How to calculate an arch radius!

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  • Опубліковано 22 жов 2024

КОМЕНТАРІ • 290

  • @giantgrowth4204
    @giantgrowth4204 Рік тому +126

    Yes sir I used to build arches on porches , screened in porches. We used a string. Tied to a pencil. Same formula. An older Mexican man named Lupe ramirez taught me that when I was 18 years old. He showed me many things in construction. Thank you

    • @chrisreynolds2410
      @chrisreynolds2410 Рік тому +8

      Put some respek on his last name and use a capital letter…..is that what you taught you to be lazy and not care about details?

    • @jordanharvey2163
      @jordanharvey2163 Рік тому +12

      ​@@chrisreynolds2410 you can't insult someone if you can't even compose a 1st grader level sentence correctly. Lol.

    • @chrisreynolds2410
      @chrisreynolds2410 Рік тому

      Ahhhh funny thing is I gotta 6th grade education and own 2 businesses that make a ton of $ and have 4 cars and a house and maaaaaaad $.
      So itz kool spellings and komposin proper sentences has done nothing for your life.

    • @jordanharvey2163
      @jordanharvey2163 Рік тому

      @@chrisreynolds2410 ignorance is common in your genealogy. See you assume I have nothing, but you're so far beyond incorrect. I'm 29. A combat veteran, i own 4 apartment complexes 30 units each , 1500$ a month per unit 12 month lease each , plus I own my house , 5 semis , a drywall and painting business and I have absolutely zero debt. I have more money in my wallet than you do in your entire life savings. I own all diesel trucks , my semis are 150k a piece and my trucks are 100k , all 22-23 , I also own my apartment complexes outright. Utilities included they still bring in a fortune every month. I also grew up in foster care and had nothing given to me. So try again. You failed miserably.

    • @giantgrowth4204
      @giantgrowth4204 Рік тому +3

      @Chris Reynolds Rameriz.
      Sorry my voice to text is not to your liking chris

  • @NinjaofApathy
    @NinjaofApathy 11 місяців тому +14

    How you displayed the calculator and explained this was excellent, subscribed! Thanks

  • @alexanderannunziata9479
    @alexanderannunziata9479 Рік тому +76

    And this is where my math left the room.

    • @FunkMonk-zy5jq
      @FunkMonk-zy5jq 9 місяців тому +1

      The calculator is a construction calculator - it does all the working

  • @Happy-ze4bm
    @Happy-ze4bm Рік тому +9

    Please make more video like this. Like how to calculate the ridge? Etc. great work!!!

  • @danielldecamp7516
    @danielldecamp7516 11 місяців тому +1

    Very nice! 👏

  • @Gallo903
    @Gallo903 9 місяців тому +2

    Thank you 🙏

  • @michaela6073
    @michaela6073 Рік тому +93

    The calculator solved for R = H/2 + (W^2)/8H in case anyone was wondering.
    Where:
    H = 26.5”
    W = 105.5”

    • @metalrott324
      @metalrott324 Рік тому +11

      nope. nobody was wondering.

    • @kenjanowiak4162
      @kenjanowiak4162 Рік тому +4

      You gotta know the math !

    • @chrisreynolds2410
      @chrisreynolds2410 Рік тому +3

      You really don’t need to know the math or much math…..I’m super impressed w this kid though and proud to see him care and be so knowledgeable as a carpenter.

    • @kenjanowiak4162
      @kenjanowiak4162 Рік тому +2

      There are times when laying out a large radius , obstructions are in the way, and you do need to know the math to plot out on the x,y axis .

    • @chrisreynolds2410
      @chrisreynolds2410 Рік тому +4

      I could give you the same arch with something long and flexible and 2 nails and my center mark…….let’s not get crazy here

  • @pb7133
    @pb7133 Рік тому +1

    Well done.

  • @jasonlawrence6209
    @jasonlawrence6209 Рік тому +1

    I like these little videos teaching people new things they may have not known. Thanks.

  • @Momoney1G
    @Momoney1G 9 місяців тому +1

    Great content 🎉

  • @JohnKirk
    @JohnKirk Рік тому +5

    I know three ways to do that and none of them use math, so I'm kinda glad for the guy who gave the formula above.

  • @jasonperez0
    @jasonperez0 Рік тому +21

    And just like that I learned something. Awesome. Tips have been great from your recent posts

  • @daveinmontana7726
    @daveinmontana7726 Рік тому +4

    AWESOME for a youngster !!!! You have a future my man !!!!

  • @BamaRushandLilMan
    @BamaRushandLilMan 10 місяців тому +1

    Glad to see the fireplace is installed. We often have to wait.

