How To Repair a Bowed Floor Joist

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  • Опубликовано: 21 дек 2024

Комментарии • 52

  • @thistledowntreasures7990
    @thistledowntreasures7990 3 года назад +10

    Thanks for the helpful information. Never occurred to me to plane down floor joist, I was planning on using floor leveler to try to straighten up flooring. Going to have to refigure my project this may be the better option.

    • @randomrebuilds
      @randomrebuilds  3 года назад +5

      Don't think I would trust floor leveler all over the place buried under hardwoods. Last thing you want is that stuff crumbling apart for whatever reason and hearing crunching sounds whenever you walk in that area.

    • @thistledowntreasures7990
      @thistledowntreasures7990 3 года назад

      @@randomrebuilds Good point. Always Wondered if floor leveler would crumble after a while.

  • @WorkingNomad368
    @WorkingNomad368 10 месяцев назад

    This video was extremely helpful since I had a similar issue with the floor

  • @marksmith9295
    @marksmith9295 3 года назад +2

    Very helpful video. Thanks for taking time to post. I will have to do same as have a hump running the entire width of second level of older house i moved into. Wanted to replace cheap laminate flooring anyway and have a planer. The hump is directly over wall partition and hallway on main floor.

  • @rebeccagflores4026
    @rebeccagflores4026 3 года назад +3

    Thanks SO much for the useful information. Especially how to determine how much you need to plane off. Just what I needed. Thanks a million!

  • @Geotrist
    @Geotrist 2 года назад +1

    This is exactly what I needed to see. Thanks!

  • @MerchantNation
    @MerchantNation 2 года назад +7

    Engineers might not like it without a proper structural sister, but the joist should be fine with this little bit of material removed; assuming there is no external root cause. However, just from appearances and details given, I would think this is a symptom of another issue
    Since this is a second story, my assumption is that this joist lines up with support studs below(assuming that all other reference points on same floor walls are where they should be.) If true, then there is upward pressure from below resulting in slow, steady pressure that is warping the joist in that isolated section only.
    I could be wrong, but it seems like an odd way for a natural pucker to occur from humidity alone. That would be more even across the span of the joist. If I'm correct, then this fix is likely to repeat and hasten as the underlying cause worsens. It could also last for many years, so understanding the cause before making repairs is key. Then you can choose the best course of action.

    • @caseyblount3889
      @caseyblount3889 9 месяцев назад

      Thank you for this info. What could cause this problem?

  • @huypham1664
    @huypham1664 10 месяцев назад

    Thank you so much, you did a great job, this is very helpful to me!!!

  • @GoldSword777
    @GoldSword777 5 месяцев назад

    I have the same issues in my house. Thanks for that information!!

  • @terryh9382
    @terryh9382 2 года назад +2

    Fantastic job. I have this problem that runs the length of a room over a support wall in the basement that moves seasonally with humidity. I’m not sure whether to try and repair it or just live with it. If I correct the hump when it is at its worst in the winter, come summer it may create a problem on the wood floor when it lays back down. Any comments on this?

  • @danswaney4134
    @danswaney4134 2 года назад +2

    How do you determine whether to use a floor jack to level a sagging joist vs planing it?

  • @mrharlemike28
    @mrharlemike28 Год назад

    Great video! Thank you for the excellent detail. I am laying down vinyl flooring over tile, but there's a hump in the floor. So I'm guessing its the same issue. Now I know how to tackle this. Sorry that my video like change the beautiful number pattern of 444 to 445. lol
    If you have recomendations on my issue, please do share. This is my first floor installation

  • @DavidWeisz-t2r
    @DavidWeisz-t2r Год назад

    Thanks so much for providing this info!

  • @keyla3793
    @keyla3793 2 года назад

    This is the issue in my second floor master bedroom (it bulges the longer length of the room. I often hear settling sounds which from seeing your video seems to be the pressure on the subfloor from the joist). Thank you so much!! Now I know what services to ask about for the hardwood floor installation.

    • @randomrebuilds
      @randomrebuilds  2 года назад +1

      You will most likely need to get a contractor inside your home to fix this issue before having the flooring folks come out as they usually will not perform such a repair.

    • @8eSix
      @8eSix Год назад

      I've used this method on roofs so that my newly cut sheeting has a backer to screw into. On floors, it's much better to cut the subfloor open to the center of the joists on both sides of the bowed joist. This allows for adequate support of the subfloor patch. Otherwise you'll no doubt experience flexion. If you can't cut to the next joist because of a wall, add some blocking in between under the wall. In the video method, Lvp over the top will slightly minimize flexion (depending on the orientation of the flooring), but time will tell with added weight and traffic.

  • @lindaedwards409
    @lindaedwards409 3 года назад +1

    Fantastic job. Do you know anyone like yourself here in Atlanta Ga who does the same work you do?

  • @huejanus5505
    @huejanus5505 2 года назад +1

    Two questions: Why didn’t you cut the subfloor centered on the 2 adjacent joists, wouldn’t that make for a stronger patch? Why didn’t you use subfloor adhesive when reinstalling the plywood?
    But great job levelling the floor.

    • @randomrebuilds
      @randomrebuilds  2 года назад +2

      Cutting the subfloor centered on the adjacent stud isn't a good idea as the saw takes away 1/8" of material already sitting on a narrow 1.5" space. Placing the 2x4" cleats attached to the underside works great, and with wood flooring on top - the strength will be in tact. I used wood screws which secured the subfloor much better than nails and no need for adhesive.

