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abbreviations in plan checking

Discussion in 'Residential Building Codes' started by Mac Moonfire, Aug 3, 2019.

  1. Mac Moonfire

    Mac Moonfire Registered User

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    Hi all,
    I am reviewing plans for a house and I am unsure of some abbreviations.
    English is not my mother tongue and the plans are from Canada

    "2&BTR" ei: 2x12 2&BTR SPF floor joists @400mm on center.
    "BU" ei: 2x10 BU flush beams over 6x6 S4S D-fir posts.
    "C/W" ei: Perforated perimeter drain pipe C/W (25mm) drain rock around perimeter.
    "DN 15 R" written just above exterior stairs
    "14 EQ R DN" written just above interior stairs
    "FF" ei: "R28 FF insulation C/W .15mm poly vapor barrier.
    "FRR" ei: Line of fire separation wall with rated FRR.
    "OH" ei: Drop foundation walls for 2745mm OH garage doors.
    "MBFE" This is a leveled elevation below foundations.
    "S4S" ei: 2x10 BU beams over 6x6 S4S D-fir posts
    "SPF" ei: All wall framing material shall be SPF #2or better.
    "STD" ei: 12.7mm STD sheating. 12.7mm STD ply all on engineered wood trusses.
    "SW" ei: Exhaust fan (2.0 sone) to exterior C/W timer SW.
    "RC" ei: Decorative timber truss over 184mm RC posts -D- fir.

    Thank you in advance for your help:D
     
  2. e hilton

    e hilton Bronze Member

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  3. fatboy

    fatboy Administrator

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    "2&BTR" ei: 2x12 2&BTR SPF floor joists @400mm on center. LUMBER GRADE
    "BU" ei: 2x10 BU flush beams over 6x6 S4S D-fir posts. BUILT UP
    "C/W" ei: Perforated perimeter drain pipe C/W (25mm) drain rock around perimeter. COVERED WITH
    "DN 15 R" written just above exterior stairs DOWN 15 RISES
    "14 EQ R DN" written just above interior stairs 14 EQUAL RISES DOWN
    "FF" ei: "R28 FF insulation C/W .15mm poly vapor barrier. FOIL FACED
    "FRR" ei: Line of fire separation wall with rated FRR. FIRE RESISTANT RATED
    "OH" ei: Drop foundation walls for 2745mm OH garage doors. OVER HEAD
    "MBFE" This is a leveled elevation below foundations. MAIN BASE FIELD ELEVATION (guess)
    "S4S" ei: 2x10 BU beams over 6x6 S4S D-fir posts SURFACED FOUR SIDES
    "SPF" ei: All wall framing material shall be SPF #2or better. SPRUCE/PINE/FIR (lumber species)
    "STD" ei: 12.7mm STD sheating. 12.7mm STD ply all on engineered wood trusses. STANDARD
    "SW" ei: Exhaust fan (2.0 sone) to exterior C/W timer SW. SWITCH
    "RC" ei: Decorative timber truss over 184mm RC posts -D- fir. ???
     
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  4. Pcinspector1

    Pcinspector1 Platinum Member

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  5. Pcinspector1

    Pcinspector1 Platinum Member

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    Thanks FB,
    I did not know all of them? Guessed at the MBFE.
    C/W that's a new one for me. I see E/W each way on plans.
     
  6. Pcinspector1

    Pcinspector1 Platinum Member

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    FF foil faced instead of friction fit, I'll have to watch for that one.
     
  7. Mac Moonfire

    Mac Moonfire Registered User

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    WOnderful! it all makes so much more sense now!
    Thank you all for the help! :D
     
  8. fatboy

    fatboy Administrator

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    The last one RC might be Red Cedar, but then it specs doug fir.......
     
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  9. Chrisjoneill

    Chrisjoneill Registered User

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    Any drawing set should have an abbreviations list for this reason...if we don't know what the abbreviations are how can we review plans?
     
  10. Pcinspector1

    Pcinspector1 Platinum Member

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    FF on a lot of plans mean: Finished Floor

    As far as insulation fb said Foil Faced and I said Friction Fit both could be correct. A key with abbreviations should be provided, agree.
     
  11. mark handler

    mark handler Sawhorse

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    All based on context
     
  12. my250r11

    my250r11 Sawhorse

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    RC may be Rough Cut Douglas Fir Posts
     
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  13. Pcinspector1

    Pcinspector1 Platinum Member

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    You might be right my250! "RC" Rough Cut post, make's sense to me.
     
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  14. ADAguy

    ADAguy Registered User

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    You folks never fail to "impress" me with your wealth of knowledge. Any of you been on Jepordy yet?
     
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  15. Pcinspector1

    Pcinspector1 Platinum Member

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    I've been in jeopardy before but not on it!:eek:
     
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  16. Mac Moonfire

    Mac Moonfire Registered User

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    I have come across a couple more abbreviations:
    SS [​IMG]
    PL wall [​IMG]
    PD [​IMG] [​IMG]
     
  17. e hilton

    e hilton Bronze Member

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    SS ... structural steel? Or a tag that refers back to a column schedule.
    PL ... plumbing?
    PD ... window designation code. Similar to SS.
     
  18. JPohling

    JPohling Sawhorse

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    what are the numbers then a X then numbers, never seen that
     
  19. tmurray

    tmurray Registered User

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    Size of opening in mm. I'm assuming this is a government project, so metric must be used.

    As far as the abbreviations go...I'm at a loss for most of them.
     
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  20. Pcinspector1

    Pcinspector1 Platinum Member

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    PD -Patio door
    PL - Plumbing wall
    SS - Staggered Studs or Stud Supports?
     
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