  • @refri17ner95
    @refri17ner95 9 місяців тому +2

    Good shit bro. Sparky here. I enjoy your videos.

  • @Dadlife2018
    @Dadlife2018 11 місяців тому +2

    I was taught with a string and pencil looks like this is a good way as well subscribe love watching new tricks

  • @paulgeorge2099
    @paulgeorge2099 8 місяців тому +2

    Thank you excellent job showing the calculator. That gets a sub

  • @victorduran3910
    @victorduran3910 8 місяців тому +1

    Pretty cool!

  • @Miqnayahu
    @Miqnayahu Рік тому +5

    we always use two tapes....one on corner one at m8ddle rise....match numbers.....thats your point

  • @Titantitan001
    @Titantitan001 Рік тому +3

    I did a lobby once where it was 4 radius’ meeting and like swirling together between 4 different tiles and the prints were totally unclear and I had to basically make it from scratch. That app was a game changer that day. Otherwise I dont find myself using it much in the tile world.

  • @SaerTurner
    @SaerTurner Рік тому +3

    I do arches with out math really thee is a simple way to do it with out a calculator or math And I build solid one pour Concreted staircases with concaved edges with out a calculator .... but a good video for the people that need to use Calculators and can not function with out Tech

  • @MattMc365
    @MattMc365 10 місяців тому +1

    I haven’t layed out any arches in a minute. We were doing radial arches on this one health first building , all suspended. That was a fun one . Metal studs of course .

  • @lastofthe4horsemen279
    @lastofthe4horsemen279 9 місяців тому +1

    Yeah lve done this on giant buildings with my chalk line and a marker and my huge brain. That being said its is great to have a construction master calculator.l took a course on its use when l got my Jouneymans card .They make life easy.

  • @WhowereEpsteinsclients
    @WhowereEpsteinsclients Рік тому +4

    Love it when a plan comes together. Nice simple understandable instruction. I have no hate to give here.

  • @frankiec5500
    @frankiec5500 Рік тому +2

    I love my Construction master.. it makes all of my tasks mindless..

  • @danielcampbell1357
    @danielcampbell1357 10 місяців тому +1

    Or you can square off center of your arch snap a line from bottom of arch to top of arch measure center pull a string line where it intersects with the center that’s your pivot point

  • @brett6007
    @brett6007 9 місяців тому +1

    Makes sense, I like it.. I use the same app so cool stiff
    Thx

  • @brianreyes2619
    @brianreyes2619 6 місяців тому +1

    Damn bro this helped me on a job that I had to make a arch form out of nowhere for the first time and I followed your steps and I killed ir

  • @Alesandro113
    @Alesandro113 Рік тому +1

    Nice done! Thank for math and Google!

  • @michaelosmon
    @michaelosmon 9 місяців тому +1

    Mark center, mark your rise and run, draw a line between the center rise and 1 of the run marks. Find center and draw a square line off that, where that line intersects the center line is the pivot point. I have a video explaining

    • @shannonmaloney3626
      @shannonmaloney3626 8 місяців тому +2

      that's how I always do it

    • @michaelosmon
      @michaelosmon 8 місяців тому

      @@shannonmaloney3626 it is very simple and effective

  • @Chicagoneno7414
    @Chicagoneno7414 Рік тому +1

    Some wholesome well needed math. That felt good frfr!

  • @MattMc365
    @MattMc365 10 місяців тому +2

    Get your center and a corner pull 2 tapes when the numbers match that’s your point , swing it .

  • @Heb101922
    @Heb101922 Рік тому +2

    Wow! Mad skills.

  • @ccwccw1
    @ccwccw1 Рік тому +33

    So mark that down kids the way you calculate an arch is to punch it in to your calculator
    😂

    • @DevinM420
      @DevinM420 Рік тому +1

      everyone has one on them aka phone

    • @22KingRancher
      @22KingRancher Рік тому +3

      @@DevinM420 you dont have a construction master on your phone

    • @DevinM420
      @DevinM420 Рік тому +1

      @CWC no I don't.. I was going to download it but they want me to pay monthly

    • @RamenShamen
      @RamenShamen Рік тому +2

      ​@@DevinM420 its $20 for your lifetime... I am on my 4th phone.

    • @TheOneAndOnly1776
      @TheOneAndOnly1776 Рік тому +2

      What do you expect him to write out some long equation and solve it on paper? Time is money and the calculator is always faster.

  • @alltaske1
    @alltaske1 Рік тому +2

    Damn that was fast and he was explaining it!!

