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- A|Ampere|
- A|Area Square Feet|
- ABS|Acrylonitrile Butadiene Stryrene|
- ABS|Asbestos Bonded Steel|
- A.C.|Air-Conditioning|
- A.C.|Alternating Current|
- A.C.|Asbestos Cement|
- A.C.|Plywood Grade A & C|
- A.C.I.|American Concrete Institute|
- A.C.T.|Acoustical Ceiling Tile|
- AD|Plywood, Grade A & D|
- ADA|Americans with Disabilities Act|
- ADAAG|Americans with Disabilities Act Accessibility Guidlines|
- Add.|Additional|
- Addit.|Additional|
- Adj.|Adjustable|
- af|Audio-frequency|
- a.f.f.|Above Finished Floor|
- A.G.A.|American Gas Association|
- Agg.|Aggregate|
- A.H.|Ampere Hours|
- A hr.|Ampere-hour|
- A.H.U.|Air Handling Unit|
- A.I.A.|American Institute of Architects|
- AIC|Ampere Interrupting Capacity|
- Allow.|Allowance|
- alt.|Altitude|
- Alum.|Aluminum|
- a.m.|Ante Meridiem|
- Amp.|Ampere, Amplifier|
- Anod.|Anodized|
- Approx.|Approximate|
- Apt.|Apartment|
- Asb.|Asbestos|
- A.S.B.C.|American Standard Building Code|
- Asbe.|Asbestos Worker|
- A.S.H.R.A.E.|American Society of Heating, Refrig.|
- A.S.M.E.|American Society of Mechanical Engineers|
- A.S.T.M.|American Society for Testing and Material|
- Attchmt.|Attachment|
- Avg.|Average|
- A.W.G.|American Wire Gauge|
- A.W.W.A.|American Water Works Association|
- B. & B.|Balled & Burlapped|
- B. & B.|Grade B and Better|
- Bbl.|Barrel|
- b.c.c.|Body-centered Cubic|
- B.C.Y.|Bank Cubic Yards|
- BE|Bevel End|
- B.F.|Board Feet|
- Bg. cem.|Bag of Cement|
- BHP|Boiler Horsepower|
- BHP|Brake Horsepower|
- B.I.|Black Iron|
- Bit.|Bituminous|
- Bitum.|Bituminous|
- Bk.|Backed|
- Bkrs.|Breakers|
- Bldg.|Building|
- Blk.|Block|
- Bm.|Beam|
- Boil.|Boilermaker|
- B.P.M.|Blows per Minute|
- BR|Bedroom|
- Brg.|Bearing|
- Brhe.|Bricklayer Helper|
- Bric.|Bricklayer|
- Brk.|Brick|
- Brng.|Bearing|
- Brs.|Brass|
- Brz.|Bronze|
- B. & S.|Bell and Spigot|
- Bsn.|Basin|
- Btr.|Better|
- BTU|British Thermal Unit|
- BTUH|BTU per Hour|
- B. & W.|Black and White|
- BX|Interlocked Armored Cable|
- c|Conductivity|
- C|Centigrade|
- C|Hundred|
- Cab.|Cabinet|
- Cair.|Air Tool Laborer|
- Calc|Calculated|
- Cap.|Capacity|
- Carp.|Carpenter|
- C.B.|Circuit Breaker|
- C/C|Center to Center|
- C.C.A.|Chromate Copper Arsenate|
- C.C.F.|Hundred Cubic Feet|
- cd|Candela|
- CD|Grade of Plywood Face & Back|
- cd/sf|Candela per Square Foot|
- CDX|Plywood, Grade C & D, exterior glue|
- Cefi.|Cement Finisher|
- Cem.|Cement|
- CF|Hundred Feet|
- C.F.|Cubic Feet|
- CFM|Cubic Feet per Minute|
- c.g.|Center of Gravity|