  • @deanhowell6730
    @deanhowell6730 2 года назад +2

    They have lasers and that may be better than that 24" level.

  • @trailsloth6956
    @trailsloth6956 2 года назад

    How hard is this to do with pine plank subfloor?

  • @Gotvideo2
    @Gotvideo2 3 года назад +4

    Thank you very much

  • @kent6619
    @kent6619 3 года назад +1

    Thanks very much for this video. I missed how you knew how much to plane off? Did you keep the outer ends of your ‘guide 2x4’ flush with the joist and just shave down the middle? Or were you using a measurement you got from rocking your level? I guess what I’m asking in a different way is how did you know where to place your “guide 2x4?” Thanks!

    • @randomrebuilds
      @randomrebuilds  3 года назад +2

      I basically just braced a level across the opening once the floor was cut open. I then measured down 9/16" from the bottom of level onto the joist and made marks. Also another technique i learned is take a small scrap piece of subfloor, hold it on the bottom of the level and score the joist with a pencil. That will give you a precise marking of where to scab on the temporary 2x4 and then you can start planing it down.

    • @kent6619
      @kent6619 3 года назад +1

      ​@@randomrebuilds Ok, got it, thank for the quick response!

  • @gsusfan1
    @gsusfan1 Год назад

    Flexing too much - I just performed the same repair before replacing floors with LVP. However, the floor is now flexing at the edges of the new subfloor, where it attaches to the studs that were used to join old and new floor. I imagine some of the issue is your subfloor in the video is real plywood and mine is OSB. OSB is much more flimsy and cheap. Its like it is pivoting in the middle, on the joist I planed down (yes, it is low enough now). I will probably need to remove a wider section of subfloor, back to the next joist. I thought I would add a sister joist or stud to the outer joists in order to have a place to secure the new subfloor in a much stronger way. I prefer to not have the subfloor edges sharing half of the width of each outer joist. Do I need a full size sister joist (2 x 10) or will a stud be enough since I am only screwing subfloor to it?

  • @familylifescienceeducation5227
    @familylifescienceeducation5227 2 года назад

    Great work!

  • @larryaugsburger8452
    @larryaugsburger8452 2 года назад

    I've got a large section with 2 joists that need to be planed, about 8' long. Do you see any problems with using this method on something so large?

    • @larryaugsburger8452
      @larryaugsburger8452 2 года назад

      Was also thinking I might cut the replacement subfloor first, then use it to trace the cut lines on the floor so it's a good fit...

    • @randomrebuilds
      @randomrebuilds  2 года назад

      I'm not a structural engineer. My opinion is if you aren't shaving off too much off the top, there should be no worry - again just my opinion. You may want to consult with a structural engineer.

    • @larryaugsburger8452
      @larryaugsburger8452 2 года назад

      @@randomrebuilds thanks for your reply. I can always sister the joists. I was more concerned with this method of patching in the subfloor with 2x4’s and screws. I have 5/8 plywood (built 1974).

  • @sdhillon1781
    @sdhillon1781 3 года назад

    Hi there, can u list out all the tools you used. Also, my joist is over an inch off so it's too much to plane off, any idea what tool I can use to trim odd that hoist

    • @randomrebuilds
      @randomrebuilds  2 года назад

      1" is pretty extreme. Best tool to use would probably be a circular saw with a fence attachment that can be attached to the side for a perfect cut.

  • @rbmgf71
    @rbmgf71 3 года назад

    Any idea what would cause the hump? I'm dealing with something identical in a bilevel where the middle section is humped along the house, running with the floor joist.

    • @randomrebuilds
      @randomrebuilds  3 года назад +1

      What causes the humps can be a number of things from humidity, moisture, condition of joists installed at time of construction, etc. Newer homes with hollow joists aren't as susceptible as older homes which were built with solid materials, but its a small price to pay for longevity.

  • @lenaely6146
    @lenaely6146 3 года назад +1

    What If its bowed down instead of humped up?...
    I was just thinking put a piece of plywood over that small section and keep it moving....
    After watching: maybe add 2x4 next to the bowed joist to level it?

    • @randomrebuilds
      @randomrebuilds  3 года назад

      I would probably put a strip down into that groove and plane it to match the heights of the surround joist on both sides.

  • @jochimbenschneider1915
    @jochimbenschneider1915 Год назад

    I would not want my living area cut out. Go through the crawl spaces up to the joist and cut it then lower and put a sister joist in it for example. This would infuriate a homeowner who has nice tile or carpet.

  • @jonathancowdin3775
    @jonathancowdin3775 Год назад +3

    Lot of things wrong with your assessment bud, you need a bigger level to determine whether it's a low or high spot, this is a common issue and it sure looked like it was the weight of that wall sagging the floor rather than the beam in front being high, which would have been the pop you heard finishing the cut, proper fix would have been filling the low section, you created a smoother slope and didn't fix the problem, other things too but I'm not gonna keep going with this.

  • @dp0813
    @dp0813 2 года назад +1

    Aren't you compromising the structural integrity by shaving away joist?

    • @berttreff7314
      @berttreff7314 2 года назад

      Most the strength is probably replaced with the sister stud, how ever you are right. From what I've been reading an engineer would never recommend doing this

  • @glorialeonard5990
    @glorialeonard5990 3 года назад +1

    +

  • @samramo5491
    @samramo5491 Год назад

    the music too loud

  • @patrickmulholland9332
    @patrickmulholland9332 2 года назад

    One day soon Americans will start to use metric.

  • @fuzzygreysocks
    @fuzzygreysocks Год назад

    God, I hate soundtracks