MyJobQuote Logomyjobquote
  • Post a Job
  • Trade Signup
  • Ask a Trade
  • Cost Guides
  • About
  • Login
  • Over 1 million homeowners and over 30,000 tradespeople
    use MyJobQuote nationwide each year

    Post a Job or Sign up as a trade
    Post a Job or Sign up as a trade

    Ask a Tradesman

    Sub floor on top of joists..is 12.5 ok

    Flooring Specialists

    Hi...my architect recommended a 22 mm subfloor on top of joists 600....the joiner put a 12.5 instead on top and said that will do.A real wood floor has to go on top.The sbmub floor squeaks. Is this ok?

    Asked by Anne on 1st Aug 2022
    Share this question

    Best Answer

    Ashby Flooring

    "Not recommended. You architect is correct.
    Best contact the finished flooring suppliers.
    Or the company fitting it."

    Answered on 1st Aug 2022 - Member since Jul 2022 - report
    Prestige Property Services

    "Hi
    12.5 mm seem to be extremely thin for a sub floor
    I’d of thought the minimum would need to be 18mm with a glued joint"

    Answered on 1st Aug 2022 - Member since Jan 2020 - report
    m barnard

    "22mm would be better but you can get away with 12.5 as long as you are putting down at least a 18mm floor over the top and that would have to be fix through the 12.5 and go into the joists"

    Answered on 1st Aug 2022 - Member since Jan 2019 - report
    UltraWood

    "If the architect recommended 22mm it must be 22mm and there is no conversation. The 60cm construction is for minimum 22mm boards. I don't understand why they were founded 12.5. In my opinion, a long layer must be applied crosswise so that the floor has sufficient resistance to sagging. Of course, it should be glued to the first layer. As for my eye, "saving". In this case, the joiner is not right. Kind regards,"

    Answered on 1st Aug 2022 - Member since Jan 2019 - report

    Ask a Trade

    Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.

    Ask your Question

    Related questions

    Ready to get a price for your home improvement project?

    get started
    x

    Report Content