What is an I-Joist and How are They Made - Did You Know?

Тәжірибелік нұсқаулар және стиль

Prefabricated wood I-joists are structural, load-carrying products used in residential
and light commercial construction. Wood I-joists are straight, lightweight, and
available in long lengths, which allows for easy installation.
I-joists are the ideal choice for designers and builders who want to provide their customers with high quality floor systems. They provide consistent performance for the most demanding residential applications.
Easy to Specify - Performance standardization allows specifiers to select and specify I-joists from various manufacturers using a single set of span tables and engineering
values. Standardization also provides for increased product availability, minimizing the need for costly substitution and re-engineering.
Simple to Install - I-joists save builders time, and therefore money. I-joists are typically pre-cut in two-foot increments of length and shipped to the jobsite ready to install. This minimizes jobsite cutting and material waste. I-joists can be cut and fastened with traditional tools and fasteners - no special tools are required. In addition; Span Ratings for uniformly loaded glued- nailed residential floors for both simple and multiple span applications are clearly stamped on each APA trade- marked I-joist, making them easier
For builders and remodelers to install properly, and more visible for code officials to inspect. Since I-joists can typically be used at greater joist spacings as compared to lumber, fewer pieces must be cut and handled on the job site, malting I-joist installation less costly and less wasteful for the builder.
Allow Design Fledbility - The availability of long lengths allows multiple span installations thus speeding construction by eliminating the need to lap joists over
bearing walls or support beams. This also means fewer pieces to handle. The availability of long lengths and relatively deep joists also gives designers the freedom to create more open spaces and reduces the need for supporting walls, columns, or beams.
Dimensionally Stable - I-joists will not warp, twist, or shrink, and are more uniform in their dimensions than sawn lumber joists. The straightness and uniformity provides a stiffer, more uniform floor with fewer squeaks,,, resulting in higher customer satisfaction.
Lightweight - Because I-joists typically weigh less than half of comparable conventional framing lumber, they can be installed quickly and efficiently. Cut on the job site to permit the passage of electrical wiring, plumbing and duct- work. This cannot always be accomplished with sawn lumber joists and such mechanical systems must be passed under the joist system. Most I-joist manufacturers also provide knockout holes along the length of the joists to facilitate the installation of electrical wiring or light plumbing line with a hammer as needed.
I-Joist Composition
The flange material for I-joists is typically dimension lumber or laminated veneer
lumber (LVL); the web is plywood or OSB. The "I" configuration provides high
bending strength and stiffness characteristics. The web resists shear stresses and the
flanges resist bending stresses.
I-joists are used extensively in residential floor and roof framing. They are ideal for long spans, including continuous spans over intermediate supports. Because I-joists are straight and true, it's easier for builders to avoid crowning and maintain a level framing surface. In addition, wood I-joists are typically stocked and readily available in depths that meet the needs of residential framing.
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Пікірлер: 62

  • @p2rlirax
    @p2rlirax3 жыл бұрын

    Try to find such 2x10 without such a big branch knot or turn it up. And then test again. No-one uses it that huge branch at the bottom.

  • @JumboJimbo100
    @JumboJimbo1003 жыл бұрын

    Thank you for the how its made video. I think these are awesome!

  • @stormbytes
    @stormbytes2 жыл бұрын

    Wow awesome video! Super informative and very well presented. I learned a lot tonight. Thank you!

  • @georgeslade4696
    @georgeslade46962 жыл бұрын

    I wish we could have seen the 2X10 before pressure was applied to it. It looks as though it may have been cracked in that area before the load was applied to it.

  • @BustedLeaf
    @BustedLeaf Жыл бұрын

    I found this to be extremely informative, thank you

  • @fabianorodrigues9979
    @fabianorodrigues9979 Жыл бұрын

    Very explicative, we need more vid like this.

  • @DeanTheDoctor

    @DeanTheDoctor

    Жыл бұрын

    We do indeed Fabiano. 😊🌏✨

  • @DanknDerpyGamer
    @DanknDerpyGamer Жыл бұрын

    All those adhesives in the flange, and in the web material, no wonder this stuff burns so much hotter, and faster than traditional lumber.

  • @jaydee3046
    @jaydee30464 жыл бұрын

    The I-Joist concept is great "on paper", but has a drawback: Supporting hanging loads. I have a garage beneath bedrooms in a 2 story house. I need storage space and wanted to hang things from the garage ceiling. Lucky I looked before starting. Lag bolts through the lower cap and into the webbing could have degraded their strength and nobody would have known.

  • @samkom33

    @samkom33

    3 жыл бұрын

    I feel your pain! hehe. As a traveling certified installer of anchoring points for elevators and cranes i have seen some weird constructions. but we must always think 2x5x safety::: which means that if an anchor point shall hold 1000 pounds, we hang 2500 pounds from the points! so we most times DONT anchor cranes-elevators in wooden anchor points even if the dimensions are big normal lumber, becouse even the best wooden screw-s can be pulled out to easy after some use and wriggling. we usually install say steel beam-s between the beams-joists. that go between 2 load bearing walls.

