I dont know why they have to lie about it. At $5/8ft board you’d think I paid for the full 1.5. Edit: I mixed up nominal with actual.

  • cosmicrookie@lemmy.world
    link
    fedilink
    English
    arrow-up
    32
    arrow-down
    4
    ·
    6 months ago

    No its not Maybe in the US? At least here, it is and has to be, very precise especially when it comes to industry quality. It is precise down to the mm!

    • SchmidtGenetics@lemmy.world
      link
      fedilink
      English
      arrow-up
      15
      arrow-down
      1
      ·
      edit-2
      6 months ago

      How does that work when wood varies due to moisture content? If they give precise mm measurements, only 20% of boards will meet those criteria.

      All they are giving is the planned dimensions instead of nominal in mm form, it’s still not precise, it can’t be.

      • lad@programming.dev
        link
        fedilink
        English
        arrow-up
        2
        arrow-down
        3
        ·
        6 months ago

        Maybe they mill, store, and sell under the same moisture conditions?

        Also, how big is the difference in size and moisture for the same piece of wood? I would expect that moisture is usually not higher than 90% and not lower than 10% or something like that, but don’t know how it really is

        • SchmidtGenetics@lemmy.world
          link
          fedilink
          English
          arrow-up
          6
          arrow-down
          2
          ·
          edit-2
          6 months ago

          Once it leaves the mill they go to various stores and regions with different conditions. Some places store them inside, others outside.

          Once I buy it at the store and take it the site, it’s now different from the store. You should acclimate all lumber for 48 hours before using it as well, this is so the wood doesn’t swell or shrink more after installing it.

          A 2x10 can be anywhere from 9-1/2 to almost 8-1/2 depending on final site conditions.

    • Auli@lemmy.ca
      link
      fedilink
      English
      arrow-up
      8
      arrow-down
      3
      ·
      6 months ago

      Bullshit. Wood expands and contracts so ther is no way you can be precious down to the mm.

      • Thorry84@feddit.nl
        link
        fedilink
        English
        arrow-up
        5
        ·
        6 months ago

        That’s why the standards specify the moisture content of the wood as well as the dimensions. This is even the case for US standards.

      • intensely_human@lemm.ee
        link
        fedilink
        English
        arrow-up
        2
        arrow-down
        3
        ·
        6 months ago

        I’ve not really encountered this wood expanding and contracting thing. Are you sure?

          • usualsuspect191@lemmy.ca
            link
            fedilink
            English
            arrow-up
            3
            arrow-down
            1
            ·
            6 months ago

            True, but the amount they shrink and grow across the grain tends to be proportional. A 2x4 is very rarely measurably different from 1.5"x3.5", but a 2x10 (like you’ve shown) is 1.5"x9 1/4" but is often anywhere between 9 1/8" to 9 3/8"

    • AnUnusualRelic@lemmy.world
      link
      fedilink
      English
      arrow-up
      5
      arrow-down
      2
      ·
      6 months ago

      That’s crazy, how can you make a profit if you give the customer the exact measurement? You have to saw a bit off and pad your earnings!