Six Examples of How Second-Story Walls Are Supported - Structural Framing and Engineering

[@baba-sm1fm]

On the first example, it is a good way to support a wall, but is important to specify it all depends on the size and span of the floor joists under the wall, as well as the weight above the wall. All these factors are of the essence in avoiding a floor sag and eventually collapse.

[@ChrisBrooker]

Hats off to your videos always giving me the exact quick simple answer to my questions that I need. Cheers from an audio engineer turned amateur architect!

[@constructionideas]

Great to hear!

[@nicholasstephens1349]

Super helpful. I have watched a lot of your videos and learned so much. Thank you.

[@constructionideas]

You are so welcome!

[@REktSigMa]

1:28 notice that the center beam under the first-floor subfloor is a continuous beam, and not just piers. I have seen structures like this sitting on top of piers without a solid beam from one end to another. Piers like every 3 or 4 foot a part. Now they would have floor joust running the opposite direction, but still, this has nothing to do with a wall running crossways on the 2nd floor.

[@tarahelton5077]

How can I add a second floor inside of a prebuilt block building that already is tall enough for a second floor inside??

[@billygraham5589]

Would like to se a video on building permanent foundations for mobile homes. Do you want to take them off their metal chassis or leave them on the chassis? And what about those stilt platforms for manufactured homes when located by the beach? Or setting a manufactured home on a flat slab?

[@sams4464]

Hi I have a pier and beam home that’s currently a single story. I want to add second floor but because it’s pier and beam I’m wondering if it would be more costly. Some one said I have to change the type of pier and beam I have. What do you advise?

[@rhysharris3064]

Hi, i am doing a 6 metre by 5 metre 2 story building/maimai. Can i get away with just wall joists around all 4 sides and then just 6 by 2s along the top? Or will i need something in the centre to support the structure or brace the wall? Cheers

[@adymaill]

Hi I just wanted to say that I am thankfull for what you did here and in your website. I will watch all the videos. Thank you so much. Not everyone wants to share information and ideas. I am a young architect and new at the timber frame construction. I like the idea of constructing wood houses. I am always searching for a new information, learning as much as I can. Thank you for this. I subscribed.

[@constructionideas]

You're welcome and thanks for the nice comment. Keep learning.

[@robertlane8209]

Can you show an outside second story wall?

[@michaelosborne4050]

Very clear sir .. just framing my second floor 24x28 .. I ran a six inch footing in basement with 3 2x8 s to make a beam supported by 5 4/12x 6” posts .. I’m planning to do the same now on second floor following over the beam on the first floor wall. Beams are up to the level of the sill plate. , right now I’m putting the second floor beam on the wall plates right over the 41/2 x 6 beams . And my cross 2x10 joicess will be up 8 inches more . Is this ok .. I want to do this to get more heighth.

[@Scorpiomaj27889]

If the upper wall is not load bearing, can we skip the double joists and double studs? We're looking to split a large room on our second floor, the only 'load' would drywall and some attic insulation.

[@constructionideas]

You didn't hear this from me, but I've seen it done plenty of times in the past.

[@TheAngriestGamer.]

which one of these examples would i use for a 2.5 story house, with a attic that i intend to make into a finished space, as well as super heavy slow load?

[@constructionideas]

Anyone of them that would be approved by an engineer or one that you think might work best, but since I can't provide you with structural engineering advice, I won't be much help.

[@doctoryun3520]

hello, I have a question. in an old apartment, is there an asbestosis material in the ceiling in between floors?

[@journaltimeyulc.5603]

How do you frame a flat roof? what are the best trusses to use for a flat roof?

[@constructionideas]

You can contact a roof truss company in your area for more info.

[@michaelkmiotek7965]

I want to build a two story cabin with half of the second floor without a floor. That seems simple enough. The problem I anticipate is the amount of water coming out of the hill. I'm thinking I may need to install a diagonal underground wall to shunt the flow. The cabin is just above a spring pond. Then for a foundation, maybe steel poles driven until they hit rock?

[@constructionideas]

If there's a question in there, I might have missed it and feel free to re-ask it. I don't know if I would build something in the ground where there is going to be a steady supply of water.

[@constructionideas]

If there's a question in there, I might have missed it and feel free to re-ask it. I don't know if I would build something in the ground where there is going to be a steady supply of water.

[@U2BER2012]

The last example seems like the best one to handle almost any load.

