Learn about how to measure for Square in Construction - TEACH Construction Trades Training Video

This lesson provides the basics of squaring in construction. Learn about Plumb and Level, the 345 triangle, and equal diagonals - all methods of determining if something is square. A needed skill in Wall Framing and all types of construction.
If you are interested in taking one of our full courses - consider enrolling at tradeskillsu.online/
If you are a teacher and in need of instructional resources - I highly encourage you to review what we have to offer at teachconstruction.online/
0:00 What is square?
1:45 Tools for squaring
4:35 Pythagorean theorem and 345 triangles
10:30 Squaring using equal diagonals

[@stansbruv3169]

You are an excellent presenter/educator and you guys put together great content. Keep creating this content and the viewers will come. The combination of scale model framing with the graphics are perfect. Thank you!

[@ConstructionEd]

Thanks for the kind words Stan. The main distribution of our Instructional Resources is through subscriptions from Schools. The videos on this channel is only a portion of our content and we have many teacher resources that support these video lessons. And teachers get interactive videos vs the straight video. But we will keep providing a portion of our resources to the public through this channel - I hope you watch more of our lessons

[@tangarden9750]

So much lumber is bowed/ crooked especially big box stores. Could not square my double gate due to this. Sighting lumber choice re true edges is a must. Enjoy this channel so much. I’m an old man learning.

[@ConstructionEd]

Thanks for sharing. Good Lumber is hard to come by nowadays

[@The9mmProfessor]

WoW ! So glad I found this channel. This is amazing. I enjoy this very much. I love learning this material. Fifty Three Years old and I am wishing I would have started in this field way earlier. But, Hey ! Better late than never. Thanks for this. Keep 'em Coming.

[@ConstructionEd]

Welcome to the TEACH community - Hope you watch some of our other videos - there is almost 100 of them by now.

[@carolcudby2482]

Thank you so much for teaching us the most important basics building.. I watched your video on the nailer corner and replicated the technque.. It's has worked well. Iye completed my 2x4 frames which are all square, nailed in place and level. Re squaring my frames I've been using the corner to corner angle squaring which has worked well. It's a separate 2x4 window frame, I'm having a problem getting it square, Hence watching your video Like you've explained its a to & from thing until you get it right. I've decided I'll invest in a Frame square which I know will be very helpful. I have all the other necessary tools, just not the frame square Thank you so much for helping and teaching us the correct techniques in construction. Really appreciate watching your informative and clear teachings in construction..

[@ConstructionEd]

I am glad it all worked out for you.

[@filldev]

A clarification that I hope is helpful: You stated that if the diagonals are equal, then we know that the angles are 90 degrees AND that the sides are parallel. However, to conclude that you have a rectangle based on equal diagonals, you would also need to confirm that opposite sides are either equal or parallel. You actually measure to confirm opposite sides are parallel at a different point in the video, but it was to show that parallel isn’t enough. To demonstrate that diagonals aren’t enough, draw two equal length lines crossing at some random place and angle. Now connect the ends to form a quadrilateral. Pretty easy to make one that’s clearly not a rectangle. A kite with equal cross pieces is a simple example. This doesn’t refute the method of measurement; simply verify that opposite sides are equal or parallel in addition to equal diagonals, and you’re good. Also, huge respect for your teaching!

[@ConstructionEd]

Thanks for the the additional explanation

[@LetsTalkAboutIt104]

Thank you very much for lesson

[@luismatos2239]

Maestro saludos Siempre aprendiendo de usted Emos sido dichosos y bendecidos Gracias hermano Un abrazo 👍

[@charlesviner1565]

Great videos 👍

[@andreicojocaru5812]

The best info channel

[@ConstructionEd]

Thanks Andrei

[@royrodgers3296]

Drop a bob snap a line and 3 4 5 it. One of the first things I heard as an apprentice! Love your videos, as a glazier I get a ton of knowledge from your videos through the perspective of another trade

[@ConstructionEd]

Glad to have you here - enjoy the rest of our videos

[@bpunia6555]

Awesome video thanks for education ,I learned a lot

[@ConstructionEd]

Glad you liked it

[@HomeImProveMentHow]

This is so important especially for The beginner this is a must know thanks for sharing. *You're doing a Bang Up Job👍💥 **#207*

[@ConstructionEd]

Thanks for the kind words

[@josaniriv]

Thanks!

