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Filling void between base plate and concrete floor

Discussion in 'Floors, Stairs and Lofts' started by paulandfrodo, 1 Jun 2016.

  1. paulandfrodo


    6 Apr 2008
    Thanks Received:
    United Kingdom
    We have an uneven concrete floor. We are putting stud work on it. However, to ensure the base plate is level, we are packering it level with plastic shims.

    The shims are essentially 500mm part and we are using hammer in fixings to secure.

    To help distribute the 'load' that will eventually be transmitted through the walls, I would like to "fill" the gaps where the packers are not with "something".

    The gaps go between 5mm and 30mm. We need to fill stretches of upto about 400mm long under a 95x45 base plate.

    Any suggestions on what to use ? I was thinking of a cement / sand mix, quite dry and ramming it in ?
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