What door lining for a 4 x 2 CLS wall

Discussion in 'Builders' Talk' started by Antony Murday, Jan 22, 2021.

  1. Antony Murday

    Antony Murday New Member

    I am about to build a CLS wall in my house and have decided to go with:
    • 38mm x 89mm (4x2) timber
    • 100mm thick Rockwool sound insulation
    • 12.5mm Knauf Sound panel tapered edge plasterboard
    • Gypsum Thistle Multi Finish Plaster.
    It's not a big wall and i have read lots of useful articles including this article (The best one i have read) but this is where i'm stuck, what door lining size do i need?

    I know the finished sizes are:
    • Timer = 89mm
    • Plasterboard = 25mm (one each side)
    • PLaster = 4mm (i've read about on each side)
    So with the above sizes, is the door lining i need something like 27.5mm x 120mm?

    Timber and wood coming from Wickes and on the timber page, it recommends the above size but not too sure at all.
  2. Severntrent

    Severntrent Screwfix Select

    Wickes do a internal door frame sized at 120mm, specifically for your situation I should imagine when 3mm plaster is used
  3. Jord86

    Jord86 Screwfix Select

    4 3/4" or 120mm door lining.

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