- CHW|Chilled Water|
- CHW|Commercial Hot Water|
- C.I.|Cast Iron|
- C.I.P.|Cast in Place|
- Circ.|Circuit|
- C.L.|Carload Lot|
- Clab.|Common Laborer|
- CLF|Current Limiting Fuse|
- C.L.F.|Hundred Linear Feet|
- CLP|Cross Linked Polyethylene|
- cm|Centimeter|
- CMP|Corr. Metal Pipe|
- C.M.U.|Concrete Masonry Unit|
- C.O.|Clear Opening|
- CO2|Carbon Dioxide|
- Col.|Column|
- Comb.|Combination|
- Compr.|Compressor|
- Conc.|Concrete|
- Cont.|Continued|
- Cont.|Continuous|
- Corr.|Corrugated|
- Cos|Cosine|
- Cot|Cotangent|
- Cov.|Cover|
- CPA|Control Point Adjustment|
- Cplg.|Coupling|
- C.P.M.|Critical Path Method|
- C.Pr.|Hundred Pair|
- CPVC|Chlorinated Polyvinyl Chloride|
- CRC|Cold Rolled Channel|
- Creos.|Creosote|
- Crpt.|Carpet & Linoleum Layer|
- CRT|Cathode-ray Tube|
- CS|Carbon Steel|
- Csc|Cosecant|
- C.S.F.|Hundred Square Feet|
- CSI|Construction Specifications Institute|
- C.T.|Current Transformer|
- CTS|Copper Tube Size|
- Cu|Cubic|
- Cu. Ft.|Cubic Foot|
- cw|Continuous Wave|
- C.W.|Cold Water|
- C.W.|Cool White|
- Cwt.|100 Pounds|
- C.W.X.|Cool White Deluxe|
- C.Y.|Cubic Yard (27 cubic feet)|
- C.Y./Hr.|Cubic Yard per Hour|
- Cyl.|Cylinder|
- d|Penny (nail size)|
- D|Deep|
- D|Depth|
- D|Discharge|
- Db.|Decibel|
- dbl.|Double|
- Dbl.|Double|
- DC|Direct Current|
- Demob.|Demobilization|
- d.f.u.|Drainage Fixture Units|
- D.H.|Double Hung|
- DHW|Domestic Hot Water|
- Dia.|Diameter|
- Diag.|Diagonal|
- Diam.|Diameter|
- Dis.|Discharge|
- Disch.|Discharge|
- Distrib.|Distribution|
- Dk.|Deck|
- D.L.|Dead Load|
- D.L.|Diesel|
- Do.|Ditto|
- Dp.|Depth|
- D.P.S.T.|Double Pole, Single Throw|
- Dr.|Driver|
- Drink.|Drinking|
- D.S.|Double Strength|
- D.S.A.|Double Strength A Grade|
- D.S.B.|Double Strength B Grade|
- Dty.|Duty|
- DWV|Drain Waste Vent|
- DX|Deluxe White, Direct Expansion|
- dyn|Dyne|
- e|Eccentricity|
- E|East|
- E|Equipment Only|
- Ea.|Each|
- E.B.|Encased Burial|
- Econ.|Economy|
- EDP|Electronic Data Processing|
- E.D.R.|Equiv. Direct Radiation|
- EIFS|Exterior Insulation Finish System|
- Elec.|Electrical|
- Elec.|Electrician|
- Elev.|Elevating|
- Elev.|Elevator|
- EMT|Electrical Metallic Conduit|
- EMT|Thin Wall Conduit|
- Eng.|Engine|
- EPDM|Ethylene Propylene Diene Monomer|
- EPS|Expanded Polystyrene|
- Eq.|Equation|
- Eqhv.|Equip. Oper., Heavy|
- Eqlt.|Equip. Oper., Light|
- Eqmd.|Equip. Oper., Medium|
- Eqmm.|Equip. Oper., Master Mechanic|
- Eqol.|Equip. Oper., Oilers|
- Equip.|Equipment|
- ERW|Electric Resistance Welded|
- Est.|Estimated|
