Jane, you are a saint. The first 2 minutes, I already understood it. I just demoed my 5'x8' bathroom and trying to square it up to build out the wall to get a bathtub in. This helped me to make a square inside the room and then see how much it's off in certain areas. I also have to tile and make sure is level, as you know this finicky detail work that takes forever is going to pay off in spades later when actually start tiling and have the bathtub in before I tile :)
This is THE way of "meaningful learning" which we can actually apply to our real life. Solving problems for the Pythagoras's theorem in a class room does not mean anything unless those students use the knowledge for something like this. Thank you for making the bridge.
Yes. I remember doing pythagoras at school thinking "I'll never need to know this" - then 40 years later building my own house and learning the 3-4-5 for setting out! Now if they'd told us the 3-4-5 practical application at school I'd have been far more interested.
It's actual new for me. That you multiplied 3*3.4*4.5*5. Oldly I used to measure feet. If long distance then I go to meter. But u made me simple. Jus multiply. It's good. I learnt something today. Thank you to share knowledge. Appreciate it.
I came here for a refresher on the subject and like it!!!....Subscribed and I have to tell you that the passion for teaching is well imprinted in your voice. I was so relax and focus during the video that I was in shock my ADD was in off mode lol. I will watch all of your other videos now. Blessings to you.
Awesome lessons, I found your videos under searching for something and just kept watching them all. Stuff I do everyday but nice refresher and some thing I knew I was doing but never knew how I got there until you explained!
BEST explanation by far!! I'm a very visual (hands on or monkey-see-monkey-do) learner lol! I zone out when someone over explains a process or has a lot of "fluff" in the demonstration. Thank you so much!!
If I learned the pythagorean theorem like this at school it would've made the lesson more concrete in my brain. You're an excellent teacher. I'll be explaining it to my son when he gets older.
Hello, and thank you for the content. To square up the other end, do you just repeat the same measurements and then for the length you would just set a string line so it is straight? Thank you.
Looking good. Thanks for taking your time to show people this. I hope some of the people that I work behind will see this and use it. Yes this means you Reggie!
Well done...keep them coming. It is amazing how few people coming into the carpentry trade now dont even know these basic skills and dont even care to learn. Good stuff.
I have always been taught that you simply keep doubling your numbers from 345 up to square longer footage.....6-8-10.......12-16-20......24-32-40 etc....the higher the number you go the more exact and squared up it will be. Oh! always measure form the same side of the tape thru the whole process.
You're fantastic at imparting your knowledge to others ... even though I know much of what you teach it's always good to get a refresher or a new tip!!!
For us metric countries I adapted this to metric using leah's numbers if your tape measure is in mm only. So 3,4,5 feet = 300, 400, 500 mm. A bit bigger- = 600, 800, 1000 mm A bigger room can be 3,4,5 in meters :)
I just performed this using a shoe box as I did non have a measuring tape. I still used the 3,4,5 principle. You can use bananas or pencils or whatever, really
i like u r all video i have one question that if there square is not perfect then how to kn ow that which wall side is to be movible to adjust the formula
I love your videos. straight to the point and clear! i've been watching your vids for a lot of reference and it has been so helpful. now i am on a deployment with the us military and you are helping very much!
Leah, I want to thank you for your wonderful videos. You explain things so clearly and give all the information needed to get the job done. Do you have a video that show how to use this formula when laying floor tiles? I am getting ready to do a small bathroom and want to make sure everything looks good when I'm finished. Thank you!
Hi Janice, we don't have a video that shows this formula for laying tiles. However, we do have a video which shows another technique for laying out tile and where to set the first tile in a square or rectangular room. You might find it helpful. Here is it the link: ruclips.net/video/anWYbNVbJtk/видео.html
This is the best lesson ever, some teachers never give us like students, the examples for the real practice in life. And i have to say bigger scale more accurate results. I try it in Sketchup layout. Thanks a lot, i appreciate your tutorial.
