How To Calculate Length of Stair Stringer - Easy To Understand Construction Tips

[@aprilhumen1229]

I’m building stairs for my daughter’s doll house. Your videos have been so helpful! Thank you!!

[@stairbuilding]

That is awesome!

[@CaptK-py8rq]

Nice explanation for interior stringers, thank you. Now when One's building stairs for a deck, very rarely do we have a 90 degree angle. More often than not we have an obtuse angle and in rare instances, an acute angle, hence, in essence, we need to calculate the height from top deck to where the farthest ground tread will make contact, whether it be a pad or whatever, which of course, is equally as simple. I only mention this for anyone thinking this is the only way to calculate stair stringers, and many beginners may not think outside the box. You may have covered this subject in other videos, if so, my apologies. Again, very good, clear explanations for someone wanting to learn the basics on stair building.

[@stairbuilding]

Good point and I will put your suggestion on my list of videos to be made.

[@Japone81]

This man’s videos are always a great refresher or for first time stair builders an incredible catalogue of knowledge 👍🏾

[@stairbuilding]

Thanks for the kind words and keep learning.

[@chairfarmer1511]

Edit: I watched again and I think I have it. Great videos! I have stringers that were put in for carpeted stairs. I'm moving to hardwood. Codes have changed and rise and runs are very inconsistent anyway. New stringers are needed. I can"t determine overall height due to sheet rock underneath stringers and there is a door framed in below the second floor stair opening thats blocking access to first floor. Any suggestions? I'm stuck and suspect original stringers were cut too short. Thank you!

[@robertchoutka3191]

04:50 HINT: To save time and eliminate errors, you can put the total of the first calculation [ 5,929 ] into the calculator's "M+" button; then put the total of the second calculation [ 2,756.25 ] also into the calculator's "M+" button. THEN press the "MR" button to get the total [ 8,685.25 ] . Then press the "square root" button to get the answer. EASY - PEASY 🙂

[@michaelduyen]

Chiều dài cạnh huyền bằng căn bình phương hai cạnh góc vuông. You make e remember what my teacher teach me, now it can be used :)

[@theillestKP]

You did a terrific job explaining this subject!

[@stairbuilding]

Always glad to hear that!!!!

[@racquelthomas3464]

can we have a video fom planing buying and building the stairs. suggestion a u shaped stairs with a simple landing.? i really want to learn this. so very interesting.

[@stairbuilding]

I can do better than that, go to our website and click on our books link for a variety of different stair building books. If you don't want to do that, go to the website and check out more of our helpful videos.

[@marcellino1956]

66 years old and i just learned something new....thanks

[@stairbuilding]

Great and keep learning.

[@arthilliker3721]

Thank you Sir !! You scared me a little when you got out the calculator, but the fuzzies went away as soon as you explained it !! LOL ! This is EXACTLY what I needed to know ! I think yours is the ONLY video explaining how to find the length of lumber I needed !!

[@stairbuilding]

Glad it helped!

[@cheerswithimran]

Hi there, how did you find out you need 77" of length? Is there a grade or angle?

[@stairbuilding]

You need to find the amount of risers first, then you can figure out how many steps you need. www.homebuildingandrepairs.com/stairs/index.html

[@brianwiseman9518]

This video leaves the same questions as the first 5 videos I've watched. Lol

[@arbinnunez109]

Thank you sir your videos are amazing as usual

[@stairbuilding]

I never get tired of hearing kind words like those and am extremely happy that you like our videos. Keep learning.

[@AngyesonBen]

I appreciate your reaching

[@stairbuilding]

I appreciate that

[@FaridulAfrath]

How to calculate required glass pieces for railing In staircase area??

[@wallacemuhammad1704]

Pa code requires 2 x 10 stock material for treads. However, a 2 x 10 is really 2 x 9.75. Does it qualify as "stock material"?

[@stairbuilding]

I would ask the building code authorities for clarification.

[@oddsandwindsocks5905]

Was hoping that you were going to show the workings out for treads and risers

[@stairbuilding]

Try our website in the basic stair building section.

[@toonybrain]

Really helpful visuals. Thank you.

[@stairbuilding]

You're very welcome!

[@kamalzahab5062]

Please more videos like this Easy to understand thank u

[@stairbuilding]

Thank you, I will

[@SmileyFaceGeorge]

Thanks for the video! There’s a potential issue with your calculations though. Let me explain: The flaw in calculating your length would be that if the lower level was the edge of a landing vs a flat floor like in your drawing, buying a board that is just over that diagonal distance still wouldn’t be long enough. Let me elaborate... Let’s say that the diagonal distance was actually closer to 8’ than the number you used in your example… let’s call it, 95”. In a situation where the lower level is the edge of a landing (not as floor), there wouldn’t be enough lumber left on the lower end of the board to allow for the vertical portion of the stringer that is required to attach the stringer to the edge of the landing. The correct length board would then be the following size up, which is 10’. Therefor, the example you’ve used above, although accurate for a flat floor in your drawing, wouldn’t work in all cases. Just something that might be a good idea to point out before someone goes and buys/ cuts the lumber to discover it’s too short. Thanks again!

[@stairbuilding]

You're welcome and you're right, if the stair stringer is different from the one in the video, then you might need to get longer or shorter boards.

[@josephauld6565]

How do you know the measurement out. We know how high for our risers.