- esu|Electrostatic Units|
- E.W.|Each Way|
- EWT|Entering Water Temperature|
- Excav.|Excavation|
- Exp.|Expansion, Exposure|
- Ext.|Exterior|
- Extru.|Extrusion|
- F|Fahrenheit|
- F|Female|
- F|Fill|
- f.|Fiber stress|
- Fab.|Fabricated|
- FBGS|Fiberglass|
- F.C.|Footcandles|
- f`c.|Compressive Stress in Concrete|
- f`c.|Extreme Compressive Stress|
- f.c.c.|Face-centered Cubic|
- F.E.|Front End|
- FEP|Fluorinated Ethylene Propylene (Teflon)|
- F.F.E.|Furniture, Fixtures, & Equipment|
- F.G.|Flat Grain|
- F.H.A.|Federal Housing Administration|
- Fig.|Figure|
- Fin.|Finished|
- Fixt.|Fixture|
- Fl. Oz.|Fluid Ounces|
- Flr.|Floor|
- F.M.|Factory Mutual|
- F.M.|Frequency Modulation|
- Fmg.|Framing|
- Fndtn.|Foundation|
- Fori.|Foreman, Inside|
- Foro.|Foreman, Outside|
- Fount.|Fountain|
- fpm|Feet per Minute|
- FPM|Feet per Minute|
- FPT|Female Pipe Thread|
- Fr.|Frame|
- F.R.|Fire Rating|
- FRK|Foil Reinforced Kraft|
- FRP|Fiberglass Reinforced Plastic|
- FS|Forged Steel|
- FSC|Cast Body|
- FSC|Cast Switch Box|
- Ft.|Feet|
- Ft.|Foot|
- Ftg.|Footing|
- Ft. Lb.|Foot Pound|
- Ftng.|Fitting|
- Furn.|Furniture|
- FVNR|Full Voltage Non-Reversing|
- FXM|Female by Male|
- Fy.|Minimum Yield Stress of Steel|
- g|Gram|
- G|Gauss|
- Ga.|Gauge|
- Gal.|Gallon|
- Gal./Min.|Gallon per Minute|
- Galv.|Galvanized|
- Gen.|General|
- G.F.I.|Ground Fault Interrupter|
- Glaz.|Glazier|
- GPD|Gallons per Day|
- GPH|Gallons per Hour|
- GPM|Gallons per Minute|
- GR|Grade|
- Gran.|Granular|
- Grnd.|Ground|
- Gyp.|Gypsum|
- H|Henry|
- H|High|
- H|High Strength Bar Joist|
- H.C.|High Capacity|
- H.D.|Heavy Duty|
- H.D.|High Density|
- H.D.O.|High Density Overlaid|
- Hdr.|Header|
- Hdwe.|Hardware|
- Help.|Helpers Average|
- HEPA|High Efficiency Particulate Air Filter|
- Hg|Mercury|
- HIC|High Interrupting Capacity|
- H.O.|High Output|
- Horiz.|Horizontal|
- HP|Handicapped Person|
- H.P.|High Pressure|
- H.P.|Horsepower|
- H.P.F.|High Power Factor|
- Hr.|Hour|
- Hrs./Day|Hours per Day|
- HSC|High Short Circuit|
- Ht.|Height|
- Htg.|Heating|
- Htrs.|Heaters|
- HVAC|Heating, Ventilation & Air-Conditioning|
- Hvy.|Heavy|
- HW|Hot Water|
- Hyd.|Hydraulic|
- Hydr.|Hydraulic|
- Hz.|Hertz (cycles)|
- I.|Moment of Inertia|
- I.C.|Interrupting Capacity|
- ID|Inside Diameter|
- I.D.|Identification|
- I.D.|Inside Dimension|
- I.F.|Inside Frosted|
- I.M.C.|Intermediate Metal Conduit|
- In.|Inch|
- Incan.|Incandescent|
- Incl.|Included|
- Incl.|Including|
- Inst.|Installation|
- Insul.|Insulation|
- Int.|Interior|
- I.P.|Iron Pipe|