Leah, I'm so happy to find your channel! I hate math but THIS I can do....but what if you have a very short wall, say the depth of a refrigerator for example, that will adjoin an existing wall? Thanks for your help!
Any suggestions on how to do this for a house that's out of square? I'm doing a remodel and the house isn't square, so not sure how to reconcile that when building laying out new interior walls. Obviously if I pull parallel off of one wall the perpendicular wall would be off a little and vice versa.
When staking out a new post building, do you decrease your LxW by 1.5” to account for the width of 2x4? Example, if the building is 30x40, do you square everything up using 28.5x38.5? Then use the 3,4,5 etc method?
I just like to say I've always enjoyed it and admire and love your videos some of the things that I can never grasp and never have been able to you just make everything so comprehensible for instance Justice 345 method squaring I mean I never did get it until I just seen this video which seen it way before now thank you so much you're very inspiring
Awesome. I'll have to keep a note of this for when I'm at work. I often have to make sure things are square. Usually a set T-square is large enough, but sometimes I have to measure over a couple of metres.
I have a question . I am working from a 60 ' long barn wall and adding a carport like structure which will be 60' also . I used the 6 8 10 method coming off each corner of my barn . So first off , I set my lines , one from one corner along wall of the barn and marked 8' on the line , then ran a line out supposedly 90 degrees off corner from the wall line . Squared the line as per the 10' from the 8' mark to the 6' mark . After doing so , out of curiosity I put a mark at 6' along the wall line and 8' along the 90 degree line out from corner . I then measure and these marks show that I need to move my line out another 1/2 inch at that point . And that is while the other marks show square . I did the very same things on the other corner that I am working off of and it is doing the very same thing , I need to move the line out 1/2 inch . Which is correct ?
wonderful I have watched many of your videos and you explain it so so so well, you have helped me plaster and many other things, well done and thanks for your help.
+Nam Le Haha exactly, everyone DOES learn it at school. I guess some people don't pay attention to math class because they think that it 'won't be useful unless I'm an engineer'
+Harrison Owen When I learned it in high school many moons ago it was taught as just another geometry principle. It needs to be taught as the practical geometry in the context of construction. I ran into this problem building a fence many years ago. I couldn't get it square to save my life so finally I went to my cousin who happens to be an engineer and he retaught me the Pythagorean theorem to get my fence straight. So I think for many people it is a question of relearning something especially if they haven't used that knowledge in a long time. People forget.
I'm an apprentice tiler and i can't thank you enough, this has helped so much finding my start point
I've seen this explained a couple times before but this is the first time I've ever understood it good video
I knew about the 3 4 5 method but never new for longer lines
Jane, you are a saint. The first 2 minutes, I already understood it. I just demoed my 5'x8' bathroom and trying to square it up to build out the wall to get a bathtub in. This helped me to make a square inside the room and then see how much it's off in certain areas. I also have to tile and make sure is level, as you know this finicky detail work that takes forever is going to pay off in spades later when actually start tiling and have the bathtub in before I tile :)
thanks, Nicholas, and good luck with your bathroom project!
This is THE way of "meaningful learning" which we can actually apply to our real life. Solving problems for the Pythagoras's theorem in a class room does not mean anything unless those students use the knowledge for something like this. Thank you for making the bridge.
Tosh Yoshino You're welcome, and I'm glad you found it helpful!!
Yes. I remember doing pythagoras at school thinking "I'll never need to know this" - then 40 years later building my own house and learning the 3-4-5 for setting out! Now if they'd told us the 3-4-5 practical application at school I'd have been far more interested.
Yee
The wisdom is in the natural applications
This is one of the most basic yet most easily understood way of teaching this method!! Great Job. Natural teacher!
It's actual new for me. That you multiplied 3*3.4*4.5*5. Oldly I used to measure feet. If long distance then I go to meter. But u made me simple. Jus multiply. It's good. I learnt something today. Thank you to share knowledge. Appreciate it.