  • @JC-un4bg
    @JC-un4bg 3 місяці тому

    Answer of height of the Arch squared +half the width squared. Divided by twice the height of the arch . Basically the hypotenuse squared divided by twice the height of the Arch.

  • @vinjane3526
    @vinjane3526 Рік тому +2

    Nice!! I have same calculator app! Works great

  • @angelam6902
    @angelam6902 9 місяців тому +1

    "I'd like to show you how to calculate an arch. But I don't know how so I just enter numbers in this gizmo which calculates it for me."

  • @acurarl9929
    @acurarl9929 Рік тому +3

    How does that wrk when your run is over 8 ft 9-1/2 inch but the ply wood is only 8ft?? Pls explain. Or Did you start with wider ply wood and cut it to 8ft -9-1/2 inch then you pulled off ea corner of plywood to get nail point for arch ? That all makes sense in my head as long as the plywood I see there isn’t just 8ft it had to be 8 ft 9-1/2 inch right???? Wish I was smarter but that’s why I’m commenting to hopefully add some knowledge to the bank!

    • @tonyfortune346
      @tonyfortune346 9 місяців тому +1

      It's two pieces. It's 8' 9 1/2

  • @michaellatour9852
    @michaellatour9852 Рік тому +1

    Awesome video!

  • @StonyDanza2js
    @StonyDanza2js Рік тому +3

    You can do it without a calculator chalk a center line measure up your height on centerline set a nail and pull a tape measure down centerline then set a nail at start of radius pull a tape to centerline where both tapes read the same measurement that is your focal point incase your batteries die good vid tho bro

  • @mandoc7102
    @mandoc7102 Рік тому +1

    I have three ways of doing it. Try it
    Rise x rise
    Plus
    Run x run
    Divided by twice the rise
    There it is every time
    Easy no calculator required

  • @johnbagewll2321
    @johnbagewll2321 Рік тому +1

    Picture it vertical and it looks more elliptical. I never used a calculator for that cause I wasn’t sure how. Pretty cool.

  • @bigworm6609
    @bigworm6609 Рік тому +2

    Awesome job and explaining how to do arches

  • @aztekwarrior518
    @aztekwarrior518 Рік тому +2

    That's oriented strand board, not plywood..
    And that subfloor looks like it got very wet before the roof was on

  • @izzyc.4746
    @izzyc.4746 10 місяців тому +1

    You make the best videos out there very informative

  • @klausthedog9670
    @klausthedog9670 8 місяців тому +1

    Never seen it done this way

  • @brett6007
    @brett6007 9 місяців тому +2

    So was that not an 8ft run mark out? Or was the sheet 8’-91/2” I like the method just little confused on that part.
    Thanks.

  • @zanesmith1638
    @zanesmith1638 9 місяців тому +1

    Is that piece of plywood 8’-9 1/2” long? That was the run, so I assume you had 10’ sheets that you cut down to fit the run? (I’m assuming hallway?)

  • @xalconx1
    @xalconx1 Рік тому

    Very nice

  • @Joe_JesusWins_Lewis
    @Joe_JesusWins_Lewis 9 місяців тому +1

    We just put the plywood up and cut the excess off. 😂 😅

  • @cocomix1987
    @cocomix1987 Рік тому +1

    Thank you and please keep going!

  • @polocisneros
    @polocisneros Рік тому +2

    I see how you figure width but how did you figure hight with the arch way up there?

  • @stairman3151
    @stairman3151 9 місяців тому

    You make that more difficult than it should be

  • @alanmcdermott4290
    @alanmcdermott4290 Рік тому +17

    But your run is only 8', width of the plywood, not 8' 9 1/2"

    • @terencemerritt
      @terencemerritt Рік тому +7

      That’s a piece of tall wall OSB, look before commenting lol

    • @bigshot9557
      @bigshot9557 Рік тому +2

      Lol that’s what I’m talking about people don’t think before speaking

    • @jamesmatheny6395
      @jamesmatheny6395 Рік тому

      That's what I was thinking to..

    • @CarlosSanchez-bg4wf
      @CarlosSanchez-bg4wf Рік тому

      I caught that bruh. Yup something don't sound right 😕 😮

    • @rufusaurus7
      @rufusaurus7 Рік тому +6

      yeah i was wondering where he was getting 9.5 from cause i thought that was an 8ft ply. i’m a sheetrocker not a framer so not too familiar with plywoods

  • @jerryfvair5211
    @jerryfvair5211 Рік тому +3

    Was think about greenhouse hoops

  • @mantoniom55
    @mantoniom55 Рік тому +3

    Damn Just Bieber building houses now ! ? 😳

  • @ryanohara7757
    @ryanohara7757 10 місяців тому +1

    I learned to do these without a dam calculator

  • @asbestosfibers1325
    @asbestosfibers1325 9 місяців тому +1

    Ive been eating taco bell all day trying to get some runs

  • @Apexjasonmorganllc
    @Apexjasonmorganllc Рік тому +3

    Said 8-9 1/2 marks an 8ft sheet of plywood

  • @matdamon471
    @matdamon471 9 місяців тому

    Yeah buddy….well done.