- I.P.S.|Iron Pipe Size|
- I.P.T.|Iron Pipe Threaded|
- I.W.|Indirect Waste|
- J|Joule|
- J.I.C.|Joint Industrial Council|
- K|Heavy Wall Copper Tubing|
- K|Thousand|
- K|Thousand Pounds|
- K.A.H.|Thousand Amp. Hours|
- KCMIL|Thousand Circular Mils|
- KD|Knock Down|
- K.D.A.T.|Kiln Dried After Treatment|
- kg|Kilogram|
- kG|Kilogauss|
- kgf|Kilogram Force|
- kHz|Kilohertz|
- Kip.|1000 Pounds|
- KJ|Kiljoule|
- K.L.|Effective Length Factor|
- K.L.F.|Kips per Linear Foot|
- Km|Kilometer|
- K.S.F.|Kips per Square Foot|
- K.S.I.|Kips per Square Inch|
- K.V.|Kilovolt|
- K.V.A.|Kilovolt Ampere|
- K.V.A.R.|Kilovar (Reactance)|
- KW|Kilowatt|
- KWh|Kilowatt-hour|
- L|Labor Only|
- L|Length|
- L|Liters|
- L|Long|
- L|Medium Wall Copper Tubing|
- Lab.|Labor|
- lat|Latitude|
- Lath.|Lather|
- Lav.|Lavatory|
- lb.|Pound, pounds|
- L.B.|L Conduit Body|
- L.B.|Load Bearing|
- lbf/sq.in.|Pound-force per Square Inch|
- lb./hr.|Pounds per Hour|
- lb./L.F.|Pounds per Linear Foot|
- lbs.|Pound, pounds|
- L.C.L.|Less than Carload Lot|
- Ld.|Load|
- LE|Lead Equivalent|
- L. & E.|Labor & Equipment|
- L.F.|Linear Foot|
- Lg.|Large|
- Lg.|Length|
- Lg.|Long|
- L & H|Light and Heat|
- L.H.|Long Span High Strength Bar Joist|
- L.J.|Long Span Standard Strength Bar Joist|
- L.L.|Live Load|
- L.L.D.|Lamp Lumen Depreciation|
- lm|Lumen|
- lm/sf|Lumen per Square Foot|
- lm/W|Lumen per Watt|
- L.O.A.|Length Over All|
- log|Logarithm|
- L.P.|Liquefied Petroleum|
- L.P.|Low Pressure|
- L.P.F.|Low Power Factor|
- LR|Long Radius|
- L.S.|Lump Sum|
- Lt.|Light|
- Lt. Ga.|Light Gauge|
- L.T.L.|Less than Truckload Lot|
- Lt. Wt.|Lightweight|
- L.V.|Low Voltage|
- m|Meters|
- M|Light Wall Copper Tubing|
- M|Male|
- M|Material|
- M|Thousand|
- mA|Milliampere|
- Mach.|Machine|
- Mag. Str.|Magnetic Starter|
- Maint.|Maintenance|
- Marb.|Marble Setter|
- Mat|Material|
- Mat'l.|Material|
- Max.|Maximum|
- MBF|Thousand Board Feet|
- MBH|Thousand BTU's per hr.|
- MC|Metal Clad Cable|
- M.C.F.|Thousand Cubic Feet|
- M.C.F.M.|Thousand Cubic Feet per Minute|
- M.C.M.|Thousand Circular Mils|
- M.C.P.|Motor Circuit Protector|
- MD|Medium Duty|
- M.D.O.|Medium Density Overlaid|
- Med.|Medium|
- met.|Metric|
- MF|Thousand Feet|
- M.F.B.M.|Thousand Feet Board Measure|
- Mfg.|Manufacturing|
- Mfrs.|Manufacturers|
- mg|Milligram|
- MGD|Million Gallons per Day|
- MGPH|Thousand Gallons per Hour|
- MH|Manhole|
- MH|Man-hour|
- MH|Metal Halide|
- M.H.|Manhole|
- M.H.|Man-hour|
- M.H.|Metal Halide|
- m/hr|Man-hour|
- MHz|Megahertz|
- MI|Malleable Iron|
