| Abbreviation
|
Meaning
|
| A
|
Area, Ampere; Acre; Alcove; Compressed Air Line
|
| AB
|
Anchor Bolt; Asbestos Board
|
| ABV
|
Above
|
| AC
|
Air Conditioning, Alternating Current, Acoustical
|
| ACC
|
Access
|
| ACF
|
Architectural Concrete Finish
|
| ACFL
|
Access Floor
|
| ACI
|
American Concrete Institute
|
| ACL
|
Across the Line
|
| ACOUST
|
Acoustical
|
| ACPL
|
Acoustical Plaster
|
| ACR
|
Acrylic
|
| ACST
|
Acoustic
|
| ACT
|
Acoustical Tile; Actual
|
| AD
|
Access Door, Area Drain
|
| ADA
|
Americans with Disabilities Act of 1992
|
| ADAAG
|
Americans with Disabilities Act Architectural Guidelines
|
| ADD
|
Addendum; Addition
|
| ADDL
|
Additional
|
| ADH
|
Adhesive
|
| ADJ
|
Adjust, Adjustable, Adjacent
|
| AF
|
Above the Floor
|
| AFF
|
Above Finished Floor
|
| AGA
|
American Gas Association
|
| AGG
|
Aggregate
|
| AGGR
|
Aggregate
|
| AIA
|
American Institute of Architects, American Insurance Association
|
| AIC
|
Amperes Interrupting Circuit
|
| AIEE
|
American Institute of Electrical Engineers
|
| AISC
|
American Institute of Steel Construction
|
| AL
|
Aluminum
|
| ALM
|
Alarm
|
| ALS
|
Acrylic Latex Sealant
|
| ALT
|
Alternate, Alteration; Altitude
|
| ALUM
|
Aluminum
|
| AMB
|
Ambient
|
| AMP
|
Ampere, Ampacity
|
| AMPY
|
Ampere
|
| AMT
|
Amount
|
| AN
|
Anode
|
| ANCH
|
Anchor, Anchorage
|
| ANN
|
Annunciator
|
| ANOD
|
Anodized
|
| ANT
|
Antenna
|
| AP
|
Access Panel
|
| APPD
|
Approved
|
| APPROX
|
Approximate
|
| APRVD
|
Approved
|
| APT
|
Apartment
|
| APX
|
Approximate
|
| AR
|
Acid Resisting
|
| ARCH
|
Architect, Architectural
|
| ARS
|
Asbestos Roof Shingles
|
| AS
|
Acoustic Sealant
|
| ASB
|
Asbestos
|
| ASC
|
Above Suspended Ceiling
|
| ASCE
|
American Society of Civil Engineers
|
| ASME
|
American Society of Mechanical Engineers
|
| ASPH
|
Asphalt
|
| ASSEM
|
Assemble
|
| ASSOC
|
Association; Associate
|
| ASSY
|
Assembly
|
| ASTM
|
American Society for Testing and Materials
|
| AT
|
Acoustical Tile; Asphalt Tile
|
| ATC
|
Acoustical Tile Ceiling
|
| ATM
|
Automatic Teller Machine; Atmospheric
|
| ATTEN
|
Attenuation
|
| AUTH
|
Authorized
|
| AUTO
|
Automatic
|
| AVG
|
Average
|
| AW
|
Acid Waste
|
| AWG
|
American Wire Gauge
|
| AWM
|
Automatic Washing Machine
|
| AWS
|
American Welding Society
|
| AWWA
|
American Water Works Association
|
| AX
|
Axis
|
| B
|
Boiler, Bathroom, Bidet
|
| B & B
|
Balled and Burlapped, Bell and Bell
|
| B & F
|
Bell and Flange
|
| B & S
|
Bell and Spigot, Brown & Sharp
|
| B TO B
|
Back to Back
|
| B/
|
Bottom (of)
|
| BA
|
Bulb Angle
|
| BAF
|
Baffle
|
| BAL
|
Balance, Ballast
|
| BB
|
Buffalo Box, Ball Bearing,, Bulletin Board
|
| BBD
|
Bulletin Board
|
| BBL
|
Barrel
|
| BC
|
Broom Closet
|
| BD
|
Board, Blow Down (pipe)
|
| BDL
|
Bundle
|
| BDRM
|
Bedroom
|
| BDY
|
Boundary
|
| BEL
|
Below
|
| BET
|
Between
|
| BETW
|
Between
|
| BEV
|
Bevel
|
| BF
|
Board Foot, Back Face, Bottom Face, Both Faces, Boiler Feed
|
| BG
|
Bag (e.g., of cement)
|
| BHD
|
Bulkhead
|
| BHP
|
Brake Horsepower
|
| BIT
|
Bituminous
|
| BJF
|
Bituminous Joint Filler
|
| BKR
|
Breaker
|
| BL
|
Base Line, Building Line, Block
|
| BLDG
|
Building
|
| BLK
|
Block
|
| BLKG
|
Blocking
|
| BLO
|
Blower
|
| BLR
|
Boiler
|
| BLT
|
Borrowed Lite, Bullet Tips (Hinges)
|
| BLT-IN
|
Built-In
|
| BM
|
Beam, Bench Mark
|
| BMT
|
Butyl Mastic Tape Sealant
|
| BN
|
Bullnose
|
| BNDG
|
Bending (re-bars)
|
| BNT
|
Bent
|
| BO
|
Blow Off
|
| BOT
|
Bottom
|
| BP
|
Base Plate, Blueprint, Bypass
|
| BPL
|
Bearing Plate
|
| BR
|
Bedroom, Brick, Brass, Boiler Room Branch
|
| BRDG
|
Bridge, Bridging
|
| BRG
|
Bearing
|
| BRK
|
Brick
|
| BRKR
|
Breaker
|
| BRKT
|
Bracket
|
| BRS
|
Butyl Rubber Sealant, Brass
|
| BRZ
|
Bronze
|
| BRZG
|
Brazing
|
| BS
|
Both Sides, Backset, Bluestone
|
| BSMT
|
Basement
|
| BT
|
Bathtub, Bolt
|
| BTR
|
Better
|
| BTU
|
British Thermal Units
|
| BTUH
|
British Thermal Units per Hour
|
| BUR
|
Built-up Roof
|
| BUZ
|
Buzzer
|
| BV
|
Butterfly Valve
|
| BVL
|
Bevelled
|
| BW
|
Both Ways
|
| BWV
|
Back Water Valve
|
| BYP
|
By Pass
|
| C
|
Courses, Curb, Channel, Degrees Celsius, Clock Outlet, Calcimine
|
| C TO C
|
Center to Center
|
| C.I.
|
Cast Iron
|
| C.O.
|
Cased Opening
|
| C/C
|
Center to Center
|
| CA
|
Compressed Air
|
| CAB
|
Cabinet
|
| CAD
|
Cadmium, Computer-Aided Drafting
|
| CAIS
|
Caisson
|
| CAP
|
Capacity
|
| CAR
|
Carpet
|
| CARP
|
Carpenter
|
| CAT
|
Catalog
|
| CAV
|
Cavity
|
| CB
|
Catch Basin, Concrete Block,
|
| CBL
|
Concrete Block
|
| CBX
|
Cast Box Strike
|
| CC
|
Cubic Centimeter
|
| CCT
|
Circuit
|
| CCTV
|
Closed Circuit TV
|
| CCW
|
Counter Clockwise
|
| CD
|
Cold Drawn, Cadmium
|
| CDS
|
Cold Drawn Steel
|
| CEL
|
Cellar
|
| CEM
|
Cement
|
| CEM AB
|
Cement Asbestos Board
|
| CER
|
Ceramic
|
| CF
|
Cubic Feet
|
| CFL
|
Counterflashing
|
| CFM
|
Cubic Feet per Minute
|
| CFS
|
Cubic Feet per Second
|
| CFT
|
Cubic Foot
|
| CG
|
Corner Guard
|
| CH
|
Coat Hook
|
| CHAM
|
Chamfer
|
| CHAN
|
Channel
|
| CHB
|
Chalk Board
|
| CHBD
|
Chalkboard
|
| CHR
|
Chilled Water Return
|
| CHS
|
Chilled Water Supply
|
| CI
|
Cast Iron
|
| CIN BL
|
Cinder Block
|
| CIP
|
Cast Iron Pipe, Cast-in-Place
|
| CIR
|
Circle, Circular, Circuit
|
| CIRC
|
Circumference
|
| CISP
|
Cast Iron Soil/sewer Pipe
|
| CITG
|
Clear Insulating Tempered Glass
|
| CJ
|
Control Joint
|
| CJF
|
Cork Joint Filler
|
| CK
|
Caulking
|
| CKT
|
Circuit
|
| CL
|
Centerline, Clearance, Closing, Closure, Class, Closet
|
| CLG
|
Ceiling
|
| CLH
|
Clothes Line Hook
|
| CLKG
|
Caulking
|
| CLL
|
Contract Limit Line
|
| CLO
|
Closet
|
| CLP
|
Clamp
|
| CLR
|
Clear
|
| CLR OPG
|
Clear Opening
|
| CLS
|
Closure
|
| CM
|
Circular Mil (1/1000 inch), Center Matched
|
| CMP
|
Corrugated Metal Pipe
|
| CMT
|
Ceramic Mosaic Tile
|
| CMU
|
Concrete Masonry Unit
|
| CMUP
|
Concrete Masonry Unit Painted
|
| CND
|
Condition, Conduit
|
| CNDS
|
Condensate
|
| CNTR
|
Center, Counter
|
| CNVR
|
Conveyor
|
| CO
|
Company, Cleanout, Cased Opening, Cut Out
|
| CO & DP
|
Cleanout & Deck Plate
|
| COAX
|
Coaxial
|
| COD
|
Cleanout Door
|
| COEF
|
Coefficient
|
| COL
|
Column
|
| COM
|
Common
|
| COMB
|
Combination, Combustion
|
| COML
|
Commercial
|
| COMM ED
|
Commonwealth Edison
|
| COMP
|
Composition, Compressed
|
| COMPO
|
Composition
|
| COMPT
|
Compartment
|
| CON
|
Construction
|
| CONC
|
Concrete
|
| CONCP
|
Concrete Painted
|
| COND
|
Condenser, Conduit
|
| CONN
|
Connection
|
| CONST
|
Construction
|
| CONSTR
|
Construction
|
| CONT
|
Continuous, Continue, Control
|
| CONTR
|
Contractor
|
| CONV
|
Convector, Convenience
|
| COP
|
Copper
|
| COR
|
Corner, Corridor
|
| CORR
|
Corridor, Corrugate
|
| COV
|
Cover
|
| CP
|
Cathodic Protection, Clothes Pole, Cesspool
|
| CPE
|
Chlorinated Polyethylene
|
| CPL
|
Cement Plaster
|
| CPP
|
Cement Plaster Painted
|
| CPR
|
Copper
|
| CPT
|
Carpet
|
| CR
|
Chromium (plated), Curtain Rod
|
| CRPT
|
Carpet
|
| CRS
|
Course, Cold Rolled Steel
|
| CS
|
Countersink, Cast Steel, Cast Stone, Commercial Standard
|
| CSG
|
Casing
|
| CSK
|
Countersink
|
| CSMT
|
Casement
|
| CSN
|
Caisson
|
| CSS
|
Countersunk Screw
|
| CSTG
|
Casting
|
| CT
|
Ceramic Tile, Cork Tile,
|
| CTD
|
Coated
|
| CTR
|
Center, Counter
|
| CTSC
|
Communications Systems Terminal Cabinet
|
| CTSK
|
Countersunk
|
| CTWT
|
Counterweight
|
| CU
|
Copper, Cubic, Coefficient of Utilization
|
| CU. FT.
|
Cubic Feet
|
| CU. YD.
|
Cubic Yard
|
| CUR
|
Current
|
| CV
|
Check Valve
|
| CW
|
Clockwise, Cold Water
|
| CWP
|
Circulating Water Pump
|
| CWR
|
Condensate Waste Return
|
| CWS
|
Condensate Waste Supply
|
| CY
|
Cubic Yard, Cycle
|
| CYL
|
Cylinder
|
| CYL L
|
Cylinder Lock
|
| Cast Brass, Coal Bin
|
| Cem P
|
Cement Water Paint
|
| Cone Tip (hinges)
|
| D
|
Deep, Depth, Drop, Drain
|
| D & M
|
Dressed & Matched
|
| DA
|
Double Acting
|
| DB
|
Decibel
|
| DBL
|
Double
|
| DBT
|
Drybulb Temperature
|
| DC
|
Direct Current
|
| DCV
|
Detector Check Valve
|
| DD
|
Driveway Drain, Deck Drain
|
| DEG
|
Degree
|
| DEGC
|
Degree Celcius
|
| DEGF
|
Degree Farenheit
|
| DEM
|
Demolish
|
| DEMO
|
Demolition
|
| DEP
|
Dpressed
|
| DEPT
|
Department
|
| DET
|
Detail
|
| DF
|
Drinking Fountain
|
| DH
|
Double Hung
|
| DIA
|
Diameter
|
| DIAG
|
Diagonal
|
| DIAM
|
Diameter
|
| DIFF
|
Diffuser
|
| DIM
|
Dimension
|
| DISL
|
Disposal
|
| DISP
|
Dispenser
|
| DIV
|
Division
|
| DL
|
Dead Load
|
| DMH
|
Drop Manhole
|
| DMT
|
Demountable
|
| DN
|
Down
|
| DO
|
Ditto, or Door Opening
|
| DP
|
Dampproofing, Dew Point, Distribution Panel
|
| DPDT
|
Double Pole Double Throw
|
| DPR
|
Damper
|
| DPST
|
Double Pole Single Throw
|
| DR
|
Door, Drain, Dining Room
|
| DRBD
|
Drainboard
|
| DS
|
Downspout
|
| DS
|
Downspout, Disconnect Switch, Door Switch
|
| DSP
|
Dry Standpipe
|
| DSP
|
Dry Standpipe
|
| DT
|
Drain Tile
|
| DTL
|
Detail
|
| DVTL
|
Dovetail
|
| DW
|
Dumbwaiter, Distilled Water
|
| DWG
|
Drawing
|
| DWGS
|
Drawings
|
| DWL
|
Dowel
|
| DWP
|
Drywall, Painted
|
| DWR
|
Drawer
|
| DX
|
Direct Expansion, Duplex
|
| E
|
East, Enamel, Exhaust
|
| E TO E
|
End to End
|
| EA
|
Each
|
| EB
|
Expansion Bolt
|
| EC
|
Exposed Construction
|
| ECC
|
Eccentric
|
| ECP
|
Exposed Construction Painted
|
| EDR
|
Equivalent Direct Radiation
|
| EE
|
Each End
|
| EF
|
Each Face
|
| EFTS
|
Expanding Foam Tape Sealant
|
| EG
|
Edge Grain
|
| EIFS
|
Exterior Insulation and Finish System
|
| EJ
|
Expansion Joint
|
| EJECT
|
Ejector
|
| EL
|
Elevation, Elevator
|
| ELB
|
Elbow
|
| ELEC
|
Electrical
|
| ELECT
|
Electrical
|
| ELEV
|
Elevator, Elevation
|
| ELP
|
Emergency Lighting Panel
|
| EM
|
Emergency
|
| EMER
|
Emergency
|
| ENAM
|
Enamel
|
| ENCL
|
Enclosure
|
| ENG
|
Engineer
|
| ENGR
|
Engineer
|
| ENJF
|
Expanded Neoprene Joint Filler
|
| ENT
|
Entrance
|
| ENTR
|
Entrance
|
| EP
|
Electrical Panelboard, Explosion Proof
|
| EPDM
|
Ethylene Propylene Diene Monomer
|
| EPJF
|
Expanded Polyethelene Joint Filler
|
| EQ
|
Equal
|
| EQP
|
Equipment
|
| EQPT
|
Equipment
|
| EQUIP
|
Equipment
|
| ERP
|
Emergency Receptacle Panel
|
| ESC
|
Escalator
|
| EST
|
Estimate
|
| EVAP
|
Evaporator
|
| EW
|
Each Way
|
| EW & C
|
Electric Wiring and Communication
|
| EWC
|
Electric Water Cooler
|
| EWH
|
Electric Water Heater
|
| EX
|
Exposed Construction, Exit
|
| EXC
|
Excavate
|
| EXCAV
|
Excavate
|
| EXEC
|
Executive
|
| EXG
|
Existing
|
| EXH
|
Exhaust
|
| EXH AIR
|
Exhaust Air
|
| EXIST
|
Existing
|
| EXP
|
Expansion, Exposed
|
| EXPN
|
Expansion
|
| EXPP
|
Existing Patched and Painted
|
| EXS
|
Extra Strong
|
| EXT
|
Exterior, Extinguish
|
| EXTR
|
Extrude
|
| F
|
Degrees Fahrenheit, Fuse
|
| F TO F
|
Face to Face
|
| FA
|
Fire Alarm, Fresh Air
|
| FAB
|
Fabricate
|
| FABR
|
Fabricate
|
| FACP
|
Fire Alarm Control Panel
|
| FAG
|
Fire Alarm Gong
|
| FAO
|
Finish All Over
|
| FAR
|
Floor Area Ratio
|
| FAST
|
Fastener, Fasten
|
| FB
|
Flat Bar, Face Brick, Floor Box
|
| FBD
|
Fiberboard
|
| FBM
|
Foot Board Measure
|
| FBP
|
Fabric Panel
|
| FBRK
|
Fire Brick
|
| FC
|
File Cabinet, Foot Candle, Fault Current
|
| FD
|
Floor drain
|
| FDC
|
Fire Department Connection
|
| FDN
|
Foundation
|
| FDTN
|
Foundation
|
| FE
|
Fire Extinguisher
|
| FEC
|
Fire Extinguisher Cabinet
|
| FF
|
Far Face, Finished Floor, Factory Finish
|
| FF&E
|
Fixtures, Furnishings & Equipment
|
| FFE
|
Finished Floor Elevation
|
| FFL
|
Finished Floor Line
|
| FGL
|
Fiberglass
|
| FGR
|
Fiberglass reinforced
|
| FH
|
Flat Head, Fire Hose
|
| FHC
|
Fire Hose Cabinet
|
| FHMS
|
Flat head machine screw
|
| FHR
|
Fire Hose Rack
|
| FHS
|
Fire Hose Station
|
| FHWS
|
Flat Head Wood Screw
|
| FHY
|
Fire Hydrant
|
| FIL
|
Fillet
|
| FIN
|
Finish, finished
|
| FITG
|
Fitting
|
| FIX
|
Fixture
|
| FIXT
|
Fixture
|
| FL
|
Floor, Fire Line
|
| FLASH
|
Flashing
|
| FLEX
|
Flexible
|
| FLG
|
Flange, Flashing, Flooring
|
| FLG
|
Flooring
|
| FLR
|
Floor
|
| FLUOR
|
Fluorescent
|
| FLX
|
Flexible
|
| FM
|
Fire Main, Factory Mutual Company
|
| FND
|
Feminine Napkin Dispenser, Foundation
|
| FO
|
Finished Opening
|
| FOB
|
Free On Board
|
| FOC
|
Face of Concrete
|
| FOF
|
Face of Finish
|
| FOS
|
Face of Studs
|
| FP
|
Fireproof
|
| FPL
|
Fireplace
|
| FPM
|
Feet per minute
|
| FPRF
|
Fireproof
|
| FPS
|
Feet per Second
|
| FR
|
Frame, Front, Fire Riser
|
| FRG
|
Forged
|
| FRM
|
Frame
|
| FRPF
|
Fireproof
|
| FRT
|
Fire Retardant
|
| FS
|
Full Size, Far Side, Federal Standards, Fused Switch, Floor Sink
|
| FSCW
|
Flush Solid Core Wood
|
| FT
|
Foot, Feet, Fully Tempered
|
| FTG
|
Footing, Fitting
|
| FUR
|
Furred
|
| FURN
|
Furnish, Furniture
|
| FURR
|
Furring
|
| FUT
|
Future
|
| FVC
|
Fire Valve Cabinet
|
| G
|
Gas, Girder, Gutter, Gram
|
| GA
|
Gauge, Gage
|
| GAGE
|
Gauge
|
| GAL
|
Gallon
|
| GALV
|
Galvanized
|
| GB
|
Grab Bar, Glass Block, Gypsum Board
|
| GC
|
General Contractor
|
| GCMU
|
Glazed Concrete Masonry Unit
|
| GD
|
Guard, Grade, Gutter Drain
|
| GEN
|
General, Generator
|
| GENL
|
General
|
| GF
|
Ground Face
|
| GFCI
|
Ground Fault Circuit Interrupted
|
| GFI
|
Ground Fault Interrupted
|
| GFRC
|
Glass Fiber Reinforced Concrete
|
| GI
|
Galvanized Iron
|
| GKT
|
Gasket
|
| GL
|
Glass
|
| GL BLK
|
Glass Block
|
| GLB
|
Glass Block
|
| GLVA
|
Globe Valve
|
| GLZ
|
Glaze
|
| GMU
|
Glazed Masonry Unit
|
| GND
|
Ground
|
| GOVT
|
Government
|
| GP
|
Galvanized Pipe
|
| GPDW
|
Gypsum Drywall
|
| GPH
|
Gallons Per Hour
|
| GPL
|
Gypsum Lath
|
| GPM
|
Gallons Per Minute
|
| GPP
|
Gypsum Plaster Painted
|
| GPPL
|
Gypsum Plaster
|
| GPS
|
Gallons Per Second
|
| GR
|
Grade, Grille, Granite
|
| GRAN
|
Granular, Granite
|
| GRND
|
Ground
|
| GRTG
|
Grating
|
| GSS
|
Galvanized Sheet Steel
|
| GSU
|
Glazed Structural Unit
|
| GT
|
Grout
|
| GV
|
Galvanized
|
| GVA
|
Gate Valve
|
| GVL
|
Gravel
|
| GYP
|
Gypsum
|
| GYP BD
|
Gypsum Board
|
| H
|
High
|
| HA
|
Hectare
|
| HB
|
Hose Bib
|
| HBD
|
Hardboard
|
| HC
|
Hollow Core, Handicapped (better called Accessible")
|
| HCT
|
Hollow Clay Tile
|
| HD
|
Head, Heavy Duty
|
| HDCP
|
Handicapped (better called "Accessible")
|
| HDN
|
Harden
|
| HDR
|
Header
|
| HDW
|
Hardware
|
| HDWD
|
Hardwood
|
| HDWE
|
Hardware
|
| HEX
|
Hexagonal
|
| HGR
|
Hanger
|
| HGT
|
Height
|
| HH
|
Handhole
|
| HHMB
|
Hex Head Machine Bolt
|
| HID
|
High Intensity Discharge
|
| HK
|
Hook or Hooks
|
| HKD
|
Hooked (re-bars)
|
| HL
|
Hydrant Line
|
| HM
|
Hollow Metal
|
| HMP
|
Hollow Metal, Painted
|
| HNCG
|
Hollow Neoprene Compression Gasket
|
| HOR
|
Horizontal
|
| HORIZ
|
Horizontal
|
| HOSP
|
Hospital
|
| HP
|
High Point, High Pressure, Horse Power
|
| HPS
|
High Pressure Sodium, High Pressure Steam
|
| HR
|
Hour
|
| HRS
|
Hot Rolled Steel, Hours
|
| HS
|
Heat Strengthened
|
| HSG
|
Housing
|
| HT
|
Height, Heat, High Tension Duct
|
| HTG
|
Heating
|
| HTR
|
Heater
|
| HTW
|
High Temperature Water
|
| HV
|
High Voltage
|
| HVAC
|
Heating, Ventilating & Air Conditioning
|
| HVY
|
Heavy
|
| HW
|
Hot Water, Heavy Wall
|
| HWC
|
Hot Water Circulating, Heavy Wall Conduit
|
| HWD
|
Hardwood
|
| HWH
|
Hot Water Heater
|
| HWR
|
Hot Water Recirculating Return
|
| HWS
|
Hot Water Supply
|
| HWY
|
Highway
|
| HYD
|
Hydraulic
|
| HYDRO
|
Hydrostatic
|
| HZ
|
Hertz (Cycles Per Second)
|
| I
|
Iron, Current (electrical)
|
| IBV
|
Indicating Butterfly Valve
|
| IC
|
Interrupting Capacity
|
| ID
|
Inside Diameter
|
| IE
|
Invert Elevation
|
| ILK
|
Interlock
|
| IMH
|
Inlet Manhole
|
| IN
|
Inch
|
| INC
|
Incandescent
|
| INCAND
|
Incandescent
|
| INCIN
|
Incinerator
|
| INCL
|
Incline, Include
|
| INCR
|
Increase
|
| INFO
|
Information
|
| INS
|
Insulate, Insulation
|
| INSP
|
Inspect
|
| INSTL
|
Install
|
| INSUL
|
Insulation
|
| INT
|
Interior, Internal
|
| INTERM
|
Intermediate
|
| INTM
|
Intermediate
|
| INV
|
Invert
|
| IP
|
Iron Pipe
|
| IPS
|
Iron Pipe Size
|
| IW
|
Indirect Waste
|
| J
|
Joist
|
| J-BOX
|
Junction Box
|
| JAN
|
Janitor
|
| JB
|
Junction Box
|
| JC
|
Janitor's Closet
|
| JCT
|
Junction
|
| JF
|
Joint Filler
|
| JST
|
Joist
|
| JT
|
Joint
|
| K
|
Kilopound (1000 pounds), Kelvin (temperature)
|
| KAL
|
Kalamein
|
| KCP
|
Keene's Cement Plaster
|
| KG
|
Kilogram
|
| KIP
|
Kilopound (1000 pounds)
|
| KIT
|
Kitchen
|
| KM
|
Kilometer
|
| KO
|
Knockout
|
| KP
|
Kickplate
|
| KPL
|
Kickplate
|
| KS
|
Kitchen Sink
|
| KVA
|
Kilovolt-Ampere
|
| KW
|
Kilowatt
|
| KWH
|
Kilowatt Hour
|
| KWHR
|
Kilowatt Hour
|
| L
|
Angle, Left, Length, Lighting Panel, Long, Line
|
| LA
|
Landscape Architect, Lightning Arrester
|
| LAB
|
Laboratory, Labor
|
| LAD
|
Ladder
|
| LAM
|
Laminate, Laminated
|
| LAT
|
Lateral
|
| LAV
|
Lavatory
|
| LB
|
Pound (weight), Lag Bolt
|
| LBL
|
Label
|
| LBR
|
Lumber
|
| LC
|
Light Control, Lead Covered
|
| LCD
|
Liquid Crystal Diode
|
| LCL
|
Linen Closet
|
| LCM
|
Lead Coated Metal
|
| LD
|
Leader Drain
|
| LH
|
Left Hand
|
| LIB
|
Library
|
| LIBR
|
Library
|
| LIN
|
Linear
|
| LINO
|
Linoleum
|
| LIQ
|
Liquid
|
| LKR
|
Locker
|
| LL
|
Live Load
|
| LMS
|
Limestone
|
| LN
|
Length
|
| LNDG
|
Landing
|
| LNTL
|
Lintel
|
| LOC
|
Locate
|
| LOCS
|
Locations
|
| LP
|
Low Point, Low Pressure, Lighting Panel, Light Proof
|
| LPS
|
Low Pressure Sodium, Low Pressure Steam
|
| LR
|
Living Room
|
| LS
|
Limestone, Loud Speaker
|
| LT
|
Light, Low Tension Duct, Laundry Tray
|
| LT WT
|
Lightweight
|
| LTG
|
Lighting
|
| LTL
|
Lintel
|
| LV
|
Low Voltage
|
| LVR
|
Louver
|
| LW
|
Light Weight
|
| LWC
|
Light Weight Concrete
|
| LWDP
|
Louvered Wood Door, Painted
|
| M
|
Meter, Motor, Thousand (brick), Bending Moment
|
| MACH
|
Machine
|
| MAINT
|
Maintenance
|
| MAN; Manual
|
| MAR
|
Marble
|
| MARB
|
Marble
|
| MAS
|
Masonry
|
| MAT
|
Material
|
| MATL
|
Material
|
| MAX
|
Maximum
|
| MB
|
Mail Box, Machine Bolt, Mop Basin
|
| MC
|
Medicine Cabinet, Mineral Core
|
| MCC
|
Motor Control Center
|
| MCM
|
Thousand Circular Mils (electrical wire size)
|
| ME
|
Mechanical Engineer
|
| MECH
|
Mechanical
|
| MED
|
Medium
|
| MED CAB
|
Medicine Cabinet
|
| MEMB
|
Membrane
|
| MERC
|
Mercury Vapor
|
| MET
|
Metal
|
| MEZZ
|
Mezzanine
|
| MFD
|
Manufactured, Metal Floor Deck
|
| MFG
|
Manufacturer, Manufacturing
|
| MFR
|
Manufacture, Manufacturer
|
| MH
|
Manhole
|
| MI
|
Malleable Iron, Miles
|
| MIKE
|
Microphone
|
| MIN
|
Minimum
|
| MIR
|
Mirror
|
| MISC
|
Miscellaneous
|
| MK
|
Mark
|
| ML&P
|
Metal Lath & Plaster
|
| MLD
|
Molding
|
| MLDG
|
Molding
|
| MM
|
Millimeter
|
| MMB
|
Membrane
|
| MO
|
Masonry Opening
|
| MOD
|
Module
|
| MONO
|
Monolithic
|
| MOV
|
Movable
|
| MP
|
Metal Acoustal Panel
|
| MPS
|
Medium Pressure Steam
|
| MR
|
Mop Receptor
|
| MRD
|
Metal Roof Deck
|
| MT
|
Mount, Mounted
|
| MTD
|
Mounted
|
| MTL
|
Material, Metal
|
| MTR
|
Motor
|
| MUL
|
Mullion
|
| MULL
|
Mullion
|
| MV
|
Mercury Vapor
|
| MWK
|
Millwork
|
| MWP
|
Maximum Working Pressure
|
| N
|
North, Nitrogen
|
| NAP
|
Napkin
|
| NAT
|
Natural
|
| NATL
|
Natural
|
| NB
|
"Nota Bene" Latin phrase for "Take Special Note"
|
| NC
|
Normally Closed, Noise Criteria
|
| NEC
|
National Electrical Code
|
| NEUT
|
Neutral
|
| NF
|
Near Face
|
| NFWH
|
Non-freeze Wall Hydrant
|
| NI
|
Nickel
|
| NIC
|
Not In Contract
|
| NK
|
Neck
|
| NMT
|
Non-Metallic
|
| NO
|
Number, Normally Open
|
| NOM
|
Nominal
|
| NR
|
Noise Reduction
|
| NRC
|
Noise Reduction Coefficient
|
| NRP
|
Non-Removable Pin
|
| NRS
|
Non Rising Steam Valve
|
| NS
|
Near Side
|
| NTS
|
Not To Scale
|
| O
|
Oxygen
|
| O TO O
|
Out to Out
|
| OA
|
Outside Air, Overall
|
| OB
|
Obscure
|
| OBS
|
Obscure
|
| OC
|
On Center
|
| OD
|
Outside Diameter
|
| OF
|
Outside Face
|
| OFF
|
Office
|
| OH
|
Overhead
|
| OHD
|
Overhead Door
|
| OHMS
|
Oval Head Machine Screw
|
| OHWS
|
Oval Head Wood Screw
|
| OI
|
Ornamental Iron
|
| OP
|
Opaque
|
| OPG
|
Opening
|
| OPNG
|
Opening
|
| OPP
|
Opposite
|
| OPP H
|
Opposite Hand
|
| OR
|
Outside Radius
|
| ORN
|
Ornamental
|
| OS&Y
|
Outside Screw & Yoke (valve)
|
| OSD Open Sight Drain
|
| OUT
|
Outlet
|
| OVFL
|
Overflow
|
| OW
|
Open Waste
|
| OZ
|
Ounce
|
| P
|
Pitch, Power Panel, Paint
|
| P SL
|
Pipe Sleeve
|
| P. LAM
|
Plastic Laminate
|
| PA
|
Public Address
|
| PAF
|
Powder Actuated Fasteners
|
| PAR
|
Parallel
|
| PARTN
|
Partition
|
| PASS
|
Passage, Passenger
|
| PB
|
Pull Box, Push Button, Panic Bar
|
| PB STA
|
Push Button Station
|
| PBD
|
Particle Board
|
| PBMT
|
Preshimmed Butyl Mastic Sealant Tape
|
| PC
|
Pull Chain, Piece, Precast Concrete
|
| PCF
|
Pounds per cubic foot
|
| PCPL
|
Portland Cement Plaster
|
| PD
|
Pump Discharge, Plaza Drain
|
| PDP
|
Paneled Door, Painted
|
| PE
|
Porcelain Enamel, Professional Engineer
|
| PED
|
Pedestal, Pedestrian
|
| PERF
|
Perforate, Performance
|
| PERIM
|
Perimeter
|
| PERP
|
Perpendicular
|
| PFN
|
Prefinished
|
| PG
|
Pressure Gauge
|
| PH
|
Phase, Preheat, Phone
|
| PIV
|
Pivoted, Post Indicator Valve
|
| PJF
|
Preformed Joint Filler
|
| PKG
|
Parking
|
| PKWY
|
Parkway
|
| PL
|
Plate, Plan, Property Line, Plastic Laminate, Plastic
|
| PLAS
|
Plaster, Plastic
|
| PLAS LAM
|
Plastic Laminate
|
| PLBG
|
Plumbing
|
| PLF
|
Pounds Per Lineal Foot
|
| PLG
|
Plumbing
|
| PLMBG
|
Plumbing
|
| PLTF
|
Platform
|
| PLUMB
|
Plumbing
|
| PLWD
|
Plywood
|
| PLYWD
|
Plywood
|
| PNEU
|
Pneumatic
|
| PNL
|
Panel
|
| PNT
|
Paint
|
| POL
|
Polish, Polished
|
| PORC
|
Porcelain
|
| PORT
|
Portable
|
| POT W
|
Potable Water
|
| PP
|
Plaster, Painted, Power Panel, Precast Panel
|
| PR
|
Pair
|
| PRC
|
Precast
|
| PRCST
|
Precast
|
| PRE
|
Prefinished
|
| PREFAB
|
Prefabricated
|
| PRES
|
Pressure
|
| PRESS
|
Pressure
|
| PRF
|
Preformed
|
| PRFMD
|
Preformed
|
| PRI
|
Primary
|
| PRMLD
|
Premolded
|
| PROT
|
Protection, Protective
|
| PRSTR
|
Prestressed
|
| PRTN
|
Partition
|
| PRV
|
Pressure Reducing Valve
|
| PS
|
Plumbing Stack
|
| PSC
|
Prestressed Concrete
|
| PSF
|
Pounds per square foot
|
| PSI
|
Pounds per square inch
|
| PSIG
|
Pounds per square inch gage
|
| PT
|
Paint, Point, Part, Potential Transformer
|
| PTC
|
Post-Tensioned Concrete
|
| PTD
|
Painted, Paper Towel Dispenser
|
| PTD/R
|
Combination Paper Towel Dispenser/Receptacle
|
| PTN
|
Partition
|
| PTR
|
Paper Towel Receptacle
|
| PV
|
Paving
|
| PVC
|
Polyvinyl Chloride
|
| PVF
|
Polyvinylidene Finish
|
| PVG
|
Paving
|
| PVMT
|
Pavement
|
| PVT
|
Private
|
| PW
|
Pass Window
|
| PWR
|
Power
|
| QT
|
Quarry Tile, Quart
|
| QTR
|
Quarter
|
| QTY
|
Quantity
|
| QUAL
|
Quality
|
| QUANT
|
Quantity
|
| R
|
Riser, Radius, Resistance, Relay Panel
|
| R & S
|
Rod and Shelf
|
| RA
|
Return Air, Registered Architect
|
| RAD
|
Radius, Radiator
|
| RADN
|
Radian
|
| RB
|
Rubber, Rubber Base, Resilient Base
|
| RBC
|
Rubber Base (Coved),
|
| RBS
|
Rubber Base (Straight)
|
| RBT
|
Rabbet
|
| RCF
|
Raised Computer Floor
|
| RCP
|
Reflected Ceiling Plan, Reinforced Concrete Pipe
|
| RD
|
Roof Drain, Round, Receptacle Distribution Panel
|
| REBAR
|
Reinforcing Bar
|
| REC
|
Receiver
|
| RECEP
|
Receptacle
|
| RECP
|
Receptacle
|
| RED
|
Reducer
|
| REF
|
Refer, Reference, Refrigerator
|
| REFL
|
Reflected, Reflector
|
| REFR
|
Refrigerate, Refrigerator
|
| REG
|
Register, Regular
|
| REINF
|
Reinforcement, or Reinforce
|
| REM
|
Remove, Removable
|
| REQ
|
Require, Required
|
| REQD
|
Required
|
| RES
|
Resilient
|
| RESIL
|
Resilient
|
| REST
|
Resistance
|
| RET
|
Return, Retaining
|
| RETG
|
Retaining
|
| REV
|
Reverse, Revise, Revision
|
| REV DR
|
Revolving Door
|
| RF
|
Roof
|
| RFG
|
Roofing
|
| RGH
|
Rough
|
| RGH OPNG:Rough Opening
|
| RGTR
|
Register
|
| RH
|
Right Hand, Reheat, Relative Humidity
|
| RHC
|
Reheat Coil
|
| RHMS
|
Round Head Machine Screw
|
| RHR
|
Right Hand Reverse, Reheater
|
| RHWS
|
Round Head Wood Screw
|
| RM
|
Room
|
| RMS
|
Root Mean Squared
|
| RMV
|
Remove
|
| RN
|
Riser Nipple
|
| RO
|
Rough Opening
|
| ROB
|
Rod Out Basin
|
| ROW
|
Right of Way
|
| RPM
|
Revolutions Per Minute
|
| RPT
|
Repeat (like "Ditto")
|
| RR
|
Railroad
|
| RT
|
Rubber Tile, Right
|
| RTR/RR Rubber Tread/Rubber Riser
|
| RVS
|
Reverse Side
|
| RVT
|
Rivet
|
| RW
|
Redwood
|
| RWC
|
Rain Water Conductor
|
| RWD
|
Redwood
|
| RWL
|
Rain Water Leader
|
| Rubberized Bituminous Compound
|
| S
|
South, Sealant, Supply, Sink
|
| S&M
|
Surfaced & Matched
|
| S&S
|
Stained & Sealed
|
| S&V
|
Stain & Varnish
|
| S4S
|
Surfaced 4 Sides
|
| SACT
|
Suspended Acoustical Tile
|
| SALV
|
Salvage
|
| SAN
|
Sanitary
|
| SB
|
Setting Basin, Splash Block
|
| SC
|
Solid Core, Short Circuit, Self Closing, Sill Cock
|
| SCD
|
Seat Cover Dispenser
|
| SCFT
|
Structural Clay Facing Tile
|
| SCH
|
Schedule
|
| SCHED
|
Schedule
|
| SCR
|
Screen
|
| SCUP
|
Scupper
|
| SCWD
|
Solid Core Wood
|
| SD
|
Soap Dispenser
|
| SE
|
Structural Engineer
|
| SEAL
|
Sealant
|
| SEC
|
Second, Section, Secondary, Security System
|
| SECT
|
Section
|
| SECY
|
Secretary
|
| SED
|
Sewage Ejector Discharge
|
| SEL
|
Select
|
| SERV
|
Service
|
| SEV
|
Sewage Ejector Vent
|
| SF
|
Square Foot
|
| SFGL
|
Safety Glass
|
| SGG
|
Structural Glazing Gasket
|
| SGS
|
Silicone Glazing Sealant
|
| SH
|
Shelf, Sheet, Shower
|
| SHR
|
Shower
|
| SHT
|
Sheet
|
| SHTH
|
Sheathing
|
| SHTHG
|
Sheathing
|
| SHWR
|
Shower
|
| SIG
|
Signal
|
| SIM
|
Similar
|
| SJS
|
Silicone Joint Sealant
|
| SK
|
Sink
|
| SKL
|
Skylight
|
| SL
|
Siamese Line
|
| SLOT
|
Slotted
|
| SLV
|
Sleeve
|
| SND
|
Sanitary Napkin Dispenser
|
| SNGG
|
Sponge Neoprene Glazing Gasket
|
| SNR
|
Sanitary Napkin Receptacle
|
| SNT
|
Sealant
|
| SP
|
Soil Pipe, Standpipe, Soundproof, Single Pole
|
| SPC
|
Spacer
|
| SPD
|
Sump Pump Discharge
|
| SPDT
|
Single Pole Double Throw
|
| SPEC
|
Specification, Specifications
|
| SPECS
|
Specifications
|
| SPK
|
Speaker
|
| SPL
|
Special
|
| SPLR
|
Sprinkler
|
| SPM
|
Sprinkler Main
|
| SPP
|
Skim Coat Plaster Painted
|
| SPST
|
Single Pole Single Throw
|
| SQ
|
Square
|
| SS
|
Stainless Steel, Set Screw, Soil Stack, Service Sink, Slop Sink
|
| SSD
|
Sub-soil Drain
|
| SSGS
|
Silicone Structural Glazing Sealant
|
| SSK
|
Service Sink
|
| SSS
|
Silicone Sanitary Sealant
|
| SST
|
Stainless Steel
|
| ST
|
Straight, Storm Water
|
| ST W
|
Storm Water
|
| STA
|
Station
|
| STC
|
Sound Transmission Class
|
| STD
|
Standard
|
| STG
|
Storage, Seating
|
| STGG
|
Structural Glazing Gasket
|
| STGR
|
Stagger
|
| STIFF
|
Stiffener
|
| STK
|
Stack
|
| STL
|
Steel
|
| STM
|
Steam
|
| STO
|
Storage
|
| STOR
|
Storage
|
| STP
|
Standard Temperature & Pressure, Standpipe
|
| STR
|
Straight (re-bars), Strainer, Structural, Starter
|
| STRL
|
Structural
|
| STRT
|
Straight
|
| STRUC
|
Structural
|
| STRUCT
|
Structural
|
| STWY
|
Stairway
|
| SUCT
|
Suction
|
| SUPP
|
Supplementary, Supplement
|
| SUPT
|
Superintendent
|
| SUR
|
Surface
|
| SUSP
|
Suspended, Suspend
|
| SV
|
Safety Relief Valve
|
| SW
|
Switch
|
| SWBD
|
Switchboard
|
| SWGR
|
Switchgear
|
| SY
|
Square Yard
|
| SYM
|
Symmetrical
|
| SYN
|
Synthetic
|
| SYS
|
System
|
| T
|
Tread, Thermostat, Tee
|
| T&B
|
Top and Bottom
|
| T&G
|
Tongue & Groove
|
| T&P
|
Temperature & Pressure Relief Valve
|
| T/
|
Top
|
| TAN
|
Tangent
|
| TB
|
Towel Bar
|
| TC
|
Top of Curb, Terracotta
|
| TCLO
|
Telephone Closet
|
| TCS
|
Terne Coated Stainless Steel
|
| TD
|
Trench Drain
|
| TEL
|
Telephone
|
| TEL CL
|
Telephone Closet
|
| TEMP
|
Temporary, Tempered, Temperature
|
| TEN
|
Tenant
|
| TER
|
Terrazzo
|
| TERM
|
Terminal
|
| TERR
|
Terrazzo
|
| TGL
|
Toggle
|
| TH
|
Thermostat
|
| THK
|
Thick, Thickness
|
| THKNS
|
Thickness
|
| THR
|
Threshold
|
| THRESH
|
Threshold
|
| THRM
|
Thermal
|
| THRMST
|
Thermostat
|
| THRU
|
Through
|
| TKBD
|
Tackboard
|
| TL
|
Twist Lock (receptacle)
|
| TLT
|
Toilet
|
| TOL
|
Tolerance
|
| TP
|
Top of Pavement
|
| TPD
|
Toilet paper Dispenser
|
| TPH
|
Toilet Paper Holder
|
| TPTN
|
Toilet Partition
|
| TR
|
Tread, Transom
|
| TRANS
|
Transformer, Translucent
|
| TRAV
|
Travertine
|
| TRD
|
Tread
|
| TS
|
Time Switch
|
| TSL
|
Top of Slab
|
| TST
|
Top of Steel
|
| TSTAT
|
Thermostat
|
| TT
|
Terrazzo Tile, Traffic Topping
|
| TTC
|
Telephone Terminal Closet
|
| TV
|
Television
|
| TW
|
Top of Wall, Thin Wall (conduit), Tempered Water
|
| TYP
|
Typical
|
| TZ
|
Terrazzo
|
| UC
|
Undercut
|
| UH
|
Unit Heater
|
| UL
|
Underwriters' Laboratories
|
| UNEX
|
Unexcavated
|
| UNEXC
|
Unexcavated
|
| UNF
|
Unfinished
|
| UNFIN
|
Unfinished
|
| UNO
|
Unless Noted Otherwise
|
| UON
|
Unless Otherwise Noted
|
| UP
|
Unpainted
|
| UR
|
Urinal
|
| USG
|
United States Gauge, United States Gypsum Company
|
| USS
|
United States Standard
|
| UT
|
Utility
|
| V
|
Volt, Valve, Vinyl, Vent, Ventilator
|
| VA
|
Volt Ampere
|
| VAC
|
Vacuum
|
| VACBR
|
Vacuum Breaker
|
| VAR
|
Varnish, Varies
|
| VAT
|
Vinyl Asbestos Tile
|
| VB
|
Vapor Barrier, Valve Box, Vinyl Base, Vacuum Breaker
|
| VBC
|
Vinyl Base (Coved)
|
| VBS
|
Vinyl Base (Straight)
|
| VC
|
Varnished Cambric
|
| VCP
|
Vitrified Clay Pipe
|
| VCT
|
Vinyl Composition Tile
|
| VENT
|
Ventilate, Ventilator
|
| VERT
|
Vertical
|
| VEST
|
Vestibule
|
| VF
|
Vinyl Fabric
|
| VFGT
|
Vinyl Foam Glazing Tape
|
| VIF
|
Verify In the Field
|
| VIN
|
Vinyl
|
| VIT
|
Vitreous
|
| VLT
|
Vault
|
| VNR
|
Veneer
|
| VOL
|
Volume
|
| VP
|
Vapor Proof, Vent Pipe
|
| VR
|
Vapor Retarder, Vacuum Return, Vertical Riser
|
| VRM
|
Vermiculite
|
| VS
|
Vent Stack
|
| VT
|
Vinyl Tile
|
| VTR
|
Vent Through Roof
|
| VWC
|
Vinyl Wall Covering
|
| W
|
West, Width, Wide, Watt, Waste, Water, Water Main
|
| W&M
|
Washburn & Moen Gauge
|
| W/
|
With
|
| W/O
|
Without
|
| WAINS
|
Wainscot
|
| WB
|
Wood Base
|
| WC
|
Watercloset
|
| WD
|
Wood
|
| WDP
|
Wood, Painted
|
| WDSS
|
Wood, Stained & Sealed
|
| WDW
|
Window
|
| WF
|
Wide Flange (structural steel)
|
| WFS
|
Water Flow Switch
|
| WG
|
Wired Glass
|
| WGL
|
Wire-Glass
|
| WH
|
Water Heater, Wall Hung, Wall Hydrant
|
| WI
|
Wrought Iron
|
| WIN
|
Window
|
| WM
|
Wire Mesh, Water Meter
|
| WP
|
Waterproof, Working Point, Working Pressure, Weatherproof
|
| WPR
|
Waterproofing
|
| WPT
|
Working Point
|
| WR
|
Water Resistant, Water Repellant, Waste Receptacle
|
| WRSTP
|
Weatherstripping
|
| WS
|
Weatherstripping, Water Stop
|
| WSCT
|
Wainscot
|
| WT
|
Weight, Water Table, Watertight
|
| WVNR
|
Wood Veneer
|
| WW
|
Window Wall
|
| WWF
|
Welded Wire Fabric
|
| X HVY
|
Extra Heavy
|
| X STR
|
Extra Strong
|
| XH
|
Extra Heavy
|
| YD
|
Yard
|
| YR
|
Year
|