 2X10" to match the existing house. Some of the steps I have taken are.

1. I went to the default settings -> Framing  then clicked Edit and under both Subfloor  Floor -1 and Floor -2 I changed the Joist type to lumber but the cross section doesn't show lumber still shows I joists.

2. I can click on each individual Joists and change it to lumber and then is displays correctly. I do receive the warning telling me that my "automatic floor ceiling rebuild is turned on would you like to turn it off."

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The ideal way is to set the defaults first, then draw.

 

Setting the defaults afterwards requires that you force a rebuild of 1st floor, floor framing by rebuilding the foundation.

 

You should check, and leave checked, Automatically Rebuild Foundation.

 

If you have a 2nd floor already built and wish to change, change the structure here and check rebuild.

 

ht1.thumb.jpg.2e41fdbdd281f1b3307203671bbb3d02.jpg

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This is how the Defaults look on my PC looks like I'm missing some options but I will inquire bout that later.

 

Capture1.thumb.JPG.b382291f4fcc68ff4e06b0011dccf313.JPG

 

 

I deleted and rebuild the foundation but Still No luck on changing the Joist Type :(  I may Just have to redraw the thing.

Capture.thumb.JPG.e6731c556cfde716b2a740d3426bdd32.JPG

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  • 2 months later...

so are you wanting exposed pine beam ceilings?  I'm a little confused how you are calling your floor levels your concrete slab should be layer "zero" then the floor with the walls is layer "one" and so on.

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Unclear what you are asking.

The slab is UNDER floor 1

 

It is clear that what ever I do the floor 2 structure is concrete when it needs to be 2x8 or similar - I specified PINE BEAM, no, no need to expose the beams either

 

 

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Maybe this helps, from the help file.

The floor framing for a given floor is always created on the floor below. As such, the floor framing settings for a given floor are found on the Floor panel for the floor below it. For example, the floor framing settings for Floor 2 are found on the 1st panel, while the floor framing settings for Floor 1 are found on theFoundation panel. See Floor and Ceiling Platforms.

In order to create the floor framing for Floor 1, a Floor 0 must be present. If a Floor 0 has not been built, the Build Floor Framing checkbox on the Foundationpanel will not be available.

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well that is very confusing, convoluted and just not clear at all.

 

at 0 its a foundation, sounds spot on - did you look at the model?

 

at 1 it says floor supplied by the foundation room below

and

monolithic slab

 

so as far as I am concerned - that is correct 2.

 

 

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  • 3 weeks later...

No and yes, it does not work.  I stated real clear, the first floor is concrete, I do not want the second floor to be concrete - if the assumption is it's a full floor, it comes out as that & can't change it.

 

It still doesn't work if you follow the instruction of this room over a garage (I started there to begin with before posting the question).

 

 

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