- MI|Mineral Insulated|
- Mi.|Mile|
- Mill.|Millwright|
- min.|minimum|
- min.|minute|
- Min.|Minimum|
- Min.|Minute|
- Misc.|Miscellaneous|
- ml|Milliliter|
- M.L.F.|Thousand Linear Feet|
- mm|Millimeter|
- MN|Non-Metallic Cable|
- Mo.|Month|
- Mobil.|Mobilization|
- Mog.|Mogul Base|
- MPH|Miles per Hour|
- MPT|Male Pipe Thread|
- MRT|Mile Round Trip|
- ms|Millisecond|
- M.S.F.|Thousand Square Feet|
- Mstz.|Mosaic & Terrazzo Worker|
- M.S.Y.|Thousand Square Yards|
- Mtd.|Mounted|
- Mthe.|Mosaic & Terrazzo Helper|
- Mtng.|Mounting|
- Mult.|Multi|
- Mult.|Multiply|
- MV|Megavolt|
- M.V.A.|Million Volt Amperes|
- M.V.A.R.|Million Volt Amperes Reactance|
- MW|Megawatt|
- MXM|Male by Male|
- MYD|Thousand Yards|
- N|Natural|
- N|North|
- nA|Nanoampere|
- NA|Not Applicable|
- NA|Not Available|
- N.B.C.|National Building Code|
- NC|Normally Closed|
- NEHB|Bolted Circuit Breaker to 600V.|
- N.E.M.A.|National Electrical Manufacturers Assoc.|
- N.L.B.|Non-Load-Bearing|
- nm|Nanometer|
- NO|Normally Open|
- No.|Number|
- N.O.C.|Not Otherwise Classified|
- Nose.|Nosing|
- N.P.T.|National Pipe Thread|
- NQOD|Combination Plug-on/Bolt on Circuit Breaker to 240 V|
- N.R.C.|Noise Reduction Coefficient|
- N.R.S.|Non Rising Stem|
- ns|Nanosecond|
- nW|Nanowatt|
- OB|Opposing Blade|
- OC|On Center|
- OD|Outside Diameter|
- O.D.|Outside Dimension|
- ODS|Overhead Distribution System|
- O & P|Overhead and Profit|
- Oper.|Operator|
- Opng.|Opening|
- Orna.|Ornamental|
- OSB|Oriented Strand Board|
- O. S. & Y.|Outside Screw and Yoke|
- Ovhd.|Overhead|
- OWG|Oil, Water or Gas|
- Oz.|Ounce|
- p.|Page|
- P.|Applied Load|
- P.|Pole|
- P.|Projection|
- Pape.|Paperhanger|
- P.A.P.R.|Powered Air Purifying Respirator|
- PAR|Weatherproof Reflector|
- Part.|Partition|
- Pc.|Piece|
- P.C.|Portland Cement|
- P.C.|Power Connector|
- P.C.F.|Pounds per Cubic Foot|
- P.C.M.|Phase Contract Microscopy|
- P.E.|End|
- P.E.|Plain|
- P.E.|Polyethylene|
- P.E.|Porcelain Enamel|
- P.E.|Professional Engineer|
- Perf.|Perforated|
- Ph.|Phase|
- P.I.|Pressure Injected|
- Pile.|Pile Driver|
- Pkg.|Package|
- Pl.|Plate|
- Plah.|Plasterer Helper|
- Plas.|Plasterer|
- Pluh.|Plumbers Helper|
- Plum.|Plumber|
- Ply.|Plywood|
- p.m.|Post Meridiem|
- Pord.|Painter, Ordinary|
- pp|Pages|
- PP|Polypropylene|
- PPL|Polypropylene|
- P.P.M.|Parts per Million|
- Pr.|Pair|
- Prefab.|Prefabricated|
- Prefin.|Prefinished|
- Prop.|Propelled|
- psf|Pounds per Square Foot|
- PSF|Pounds per Square Foot|
- psi|Pounds per Square Inch|
- PSI|Pounds per Square Inch|
