Building on a deck ? or remove the deck ?

Discussion in 'Floors, Stairs and Lofts' started by CPerth, 16 Feb 2021.

  1. CPerth

    CPerth

    Joined:
    8 Feb 2021
    Messages:
    10
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi all,

    I'm building a garden room (3 m v 3.8 m ) where there is currently a deck 4.8 m X 4

    When building the deck I went way overboard on the foundations.

    I'm really struggling with budget / time / and keen not to waste the good work on the very solid 2 year old deck.

    I'm trying to decide whether to

    A - rip the deck up - start from scratch .

    B - Use the existing decking joists to hold the flooring , insulate between them & create block pier foundations between existing deck joists for the wall plates (level) and roof to sit on . . . . .

    I'm guessing the main problem with option B ( apart from a more complexity ) is risk of water ingress as the floor joist would span out from under the building. Option b is getting more and more appealing , but consius it not ideal

    advice / thoughts apricated ?
     
  2. Sponsored Links
  3. big-all

    big-all

    Joined:
    12 Jul 2004
    Messages:
    19,159
    Thanks Received:
    1,513
    Location:
    Surrey
    Country:
    United Kingdom
    height off the decking comes off your 2.5m to avoid the need for planning as its from ground level
     
  4. JobAndKnock

    JobAndKnock

    Joined:
    30 Sep 2011
    Messages:
    6,858
    Thanks Received:
    1,487
    Location:
    Lancashire
    Country:
    United Kingdom
    I've always put decking in with a slight fall away from the house, to clear water (I live in a very wet part of the world) but I'd want any garden room floor to dead flat as well as slightly above the level.of the decking. This leaves me in favour of stripping part of the decking to leave the frame work) then building off that. So not quite either option, I'm afraid
     
  5. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page