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

[Japone]

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

[CaptK-pyrq]

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.

[aprilhumen]

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

[arthilliker]

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 !!

[theillestKP]

You did a terrific job explaining this subject!

[chairfarmer]

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!

[arbinnunez]

Thank you sir your videos are amazing as usual

[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 :)

[marcellino]

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

[kamalzahab]

Please more videos like this
Easy to understand thank u

[rafauka]

Great video! Thank you for sharing your knowledge

[sorin]

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 !

[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!

[RA-yknv]

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

[robertchoutka]

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 🙂

[racquelthomas]

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.

[eventsnthings]

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

[oddsandwindsocks]

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

[jackvillan]

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???

[FOUADSANTOS]

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.