[@ConstructionEd]

Thank you very much and glad you enjoyed the lesson

[@user-gv7je9nu2i]

thank you so much

[@ConstructionEd]

Welcome 😊

[@giovannilugas3639]

I love the book support made with speed squares!

[@ConstructionEd]

thanks

[@kimlester5514]

Freaking awesome videos!!

[@ConstructionEd]

Glad you like them!

[@christopherdekonstrukt444]

Plumb bob is good when you have nothing to reference a level on. I have to mount a post in the middle of my patio roof and will use a plumb bob to find the exact place to mount the Simpson connector in the concrete form for the 4x4 post.

[@ConstructionEd]

Great plan - is your roof sagging

[@62Cristoforo]

’Plomb’ is French for lead (the heavy metal). The word ‘Plumber’ comes from this root word, as early plumbers used molten lead to seal pipe joints.

[@ConstructionEd]

Thanks for that - glad we are not plumbing with lead pipes anymore.

[@mahergindy1588]

Can you make a video about the ceiling Joyc

[@pwsoultrainn4090]

Great way to teach with miniture frames...do you teach building frames using miniture frames. Do you have online tutorials with you as the teacher

[@ConstructionEd]

we do, those models are from our framing series at that is available on our KZbin channel. Now we also use 3D models that are available in our floor and roof framing courses at TradeSkillsU.online

[@flowgood123]

Can individuals take this course ? it would be very good to know for home repairs.

[@ConstructionEd]

Individuals are welcome to take any of our courses at our learning portal TradeSkillsU.com. The tuition helps underwrite the teaching resource we make available to schools for no cost.

[@christopherdekonstrukt444]

I had to learn the Pythagorean theorem for AC electricity.

[@ConstructionEd]

Are you sure? Not sure about the applicability of the Pythagorean Theorem for electrical work. Could that have been Ohm's law? That would be in electrical.

[@Gaglibu]

Great video on measuring squareness. However in real world nothing is perfect. how much can you be off when you measure for square - off by 1/4, 1/8, 1/16 or 1/32? striving to be Exactly square dries me crazy when making adjustments w no so petfect 2x4s

[@ConstructionEd]

How out of square all depends on what you are building. Sorry , there is no definitive answer

[@user-rcghjewqw]

You must be as precise as you can. First using 3 4 5 inches will not give you any accuracy. Because if you mesure 5 1/16 inches hypotenuse this will give you 91.5 degrees angle and 2.5 inches of sideway deviation on 8 foot wall. If you use 12 16 20 inches triangle and mesure 20 1/16 it will be 90.37 degrees angle will result in 9/16" offset on 8 foot wall

[@dwaynerobinson7629]

The problem is as the errors stack up, they build on one another until you're really out over the total distance. The 3-4-5 will work well and the LONGER the distance, the better. Start with inches and check at 3&4 feet or as mentioned a variation of it. 3-4-5 inches 3-4-5 feet 12-16-20 feet. Any multiple of 3-4-5 will result in a square corner and keep the wall running true. As with most things, the more ways you know to validate this, the better. If you use 3-4-5 and diagonals, you'll have more support for the result than if you only used one or the other. Just remember, if you use diagonals, you must measure the same spots. Inside to inside or outside to outside AND tilt your tape at the spot so you can see EXACTLY where that measure falls on the corner.

[@mikestumpf8074]

What size lumber did you use for your mock up?

[@ConstructionEd]

we have a video about that on our Teachers Channel - kzbin.info/www/bejne/lXKZpmOlhp56q9ksi=yPrStoQDQDcXn7px

[@awescurlado3484]

I got an associate's in construction management and did not learn this wish you where my teacher at Oklahoma state university

[@ConstructionEd]

Maybe next time - or tell your teachers that we have instructional resources for them to use.

[@TheMohadam]

Why topography is not involved?

[@ConstructionEd]

I am not sure what you mean, please explain

[@gurindermann89]

I like your videos, but the new videos are mostly being repeated. Please bring in more advanced content. Thank you.

[@ConstructionEd]

Thanks for the comment - the repeated videos you are seeing are intermingled with new content. We are updating videos we made about 3 years ago to make them better. But we also added many more videos this month in our wall framing series.

[@paulmifsud]

Thanks!

[@ConstructionEd]

that was very kind of you - I hope you enjoy other video lessons that we have.