[@stairbuilding]

It's not as easy for me to explain, but I do have plenty of videos on the website. www.homebuildingandrepairs.com/design/stairs/index.html

[@eventsnthings8536]

For 10' (height) staircase 2x12x12 * 2 boards are required a^2 + b^2 = c^2 a(riser) 120''+ b(run) 94" = c (total length of the board) 123" = 2x12x12 board

[@FOUAD60SANTOS]

I've 92.52 inches in height with a 7.1/4 rises and 10 inch runs I will get 13 stairs ! Wright? So how long of the lenght of the wood to buy? Is not dependents of how far I wanted the stairs to be ? Or this is the minimum standard.? Coz I calculation turn up too long stringer for this , about 3m long.

[@nicolewebb558]

How did you figure out how far to measure

[@stairbuilding]

You will need to figure out how many steps and risers to get the total rise (plumb measurement) and level measurement first.

[@nicolewebb558]

@@stairbuilding they way they built this deck and steps they got 5 and they attached it flush with the deck but it looks like they put it alittle lower so the decking they use would be flush with the deck

[@rafauka897]

Great video! Thank you for sharing your knowledge

[@stairbuilding]

Glad it was helpful!

[@laica12345]

How can I calculate the height of the timber for the stairs?

[@stairbuilding]

I usually use 2 x12 or 2 x14 lumber.

[@billynolanjr2266]

Stair building , once its grasped is really very easy but I See so many carpenters terrified of them , last thing you want is a wood pile ! Anyway great video!

[@stairbuilding]

Yes, I remember the days of the scrap wood pile and my education.

[@billynolanjr2266]

@@stairbuilding we have all been there and still occasionally make mistakes , everyone does . Always have to double and tripple check math and measurments when doing stairs

[@JonathanPerez-eo3hn]

@@stairbuilding I'm about to do the stairs in my house and I'm scared 😆 can you help me out

[@lhenry1693]

A carpenter scared of building stairs is so common in the trade because many of the people working as carpenters are not apprenticed carpenters….they’re a bunch of wannabe carpenters…lol

[@sorin990]

This is helpfull, its handy to have a book about the subject to know how to do it,even if you are a starter proffesional, but if i wanna make a stair,once in a lifetime for my chickens (and i want to look fancy) then imma gonna watch some youtube videos ! Thanks for the info share man ! :D u the man !

[@stairbuilding]

Yes, go find your video and those chickens sound like they have it made.

[@sorin990]

@@stairbuilding sure willl do, no need to be rude about it :-/ ....

[@RA-yk3nv]

Thank you very very very much, i search a lot but this video was the clearest and easiest.

[@RA-yk3nv]

The only think that is not yet clear to me is the handerail

[@stairbuilding]

Glad it helped

[@stairbuilding]

The length of the handrail usually be a little longer than the length of the stringer, but if you needed to know the exact length, then you could use the same formula to figure out the length of handrail.

[@lorenzogonzalez7969]

Thanks so much Just one question,,what about if the floor at then is different (lower )

[@stairbuilding]

If you can't use this method, email me a picture or provide more details about your project and I will see if I can help.

[@wallacemuhammad1704]

My total rise is 88 inches. Stringer length is 144 1/16. Can I cut the stringer out of a2 x 12 x 12 board?

[@stairbuilding]

I done it plenty of times, but you might need to check with your local building department for your project.

[@louisgholland709]

Front exterior doorway how one know how far to measure out from door to walkway. Is based on how many riser's one calculate.

[@blackpepperdiy]

Can you please model a wrap around stair system on three sides of a deck.

[@jackvillan5151]

I’m confused. If you’re building a set of stairs your height is obvious. But In this diagram your stairs are 77” long. Well that’s an arbitrary number that we wouldn’t have before starting a new set of stairs. Unless you’re just rebuilding. So how do we find our length???

[@stairbuilding]

First you calculate how many risers, then you can figure out how many steps. If this doesn't make sense, go to the website where I have more videos about this.

[@josetores6663]

Thanks!

[@stairbuilding]

Welcome!

[@mtatman22]

Thank you so much

[@stairbuilding]

You're very welcome.

[@Japone81]

Even if you have the time you should still get the book nothing beats references when building no matter what

[@davidgiesfeldt6650]

There is a square function on the calculator and a M+ to store the numbers when calculating…

[@camman61]

thank you !!!!

[@stairbuilding]

You're welcome!

[@jackdriskelljr4143]

If your not starting your measurement from the total rise. That's confusing. Are you reverse engineering?

[@stairbuilding]

I would try to start with the total rise.

[@roberthibbs9988]

I don't understand how he got the 77"

[@islamshahidul6161]

Tnx sir

[@stairbuilding]

Welcome

[@Keepitreal260]

Legendary

[@leothelion2001]

You never mentioned the risers and the runners 😑

[@stairbuilding]

This video is all about the stringer. kzbin.info/www/bejne/hoXSeqanq5trbck

[@lilrex2015]

NGL, this video did not need to be 7 minutes. This could have easily been condensed into 2 min

[@stairbuilding]

That would work for some people, but not everyone.

[@robertluisb.9287]

Nope. I'm still confused.

[@rjefcosife9577]

I will not empress our explanation,,can't understand

[@stairbuilding]

What are you having problems with?

[@know1knowsu210]

I'm lost

[@stairbuilding]

How can I help?

[@TammyMartinBLUE]

🤣 measure to here?

[@robertluisb.9287]

I'm serious

[@stairbuilding]

Me to.