[@Warringkoo]

But not the most cost efficient

[@U2BER2012]

@@Warringkoo No doubt.

[@patriciabrown9274]

How much support would I have to add in basement to install an island in the kitchen that will be four 18-24" cabinets topped with 13 square feet of granite?

[@constructionideas]

I'm not an engineer and will not provide you with information. Keep in mind that most floors are designed to support 40 pounds per square foot and you might be able to use the existing floor as is with no modifications.

[@Jay-tk7ib]

In my area, you can simply block between joists that sit on each side of a load bearing wall above. This is instead of doubling the joist. I don't know if this is permitted everywhere.

[@constructionideas]

Yes, I'm not about to suggest that it can always be done, but it's something we've done in the past. Blocking works great for walls with plumbing pipes that would have a difficult time going through a double joist.

[@arthurp19]

Glad I found your videos, really great content.

[@constructionideas]

Glad you like them and thanks for watching.

[@icanreachit]

In the first example where the 2nd story wall is load bearing and is perpendicular to the floor joists, do you need to increase the size of the floor joists for the load somehow? Ex: The area is a sleeping area so you use the 30/10 span tables. Which span tables would you then use if you added the 2nd story wall? Thank you

[@constructionideas]

Most the second story framing requires a 40 pound per square foot load. You might need to increase the floor joist size, but it would depend upon the amount of weight that the load bearing wall would be supporting. For example if you have a load bearing wall supporting ceiling joist and roof rafters, it might need to be 2 x 12, but if it's just ceiling joist, 2 x 10 might work.

[@jimmyli8129]

Thanks for the info. In the second example, can I remove the first floor wall in the middle without adding any post? Do I need to add more joists or strengthen the outside walls to achieve that? Thanks.

[@constructionideas]

You would need to check with an engineer. If it's a load bearing wall, it could be replaced with a beam and posts. Don't forget to use the website for more helpful videos.www.homebuildingandrepairs.com/engineering/index.html

[@jimmyli8129]

thanks!

[@constructionideas]

You are welcome.

[@jameswiggin9939]

I'm looking to build a 24x30 garage with a second story on it. The upper level will be one large space with no interior walls. I'm trying to determine how I should frame this 2nd story?

[@constructionideas]

If you need more information on lumber sizes, then you would need to contact an engineer. If not feel free to rephrase the question.

[@mikealtes]

Thanks for share your knowledge.

[@irshadahmadsheikh7355]

can we shift the walls of a building in the first floor except outer walls, I mean can interior walls run over the slab not over walls of ground floor in a two story building, we have used 16mm rods in the slab of ground floor. Thank you

[@constructionideas]

You cannot move load bearing walls or structural shear walls. These walls are usually supported by footings that are built into the concrete foundation.

[@zulaab123]

Excellent

[@constructionideas]

Thank you so much 😀

[@MrDenx-lq2wj]

Best..more helpfull

[@constructionideas]

Glad it helped

[@legacyvalley]

brick homes built in the late 1940's, do they have solid foundations so to add a second floor?

[@Scorpiomaj27889]

Around here most brick houses are on cinder block or other types of block walls, actual basement floor could be soil, but blocks should go far down. Just my personal experience.

[@constructionideas]

Most a single story homes, whether built out of wood or brick don't have sufficient foundations to support an additional story or level. You would need to contact an engineer for more information.

[@primalfury2011]

arent ther footing only need to be twice the size of the post ??

[@constructionideas]

I've never heard that one before. Footings come in a variety of different sizes and will be larger if supporting more weight.

[@alexmaltais8751]

Hey ! How do you know if the structure is solid enough?

[@constructionideas]

Solid enough for what? It all starts with a good concrete building foundation and the right structural components, to make a sturdy structure.

[@samosavegetarianphiladelph7211]

I have plan how can make my plan in to 3 D ?? Any one have idea

[@constructionideas]

Look for 3d home design software.

[@johnkostek9052]

Thank you for sharing

[@cedricagion8249]

Thank you.

[@constructionideas]

You're welcome and thanks for watching.

[@benny41must]

Exactly what I had in mind thanks

[@irshadahmadsheikh7355]

3 interior walls have been shifted

[@irshadahmadsheikh7355]

this is not a column structure but a brick masonary structure

[@irshadahmadsheikh7355]

wall breadth is 9 inch

[@irshadahmadsheikh7355]

you mean even in a residential building of 1000 square feet

[@voiceofBridegroomandthebride]

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