  • @1959ghostrider

    @1959ghostrider

    3 жыл бұрын

    I have the same I-Joists and I want to hang storage racks. Did you ever do it and or how?

  • @PaulPaid

    @PaulPaid

    2 жыл бұрын

    Attach it the top of the I-Joist not the lower cap or webbing.

  • @jimmygonzalez8185
    @jimmygonzalez81852 жыл бұрын

    I find this kind of stuff fascinating. I wonder if adding a different material in the bottom 2x2 like a long strip of metal would do

  • @FingerJam12
    @FingerJam12 Жыл бұрын

    I would like to see a test again with a couple changes. One with a board without such a massive knot. Also put holes in both for vent , electrical, and plumbing. Lastly, what is the cost difference? Enough to justify a 1.5x strength?

  • @randomrazr

    @randomrazr

    6 ай бұрын

    i wonder if an I joist will hold its strength after 100 years

  • @fredcrayon
    @fredcrayon4 жыл бұрын

    The deflection test is a bit misleading. You would still need squash blocks if transferring a load from, say, a load bearing wall to a support beam.

  • @jimh4167
    @jimh41672 жыл бұрын

    The problem with lumber 2x12s top out at 20 feet span I-Trusses and be built to handle wider spans

  • @usmcguida
    @usmcguida2 жыл бұрын

    I wonder if shaping these with a peak for peaked roofs.... could make these 18ft long to span a small concrete slab for a car port or enclosed garage with a peak already in it and ready to go (obviously theres no overhead storage optio s but still super quick and easy

  • @doczenith5491
    @doczenith5491 Жыл бұрын

    Great info thanks

  • @queenofspadz
    @queenofspadz2 жыл бұрын

    Just wish I knew where to buy 9.5x20' I-Joists here in Athens GA none of the box stores can get them though they do list them on their sites.

  • @HoveyFarms
    @HoveyFarms Жыл бұрын

    Well I'll ask but why can't I make these?? Because of the laminated top and bottom?? 2x3 notched to fit the osb I could make whatever length I want. Interesting video thank you

  • @Koudey
    @Koudey3 жыл бұрын

    “I don’t think we’ll need your marker for this one.” 🤣🤣

  • @publicmail2
    @publicmail24 жыл бұрын

    A flood or leak will damage these because it's OSB.

  • @baronfuller3112

    @baronfuller3112

    4 жыл бұрын

    I believe you can get them in other materials, but you're not wrong.

  • @JumboJimbo100

    @JumboJimbo100

    3 жыл бұрын

    I wouldn't use them in a flood prone area, in fact I wouldn't build in a flood prone area

  • @jgg204

    @jgg204

    3 жыл бұрын

    @@JumboJimbo100 hell you can't even use them below kitchens or bathrooms. imagine a slow leak.....the entire I beam would collapse

  • @britbazza3568
    @britbazza356821 күн бұрын

    The l joist might be stronger than a conventional joist until it gets wet then it will do what all laminated wood does and fall apart where as the solid wood will sustain its strength

  • @mattgrizz1153
    @mattgrizz11532 жыл бұрын

    Didn’t see the board before the crack.

  • @alexmaclean1
    @alexmaclean12 жыл бұрын

    Very interesting. Can these be treated and used as joists on decks?

  • @jackevenson6322

    @jackevenson6322

    2 жыл бұрын

    Yes

  • @shayan_mechanical
    @shayan_mechanical2 жыл бұрын

    How does the price compare?

  • @nazeemslamdien8854
    @nazeemslamdien8854 Жыл бұрын

    I'm from South Africa....this type of joists are not very popular...we use SA pine and laminated beams...I REALLY like this idea very much...I'm wondering what kinda span this particular i-beam can cover...

  • @mitchalvarado2777

    @mitchalvarado2777

    Жыл бұрын

    At that dimension for the joist it can free span 4 to 5 meters (depending on spacing) before deflection becomes a problem.

  • @nazeemslamdien8854

    @nazeemslamdien8854

    Жыл бұрын

    @@mitchalvarado2777 Thank you kind sir

  • @wjcroft72
    @wjcroft72 Жыл бұрын

    What about strength of the joists, under damp or wet conditions? Seems to me then the I-joist would be WEAKER. Obviously all buildings should be kept dry, but changing weather patterns may cause temporary disruptions.

  • @stevenbelue5496

    @stevenbelue5496

    8 ай бұрын

    My limited experience, solid wood holds up better than laminated in wet conditions. If I have a water accident I don't want my house to crash.

  • @shanegonzales
    @shanegonzales Жыл бұрын

    OSB hates WATER. Get that i joist moist for a day and try it again.

  • @Eger118877
    @Eger118877 Жыл бұрын

    Arnold Schwarzenegger called, he wants his haircut back.

  • @Sangoreborn
    @Sangoreborn5 ай бұрын

    I don't like the way they tested the strenght. I'd like to see another test with a smaller gap between the pressure and the resting area of the 2x10 Due to the way the 2x10 splits, you're giving an edge to the i-Joist here. That being said, the i-joist is certainly very strong.