This is exactly what I needed today. You never let me down! Thank you.
I came here for a refresher on the subject and like it!!!....Subscribed and I have to tell you that the passion for teaching is well imprinted in your voice. I was so relax and focus during the video that I was in shock my ADD was in off mode lol. I will watch all of your other videos now. Blessings to you.
+Noel Rivera Thank you so much, Noel, I really appreciate it. :)
Learned this as a teenager at union masonry school fort Richie Maryland. Very well done and explained.
Awesome lessons, I found your videos under searching for something and just kept watching them all. Stuff I do everyday but nice refresher and some thing I knew I was doing but never knew how I got there until you explained!
jeff brown Thanks, Jeff! I'm glad you found us. :)
BEST explanation by far!! I'm a very visual (hands on or monkey-see-monkey-do) learner lol! I zone out when someone over explains a process or has a lot of "fluff" in the demonstration. Thank you so much!!
You are a natural teacher, good job.
This is perfect. I’m starting my wall in 2 weeks after some demo work. Glad to learn from you Jane.
I would love to go back to school and be your student!! Wow!! Simply amazing!!! Kudos to you!
If I learned the pythagorean theorem like this at school it would've made the lesson more concrete in my brain. You're an excellent teacher. I'll be explaining it to my son when he gets older.
🙀🤣
Finally got it. Short, concise and easy to understand. Thanks
Hello, and thank you for the content. To square up the other end, do you just repeat the same measurements and then for the length you would just set a string line so it is straight? Thank you.
Looking good. Thanks for taking your time to show people this. I hope some of the people that I work behind will see this and use it. Yes this means you Reggie!
Well done...keep them coming. It is amazing how few people coming into the carpentry trade now dont even know these basic skills and dont even care to learn. Good stuff.
+Kevin F thanks, Kevin!
I have always been taught that you simply keep doubling your numbers from 345 up to square longer footage.....6-8-10.......12-16-20......24-32-40 etc....the higher the number you go the more exact and squared up it will be. Oh! always measure form the same side of the tape thru the whole process.
I was just trying to figure out what it would be for 24 , thank you 🤣
Thank you, Leah! This beautifully simple explanation of this is JUST what I needed today!
I know relatively little about building a house from scratch, so I might as well take the chance to learn this as soon as I notice it.
You have the best teaching I found to me comprehend the 3 45 method,thank u.
And Leah nails it....AGAIN!!👍🏻👊🏻😁
You're fantastic at imparting your knowledge to others ... even though I know much of what you teach it's always good to get a refresher or a new tip!!!
Thanks Kanga 1234567
very useful!! i spend hours trying to square a new project, finally decided to look at some videos. You made it look so easy!! 👍
glad to be of help!
No BS ego from this woman. Love it. Thank you.
For us metric countries I adapted this to metric using leah's numbers if your tape measure is in mm only.
So 3,4,5 feet = 300, 400, 500 mm.
A bit bigger- = 600, 800, 1000 mm
A bigger room can be 3,4,5 in meters :)
Thanks Breen for doing the metric conversion.
I just performed this using a shoe box as I did non have a measuring tape. I still used the 3,4,5 principle. You can use bananas or pencils or whatever, really
Breen Whitman 👀
i like u r all video i have one question that if there square is not perfect then how to kn ow that which wall side is to be movible to adjust the formula
I love your videos. straight to the point and clear! i've been watching your vids for a lot of reference and it has been so helpful. now i am on a deployment with the us military and you are helping very much!
Once again, great instructional video Leah, I love your soft demeanor excellent teaching technique.
Thanks Moises
wow you make it so easy to understand, best instructor out here.
You are the best Teacher.. You need to be in Every school. Most people don't need to be doctors but Everyone needs a house.
+Doug Cates Thanks, Doug, I appreciate the compliment!
Doug Cates if only our teachers all had this talent.