  • @leenelson8524
    @leenelson8524 Рік тому +2

    No no your a great wood worker you just can't screw 🥊

  • @vrea77
    @vrea77 Рік тому +1

    Oh yeah thanks dude

  • @TheFoxygrandpa69
    @TheFoxygrandpa69 Рік тому +1

    I'm just curious on how the osb was placed so perfectly

  • @Dbears
    @Dbears 7 місяців тому +1

    I totally would have nailed that peice up and used a flush trim router on the over hang 😅

    • @Coffmanconstruction
      @Coffmanconstruction  7 місяців тому

      This doesn’t nail against anything to reference, it’s a freestanding arch so the radius didn’t exist until I cut it

  • @johnjohn-kx3xp
    @johnjohn-kx3xp Рік тому +2

    That bag looks way too heavy to the left , it could pull you over in high winds try to reduce its weight or certainly don't add to it

  • @F4ttym4n
    @F4ttym4n Рік тому

    Wrong. First thing you need is a devistating mustache like this dude. Respect

  • @coachiti2009
    @coachiti2009 10 місяців тому

    Surprised they’re not using Advantech on a house with that view.

  • @negemyshibalbeckbojiya4875
    @negemyshibalbeckbojiya4875 Рік тому +3

    Just nail it and cut it out. Geesh. Could've done installed and cut out 3 sheets by the time you lay one out.

  • @declanwallace6770
    @declanwallace6770 9 місяців тому

    how do you find the focal points of an elliptical arch?

  • @joshuadraper1534
    @joshuadraper1534 Рік тому +5

    We just throw it up there and cut it with a router

  • @freakyframer
    @freakyframer Рік тому +1

    Holy shit how long is your hammer handle 😅

  • @EhsOfBass
    @EhsOfBass Рік тому +2

    So is this what Justin Bieber does nowadays?

  • @ramsantos4506
    @ramsantos4506 Рік тому

    Thank you

  • @batmansdad3195
    @batmansdad3195 Рік тому +3

    Now do it as an oval

    • @Coffmanconstruction
      @Coffmanconstruction  Рік тому +1

      I actually did an ellipse for the first time on this same house, using two focal points and a string

    • @batmansdad3195
      @batmansdad3195 Рік тому +1

      @@Coffmanconstruction anything on a house that's not square is a pita to tackle, but once it's complete it's all bragging rights

  • @Ty_B_Productions
    @Ty_B_Productions Рік тому

    What is that app?

  • @darengibney7357
    @darengibney7357 Рік тому +1

    I'm confused. You said the run was 8 ' 91/2" but you pulled your tape measure from the corners of an 8' sheet to get your focal point instead of 8' 9 1/2"?

  • @lenzsanchez2484
    @lenzsanchez2484 Рік тому

    I have a different way to do it…… I’m a self learner I’ve seen people doing this… but I don’t like to ask people…… so here it is thanks man……… We framers here in Chattanooga Tennessee rarely do arches……

  • @jimhaggerty7850
    @jimhaggerty7850 7 місяців тому

    If it's 8'9 1/2" your mark is between 8' where did the 9 1/2" go?

  • @joelethalcruz4417
    @joelethalcruz4417 10 місяців тому

    Boom just like that

  • @bobbygetsbanned6049
    @bobbygetsbanned6049 Рік тому +5

    Commodity OSB subfloors but gotta have them arched doorways yo.

  • @williamleduc2854
    @williamleduc2854 Рік тому +3

    And who said you will never use Geometry.

  • @hankimus10
    @hankimus10 Рік тому +4

    I’m not a carpenter, but can appreciate “all” the math involved! I feel like all kids should be taught this is highschool!

    • @skinlab4239
      @skinlab4239 Рік тому +1

      Kids walk around with cell phones which have calculators so they are taught this .

    • @FactsRawTruth
      @FactsRawTruth Рік тому

      I'm not even a carpenter but that's not even plywood. He can't even tell the difference between OSB and plywood

  • @zachariah1991
    @zachariah1991 Рік тому +1

    What app is that?

  • @richardshort4587
    @richardshort4587 Рік тому

    How come your run was 8’-9 1/2”and you mark the arch on an 8 foot board. Somethings off here.