  • @PaulPaid
    @PaulPaid2 жыл бұрын

    Imagine if you made I-joist from 2x10 lumber.

  • @veronicianyveronica5290
    @veronicianyveronica52903 жыл бұрын

    Why you the 2x10 when it’s already broke down and not from beginning. Are you trying to something? I don’t believe it and you also used the imperfect 2x10 with the eyes in the wood

  • @davidpaul689
    @davidpaul6892 жыл бұрын

    What about termite damage

  • @jennifer9528

    @jennifer9528

    Жыл бұрын

    I would imagine the potential for damage is minimal. Termites don't like Douglas fur, which they specifically used for the flange. While they didn't share the makeup of the OSB (it sounds like a proprietary mixture of wood and glue - and termites don't like glue), I'd be willing to bet they took termite threat into consideration for the design of the entire joist. Using Douglas fur for the flanges would otherwise be pointless.

  • @andyvaldez26
    @andyvaldez262 жыл бұрын

    2x10 any day, thise I-joist don'tet you hang anything

  • @vladimirbovcus3855
    @vladimirbovcus38552 жыл бұрын

    In real world plumbers and electricians make many holes in many different places... and sometimes openings. This setup will never handle longtherm loads... If i see this i dont buy a house

  • @Man-u-flex
    @Man-u-flex6 ай бұрын

    Yea sure 50% stronger maybe 50% weaker more likely

  • @rustybeatty6567
    @rustybeatty65672 жыл бұрын

    50% stronger my Oklahoma Sooner buttocks how about 50% weaker a true 5 inch wide by 8 inch tall solid wood beam made of White Oak can run circles around this those manufactured i joists and take more than 3 hours to burn through to be declared unsafe compared to just 4 to 5 minutes with manufactured i joists most manufacturers of manufactured i joists never their products when exposed to fire and i wonder why.

  • @onestepunlock4475

    @onestepunlock4475

    Жыл бұрын

    Who builds house with white oak for framing? It would be ridiculously expensive. They compare softwoods to those joints

  • @jennifer9528

    @jennifer9528

    Жыл бұрын

    Not to mention 5x8!

  • @rustybeatty6567

    @rustybeatty6567

    Жыл бұрын

    @@onestepunlock4475 I would because I'll build my home to last more than a 100 years maybe even 200 years the higher upfront cost will pay off in the long run.

  • @rustybeatty6567

    @rustybeatty6567

    Жыл бұрын

    @@jennifer9528 the homes that have been built with 5X8 wood beam and have been around still today and were built before the 1900's.

  • @onestepunlock4475

    @onestepunlock4475

    Жыл бұрын

    @@rustybeatty6567 It takes around 20000 board feet of lumber to build a a 3000 sq ft house. Rough sawn white oak runs at $10 per board foot plus tax. Your framing would run you over $200K. You would gain absolutely no advantage over pine except for a better rot rating. It makes no difference because it's enclosed inside all the sheeting material anyways. Your house would be extremely heavy. Nails is a no go. You would need proper joinery. Add another 200K for labor. You also need to realize - you won't be able to run drywall screws into oak. There are plenty of houses built over a 100 years ago using pine. They will stand another 100. If you want to build a timeless fortress and willing to spend half a million on framing, why not build with brick/stone?

  • @user-lu9ut4dg4y
    @user-lu9ut4dg4y9 ай бұрын

    OSB is like CARD BOARD, i am not using this junk

  • @l.crossjr
    @l.crossjr3 жыл бұрын

    Cheapest crap I've ever seen. Almost looks like chineese junk. Not to mention OSB is a mold magnet, burns like paper, easily water damaged, and can easily warp. Only time will tell if it really works

  • @DaiMeechi-kun

    @DaiMeechi-kun

    2 жыл бұрын

    I mean this video was made back in the early 2000s and theyre still making them

  • @earlrussell1026
    @earlrussell10262 жыл бұрын

    You must love Jehovah your God with all your heart and with all your soul and with all your mind and with all your strength. You must love your neighbor as yourself. Jesus the anointed is Lord! Repent and be baptized and believe the Gospel.

  • @losttribe3001

    @losttribe3001

    2 жыл бұрын

    Or give up your puerile mythology and imaginary friends and start using this life to make the world better.

  • @jennifer9528

    @jennifer9528

    Жыл бұрын

    You must walk away from whatever drugs you've been snorting.

  • @indoorroadkill3369

    @indoorroadkill3369

    Жыл бұрын

    Keep your imaginary friend to yourself.

  • @aNeReplays

    @aNeReplays

    Жыл бұрын

    He's not wrong. You must repent, (turn from your sins againt God) and believe in the finished cross work of Christ. All have sinned and have fallen short of the glory of God. This means that we are all under his just condemnation. You know in your soul that you are an enemy of God. God demonstrates his love like this; while we were sinners Christ died for us. Even while we were enemys, he loved us and provided payment for us. A payment you'll never be able to pay.

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