Results 1 to 16 of 16

Thread: sill plate

  1. #1
    Join Date
    Mar 2007
    Location
    Connecticut
    Posts
    1,822

    Default sill plate

    I always theough that a doubled 2x6 was required for a sill plate but I can't find the code in my book. Anyone have this? I did a home today with a single and it was all over the place so now I'm trying to find the Santa clause so to speak.

    Similar Threads:
    OREP Home Inspector E&O Insurance 2

  2. #2
    Ron Bibler's Avatar
    Ron Bibler Guest

    Default Re: sill plate

    Is this for a 2 story ? Why 2X6 ?

    In Calif 1 2x4 PT plate is code.

    Best

    Ron


  3. #3
    Join Date
    Mar 2007
    Location
    Connecticut
    Posts
    1,822

    Default Re: sill plate

    Yes 2 story. 2x6 2x4 no matter. My concern is whether we need them stacked, doubled. One on top of the other. This house had one plate set on the top of the block.


  4. #4
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,286

    Default Re: sill plate

    Quote Originally Posted by wayne soper View Post
    I always theough that a doubled 2x6 was required for a sill plate but I can't find the code in my book. Anyone have this? I did a home today with a single and it was all over the place so now I'm trying to find the Santa clause so to speak.

    I rarely see doubled mudsills. A single mudsill is standard, at least in my area.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  5. #5
    Join Date
    Mar 2007
    Location
    Connecticut
    Posts
    1,822

    Default Re: sill plate

    Thanks Gun!


  6. #6
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,317

    Default Re: sill plate

    The only reason to double them is to spread the load to supports not aligned with the load above, such as with single and double top plates. Single top plates require the joists/trusses to be closely aligned with the studs below, a doubled top plate eliminates that alignment need - the joists/trusses can now land wherever they fall.

    When place on concrete, there is no need to double it.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  7. #7

    Default Re: sill plate

    The only reason to double them is to spread the load to supports not aligned with the load above, such as with single and double top plates. Single top plates require the joists/trusses to be closely aligned with the studs below, a doubled top plate eliminates that alignment need - the joists/trusses can now land wherever they fall.
    Or, to raise the floor system a little, etc.


  8. #8
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,317

    Default Re: sill plate

    Quote Originally Posted by Brandon Whitmore View Post
    Or, to raise the floor system a little, etc.
    Depends, might not raise the floor system, might make the walls taller.

    Depending on where it was.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  9. #9
    Ron Bibler's Avatar
    Ron Bibler Guest

    Default Re: sill plate

    Sometimes 2 plates are used with the application of a soft concrete floating floor. like Jib-Crete.

    Best

    Ron


  10. #10
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,317

    Default Re: sill plate

    Ron,

    That's Gyp-Crete.

    The "Gyp" part stands for "gypsum".

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  11. #11
    Ron Bibler's Avatar
    Ron Bibler Guest

    Default Re: sill plate

    Never ues the stuff. L.O.L.

    Jerry its just got to drive you nuts with some of us num-skulls around hear.

    Thanks for the correction.

    Best

    Ron

    Last edited by Ron Bibler; 06-12-2008 at 08:29 AM.

  12. #12
    Steve Lowery's Avatar
    Steve Lowery Guest

    Default Re: sill plate

    ... the Marx Bros. "Everybody knows there's no such thing as a sanity clause".


  13. #13

    Default Re: sill plate

    Depends, might not raise the floor system, might make the walls taller.

    Depending on where it was.
    Dang it Jerry, that's why I threw in the "etc.", because I knew that was coming.

    I should have said "to raise the framing"


  14. #14
    Join Date
    Jul 2008
    Location
    Lancaster, CA
    Posts
    153

    Default Re: sill plate

    Just to throw in there. Standard would be a single 2x (or 3x) plate with 2 top plates with. PT over concrete and such.

    Only thing I can think of with doubling plates.

    Haven't built anything with doubled sill on bottom but have built with 3x bottom plate and a few 3x studs at breaks for shear.

    On second floor apps, even with doubled plate over certain types of joist spans (?? as mentioned) would leave me with having to attach plates with SDS screws or some hardware, that wouldn't be any fun.

    So, in short doubled joists are common as are double top plates.

    Tim


  15. #15
    Join Date
    Mar 2007
    Location
    Healdsburg, CA
    Posts
    1,741

    Default Re: sill plate

    When confronted with doubled sill palates installed on the top of foundation stem walls Iím concerned should I see anchor bolting in that the builder used proper length steel anchor bolts to get the required 7 inch depth into concrete. If I donít see visual evidence of bolting then Iím concerned they may not exist? Either way triggers the appropriate comment in my report. I never framed with single top plates and never actually saw anyone else do it in the 35 years I spent as a builder. The codes do allow it, but only under certain conditions. (imposed loads)

    Jerry McCarthy
    Building Code/ Construction Consultant

  16. #16
    Join Date
    Mar 2007
    Location
    Connecticut
    Posts
    1,822

    Default Re: sill plate

    That was the first time i'd seen it too. And went in as a 3 stooges type application if I remember correctly.
    YouTube - Jerks of All Trades - 3 stooges Pilot never aired part 1


Bookmarks

Posting Permissions

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