That is amazing, I wonder if it can be used for laying out squareness on smaller projects, say using inches instead of feet. Great video, thanks
It sure can. It’s a proven methodology.
Leah, I want to thank you for your wonderful videos. You explain things so clearly and give all the information needed to get the job done. Do you have a video that show how to use this formula when laying floor tiles? I am getting ready to do a small bathroom and want to make sure everything looks good when I'm finished. Thank you!
Hi Janice, we don't have a video that shows this formula for laying tiles. However, we do have a video which shows another technique for laying out tile and where to set the first tile in a square or rectangular room. You might find it helpful. Here is it the link: ruclips.net/video/anWYbNVbJtk/видео.html
Thank you!
You're a good good teacher. Always enjoy your videos.
This is the best lesson ever, some teachers never give us like students, the examples for the real practice in life. And i have to say bigger scale more accurate results. I try it in Sketchup layout. Thanks a lot, i appreciate your tutorial.
telosfd You're welcome, telo, and I appreciate your comment! :)
Leah, I'm so happy to find your channel! I hate math but THIS I can do....but what if you have a very short wall, say the depth of a refrigerator for example, that will adjoin an existing wall? Thanks for your help!
I love all of your videos, Leah. You are an excellent teacher and the info is very useful. Thanks.
+Sherry Blakely you're welcome, Sherry, I appreciate your comments!
Nice work. You make it so straight forward, you're the best
You do such a good job of explaining things. Love it
Thank you so much for making this video, and explaining it so clearly and simply ! VERY HELPFUL 👍
Wow, if I had worked for someone like you as a kid, I’d likely still be in the construction trade.
Sexy
As always, your video is excellent! Thank you for sharing your technique.
You can also use a laser
Any suggestions on how to do this for a house that's out of square? I'm doing a remodel and the house isn't square, so not sure how to reconcile that when building laying out new interior walls. Obviously if I pull parallel off of one wall the perpendicular wall would be off a little and vice versa.
Who said was boring? Thanks for a great share!
Hey thanks for the video !. I want to ask. Does the first number always have to pull of the existing wall ???
Jane is awesome. Nice and simple explanation.Thanks!
Leah is great! you can do anytime after watching her videos!
thanks, Denise!
A master carpenter and a master teacher. Could not be better.
Daniela Kimmich Thanks, Daniela!
Hi Leah, can you show me the method to straight up a wall ? What kind of tool should i use?
Really appreciate your video it was short and right to the point really informative and I can understand everything you were saying
Pythagaros theorem. The square of the hypotenuse is equal to the sum of the other two sides.
Hence 3, 4, 5
When staking out a new post building, do you decrease your LxW by 1.5” to account for the width of 2x4? Example, if the building is 30x40, do you square everything up using 28.5x38.5? Then use the 3,4,5 etc method?
Ohhh thank you ! Nicely explained
I just like to say I've always enjoyed it and admire and love your videos some of the things that I can never grasp and never have been able to you just make everything so comprehensible for instance Justice 345 method squaring I mean I never did get it until I just seen this video which seen it way before now thank you so much you're very inspiring
Trig! Sweet. I've watch a few of your videos and enjoyed every one. 212
Awesome. I'll have to keep a note of this for when I'm at work. I often have to make sure things are square. Usually a set T-square is large enough, but sometimes I have to measure over a couple of metres.
jublywubly Great, jubly, I'm glad it was helpful! :)
thank you Leah tips are great
So Very well explained as usual.
I love your videos, very good teacher! Thank you so much!
thanks Leah
you're welcome!
thank you for sharing your knowledge in such a clear and helpful way!
you're very welcome!
Hi Leah. can you use the formula beyond 9 12 15 on larger walls? Nice video too.
+JR Schultz
I believe it is 15 20 25 then 24 32 40.
+JR Schultz It has been three years since I retired from Carpenters Union and I hope this works for you
You explained that so well. Thank you very much!!