  • @davidlee3203
    @davidlee3203 11 місяців тому

    That's kool

  • @koreycomstock3340
    @koreycomstock3340 18 днів тому

    What calculator app is that

  • @trickyricky12147
    @trickyricky12147 7 місяців тому

    Question: Have you ever had the old heads looking down on you for using a calculator in the construction field? I dont think it really matters that much because time is money and you dont have to write a big arse equation and solve it on paper. I could be wrong, but as long as you know how to frame walls and layout studs the right way it doesn't matter. Basically, the right way should be the right way, no matter how its tackled. More than one way to kill two birds with one stone is what I say.

  • @makmar4484
    @makmar4484 Рік тому

    Nice

  • @fathercadi
    @fathercadi Рік тому +4

    But I'll never need Algebra in real life... said all high school students.

    • @kamikrazywarboy2008
      @kamikrazywarboy2008 Рік тому +1

      I didn't learn it until I needed it .. wasn't half as complicated as the teacher made it out to be.

    • @br6145
      @br6145 Рік тому +2

      Do well in school so you don't have to be a construction worker! Ironic

    • @fathercadi
      @fathercadi Рік тому +2

      @@br6145 my wife is a college graduate, and is a professional adjudication specialist. Construction workers still make more money, and shes 40 still paying off student debt.

    • @br6145
      @br6145 Рік тому +5

      @Caddy Dad I love it!! I was always given a negative impression of construction growing up. I loved working with my hands and being outside though. Went to nursing school out of high school but eventually abandoned that and have been building houses for the past 12 years. Get to make our own hours and my office is in beautiful locations, always changing.

    • @fathercadi
      @fathercadi Рік тому +4

      @@br6145 I was a professional university chef and even cooked for more celebrities than I could count. I've been working construction for 4 years now and I feel like I wasted my first 20 years. Like office space.

  • @SaveTheYouth613Canada
    @SaveTheYouth613Canada 9 місяців тому

    In 25 years ive never seen anyone use a calculator....good things you guys have apps for all the things you cant do....

  • @Buckeye4life7
    @Buckeye4life7 9 місяців тому

    Autocad has entered the chat

  • @bugtusslealien3931
    @bugtusslealien3931 Рік тому +1

    You punched the numbers into a construction calculator and that's how you calculate the radius for an arch. OK! Oh dear!

  • @thomashunter3336
    @thomashunter3336 7 місяців тому

    Safety glasses required

  • @jasonperez0
    @jasonperez0 Рік тому +3

    What happens to the 8’9 1/2” ?

    • @Coffmanconstruction
      @Coffmanconstruction  Рік тому +2

      That is the width of the opening you want the arch to go into, and the 26-1/2 is the height of the top of the arch

    • @jasonperez0
      @jasonperez0 Рік тому +2

      So did you just cut a sheet of plywood wood at 9 1/2” and lay it next to the other sheet?

    • @Coffmanconstruction
      @Coffmanconstruction  Рік тому +2

      @@jasonperez0 exactly! And I stitched them together with a block

  • @jermzdee
    @jermzdee Рік тому

    Skills

  • @vincevince7482
    @vincevince7482 Рік тому

    Me:
    Nail board in place and cut with a recip saw

  • @JamesSmith-jx4hs
    @JamesSmith-jx4hs Рік тому +1

    Here's how we calculate (proceeds to have a calculator calculate)

    • @terencemerritt
      @terencemerritt Рік тому

      Hence why he said calculate. You think?

    • @JamesSmith-jx4hs
      @JamesSmith-jx4hs Рік тому

      He could've assumed that a large number of carpenters carry a scientific calculator around with them. He'd be wrong, and I rest my case.

  • @mikealramirez6088
    @mikealramirez6088 Рік тому +4

    8' 9" 1/2 ? I'm confused that's an 8' sheet of plywood

    • @Coffmanconstruction
      @Coffmanconstruction  Рік тому

      Is it? It’s not

    • @mikealramirez6088
      @mikealramirez6088 Рік тому

      Idk that's why I'm confused 🤣🤔

    • @smuhhhh
      @smuhhhh Рік тому

      Yeah that part needs some 'splainin before my brain can get on board

    • @dscrib6205
      @dscrib6205 Рік тому

      He added 9-1/2” to the end of the sheet…look at the layout paint lines

    • @davidmcmillen4067
      @davidmcmillen4067 Рік тому

      9 ft sheet of plywood

  • @arrowcarpentercontractor6127
    @arrowcarpentercontractor6127 10 місяців тому

    Thats a nice 8'9 1/2" sheet of osb there.