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Old profile sizes

Discussion in 'General Discussion' started by Kunstmaan, Dec 6, 2018.

  1. Kunstmaan

    Kunstmaan Senior Member


    I am asked to recreate a drawing from 1916.

    In that drawing there is a floor constructed from profiles e.g. C No. 18, I No. 18.
    Can or may I asume that these are profiles 180mm high??


    Attached Files:

  2. DavidJ

    DavidJ Alibre Super User

    That looks like a reasonable assumption - but it is just that, an assumption.
  3. NateLiqGrav

    NateLiqGrav Alibre Super User

    I wouldn't assume that. No. 18 could simply indicate page 18 with notes or a note No. 18

    Things were all over the map back then with many manufactures making their own sizes. The only way to know for sure is to either measure an existing structure or find an accompanying document with size or manufacturer.

    I did find a source that lists Old British Standard Beam sizes published in 1903 that includes BSB Ref No. 18 (see page 21)

    Here is another source so you can see there were many variations.

    Attached Files:

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