Hire the best Home Extension Experts

Double Bottom Plate??

Results 1 to 7 of 7
  1. #1
    Senior Member
    Join Date
    Jun 2009
    Location
    Langwarrin, Melbourne
    Posts
    139

    Default Double Bottom Plate??

    Anyone ever build a frame with a Double Bottom Plate? 2No. 45x90

    I've got this on my Framing Schedule for a new extension (timber and brick vaneer). Whats the purpose of it ?

  2. #2
    1K Club Member
    Join Date
    Nov 2008
    Location
    Sydney
    Posts
    1,108

    Default

    Is it perpendicular to your joists, and load bearing?

  3. #3
    Senior Member
    Join Date
    Jun 2009
    Location
    Langwarrin, Melbourne
    Posts
    139

    Default

    Quote Originally Posted by cherub65 View Post
    Is it perpendicular to your joists, and load bearing?
    The Double Bottom Plate has been specified in general - so thats right around the perimeter of the house.

  4. #4
    The Master's Apprentice Bedford's Avatar
    Join Date
    May 2009
    Location
    Yarra Valley Vic oz
    Posts
    8,246

    Default

    I know you said timber and brick veneer, but is it on a slab floor?

  5. #5
    Senior Member
    Join Date
    Jun 2009
    Location
    Langwarrin, Melbourne
    Posts
    139

    Default

    Yes, slab on flat Class M ground

  6. #6
    Senior Member
    Join Date
    Sep 2008
    Location
    Melbourne
    Posts
    179

    Default

    I don't think I've ever seen double bottom plates in a slab situation. I'd say it's just a lazy Draughtsman / Architect with a cut and paste button.

    Personally I prefer double bottom plates and do this most of the time.

    45mm plates need 90mm nails (cost three times more)
    2x 35mm plates does not cost any more than one 45mm if you factor in the cost of 90mm nails.
    35mm plates are a little bit easier to straighten.
    First plate can be straightened without studs in the way. (easier to see than an old chalk line mark)
    Wall frames can be straightened with a good G clamp

  7. #7
    Senior Member
    Join Date
    Jun 2009
    Location
    Langwarrin, Melbourne
    Posts
    139

    Default

    Just to let you know the outcome, I questioned the Engineer about the necessity for the double bottom plate and his response was ...

    'you can use just the one if you want to'


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •