| Acronym |
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 & 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)
|
| B |
Boiler, Bathroom, Bidet
|
| 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 TO C |
Center to Center
|
| C.I. |
Cast Iron
|
| C.O. |
Cased Opening
|
| C/C |
Center to Center
|
| C |
Courses, Curb, Channel, Degrees Celsius, Clock Outlet, Calcimine
|
| CA |
Compressed Air
|
| CAB |
Cabinet
|
| CAD |
Cadmium, Computer-Aided Drafting
|
| CAIS |
Caisson
|
| CAP |
Capacity
|
| CAR |
Carpet
|
| CARP |
Carpenter
|
| Cast Brass, Coal Bin |
|
| 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 AB |
Cement Asbestos Board
|
| Cem P |
Cement Water Paint
|
| CEM |
Cement
|
| 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 OPG |
Clear Opening
|
| CLR |
Clear
|
| 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 & DP |
Cleanout & Deck Plate
|
| CO |
Company, Cleanout, Cased Opening, Cut Out
|
| 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
|
| Cone Tip (hinges) |
|
| 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. FT. |
Cubic Feet
|
| CU. YD. |
Cubic Yard
|
| CU |
Copper, Cubic, Coefficient of Utilization
|
| 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 L |
Cylinder Lock
|
| CYL |
Cylinder
|
| D & M |
Dressed & Matched
|
| D |
Deep, Depth, Drop, Drain
|
| 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 TO E |
End to End
|
| E |
East, Enamel, Exhaust
|
| 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 & C |
Electric Wiring and Communication
|
| EW |
Each Way
|
| EWC |
Electric Water Cooler
|
| EWH |
Electric Water Heater
|
| EX |
Exposed Construction, Exit
|
| EXC |
Excavate
|
| EXCAV |
Excavate
|
| EXEC |
Executive
|
| EXG |
Existing
|
| EXH AIR |
Exhaust Air
|
| EXH |
Exhaust
|
| EXIST |
Existing
|
| EXP |
Expansion, Exposed
|
| EXPN |
Expansion
|
| EXPP |
Existing Patched and Painted
|
| EXS |
Extra Strong
|
| EXT |
Exterior, Extinguish
|
| EXTR |
Extrude
|
| F TO F |
Face to Face
|
| F |
Degrees Fahrenheit, Fuse
|
| 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&E |
Fixtures, Furnishings & Equipment
|
| FF |
Far Face, Finished Floor, Factory Finish
|
| 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 BLK |
Glass Block
|
| GL |
Glass
|
| 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 BD |
Gypsum Board
|
| GYP |
Gypsum
|
| 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
|
| JAN |
Janitor
|
| JB |
Junction Box
|
| J-BOX |
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 WT |
Lightweight
|
| LT |
Light, Low Tension Duct, Laundry Tray
|
| 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 CAB |
Medicine Cabinet
|
| MED |
Medium
|
| 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 TO O |
Out to Out
|
| O |
Oxygen
|
| 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 H |
Opposite Hand
|
| OPP |
Opposite
|
| 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 SL |
Pipe Sleeve
|
| P. LAM |
Plastic Laminate
|
| P |
Pitch, Power Panel, Paint
|
| PA |
Public Address
|
| PAF |
Powder Actuated Fasteners
|
| PAR |
Parallel
|
| PARTN |
Partition
|
| PASS |
Passage, Passenger
|
| PB STA |
Push Button Station
|
| PB |
Pull Box, Push Button, Panic Bar
|
| 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 LAM |
Plastic Laminate
|
| PLAS |
Plaster, Plastic
|
| 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/R |
Combination Paper Towel Dispenser/Receptacle
|
| PTD |
Painted, Paper Towel Dispenser
|
| 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 & S |
Rod and Shelf
|
| R |
Riser, Radius, Resistance, Relay Panel
|
| 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 DR |
Revolving Door
|
| REV |
Reverse, Revise, Revision
|
| RF |
Roof
|
| RFG |
Roofing
|
| RGH OPNG:Rough Opening |
|
| RGH |
Rough
|
| 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 |
|
| Rubberized Bituminous Compound |
|
| RVS |
Reverse Side
|
| RVT |
Rivet
|
| RW |
Redwood
|
| RWC |
Rain Water Conductor
|
| RWD |
Redwood
|
| RWL |
Rain Water Leader
|
| S&M |
Surfaced & Matched
|
| S&S |
Stained & Sealed
|
| S&V |
Stain & Varnish
|
| S |
South, Sealant, Supply, Sink
|
| 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 W |
Storm Water
|
| ST |
Straight, 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&B |
Top and Bottom
|
| T&G |
Tongue & Groove
|
| T&P |
Temperature & Pressure Relief Valve
|
| T/ |
Top
|
| T |
Tread, Thermostat, Tee
|
| TAN |
Tangent
|
| TB |
Towel Bar
|
| TC |
Top of Curb, Terracotta
|
| TCLO |
Telephone Closet
|
| TCS |
Terne Coated Stainless Steel
|
| TD |
Trench Drain
|
| TEL CL |
Telephone Closet
|
| TEL |
Telephone
|
| 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&M |
Washburn & Moen Gauge
|
| W/ |
With
|
| W/O |
Without
|
| W |
West, Width, Wide, Watt, Waste, Water, Water Main
|
| 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
|