You are an incredible teacher!!!
+David McGiverin Thanks, David, I appreciate it!
She is a good instructor
Wow!!! Thank you SO MUCH Leah!!
I have a question . I am working from a 60 ' long barn wall and adding a carport like structure which will be 60' also . I used the 6 8 10 method coming off each corner of my barn . So first off , I set my lines , one from one corner along wall of the barn and marked 8' on the line , then ran a line out supposedly 90 degrees off corner from the wall line . Squared the line as per the 10' from the 8' mark to the 6' mark . After doing so , out of curiosity I put a mark at 6' along the wall line and 8' along the 90 degree line out from corner . I then measure and these marks show that I need to move my line out another 1/2 inch at that point . And that is while the other marks show square . I did the very same things on the other corner that I am working off of and it is doing the very same thing , I need to move the line out 1/2 inch . Which is correct ?
I want your knowledge. Thank you very much for taking the time and effort to produce these videos.
🙂 you're welcome, and thanks!
wonderful I have watched many of your videos and you explain it so so so well, you have helped me plaster and many other things, well done and thanks for your help.
Freida Zamba You're very welcome, Freida. I'm glad to be of help.
Good stuff Leah! Thank you!
Such an amazing video. 👍🏽👍🏽👍🏽👍🏽👍🏽👍🏽👍🏽👍🏽👍🏽👍🏽
OMG Thank you! Now I can use Pythagorus's for pinning a scarf on the wall.
Thank you for your support!
Would you be able to make a video on how to read blueprints?
HI Danny, yes, I could, and I would definitely consider it for a future video.
put an arc pencil mark at the end of 4 and 5 where the arcs intersect that is where you flick your chalk line through
What if your framing a shed with no existing walls on a concrete pad ?
Thank you for sharing your knowledge 👍👍
Can u do one with the 345 for tile
Thank you so much that's very helpful you explanation so clearly thank you again
Thanks for simplifying this.
fantastic tip. You are the greatest!!!!
Very helpful, thank you!
Has worked for me for past 57 years. Meters too.
Wow, excellent, muchas gracias, I gonna use it. Right know I m building a wall. Outstanding Thanks
+pito2022 you're welcome, glad it was helpful!
Thank you for sharing!
EXcellent video! Thank you SO much!
Great video! Thanks a ton for explaining this method to me , gonna check my new laser to see if its square!
:)
Thank u for this idea mam this is a big help for me...
Nice explaination❤
I know relatively little about building a house from scratch ,so this will help whenever -if ever - it happens.
+Ato Cox Yes that's me ato2000, 2 ccomments below.
Thank you for making this so simple! Great video! My husband and I subscribed😁
I LUV this!
Subscribed!
Love it very well explained
AWESOME teaching-EVERY kid should learn this stuff in school....and you should be teaching it!!
+Jamie St Mark Thanks, Jamie, that is very nice of you to say!
+Jamie St Mark It's a Pythagorean triple Highschool geometry.
+Nam Le Haha exactly, everyone DOES learn it at school. I guess some people don't pay attention to math class because they think that it 'won't be useful unless I'm an engineer'
+Harrison Owen When I learned it in high school many moons ago it was taught as just another geometry principle. It needs to be taught as the practical geometry in the context of construction.
I ran into this problem building a fence many years ago. I couldn't get it square to save my life so finally I went to my cousin who happens to be an engineer and he retaught me the Pythagorean theorem to get my fence straight.
So I think for many people it is a question of relearning something especially if they haven't used that knowledge in a long time. People forget.
writerconsidered I agree that it's hard to first see its practical uses, but what is taught in high school is usually quite useful.
How about to start a control line and work frome there?
Interested would like to learn more from you
Great video! I did a test of one of the interior walls of my home and found out that it was 40mm out of square!
Great info thanks.
Great explanations in your videos! Thanks for your help and sharing. I've learned a lot watching your videos. Thanks!