- PSIG|Pounds per Square Inch Gauge|
- PSP|Plastic Sewer Pipe|
- Pspr.|Painter, Spray|
- Psst.|Painter, Structural Steel|
- P. & T.|Pressure & Temperature|
- P.T.|Potential Transformer|
- Ptd.|Painted|
- Ptns.|Partitions|
- Pu|Ultimate Load|
- PVC|Polyvinyl Chloride|
- Pvmt.|Pavement|
- Pwr.|Power|
- Q|Quantity Heat Flow|
- Q.C.|Quick Coupling|
- Qty.|Quantity|
- Quan.|Quantity|
- r|Radius of Gyration|
- R|Resistance|
- R.C.P.|Reinforced Concrete Pipe|
- Reconn.|Reconnect|
- Rect.|Rectangle|
- Reg.|Regular|
- Reinf.|Reinforced|
- Rem.|Remove|
- Repl.|Replace|
- Req'd.|Required|
- Res.|Resistant|
- Resi.|Residential|
- Rgh.|Rough|
- R.H.W.|Residential Hot Water|
- R.H.W.|Rubber, Heat & Water Resistant|
- rms|Root Mean Square|
- Rnd.|Round|
- Rodm.|Rodman|
- Rofc.|Roofer, Composition|
- Rofp.|Roofer, Precast|
- Rohe.|Roofer Helpers (Composition)|
- Rots.|Roofer, Tile & Slate|
- R.O.W.|Right of Way|
- RPM|Revolutions per Minute|
- R.R.|Direct Burial Feeder Conduit|
- R.S.|Rapid Start|
- Rsr|Riser|
- RT|Round Trip|
- S.|Single Entrance|
- S.|South|
- S.|Suction|
- S4S|Surface 4 Sides|
- Scaf.|Scaffold|
- Sch.|Schedule|
- Sched.|Schedule|
- S.C.R.|Modular Brick|
- S.D.|Sound Deadening|
- S.D.R.|Standard Dimension Ratio|
- S.E.|Surfaced Edge|
- Sel.|Select|
- S.E.R.|Service Entrance Cable|
- S.E.U.|Service Entrance Cable|
- S.F.|Square Foot|
- S.F.C.A.|Square Foot Contact Area|
- S.F.G.|Square Foot of Ground|
- S.F. Hor.|Square Foot Horizontal|
- S.F.R.|Square Feet of Radiation|
- S.F. Shlf.|Square Foot of Shelf|
- Shee.|Sheet Metal Worker|
- Sin.|Sine|
- Skwk.|Skilled Worker|
- SL|Saran Lined|
- S.L.|Slimline|
- Sldr.|Solder|
- S.N.|Solid Neutral|
- S.P.|Self-Propelled|
- S.P.|Single Pole|
- S.P.|Static Pressure|
- S.P.D.T.|Single Pole, Double Throw|
- SPF|Spruce Pine Fir|
- Spri.|Sprinkler Installer|
- S.P.S.T.|Single Pole, Single Throw|
- SPT|Standard Pipe Thread|
- Sq.|100 Square Feet|
- Sq.|Square|
- Sq. Hd.|Square Head|
- Sq. In.|Square Inch|
- S.S.|Single Strength|
- S.S.|Stainless Steel|
- S.S.B.|Single Strength B Grade|
- Sswk.|Structural Steel Worker|
- Sswl.|Structural Steel Welder|
- St.|Steel|
- S.T.C.|Sound Transmission Coefficient|
- Std.|Standard|
- Stl.|Steel|
- STP|Standard Temperature & Pressure|
- Stpi.|Steamfitter, Pipefitter|
- Str.|Starter|
- Str.|Straight|
- Str.|Strength|
- Strd.|Stranded|
- Struct.|Structural|
- Sty.|Story|
- Subj.|Subject|
- Subs.|Subcontractors|
- Surf.|Surface|
- Sw.|Switch|
- Swbd.|Switchboard|
- S.Y.|Square Yard|
- Syn.|Synthetic|
- S.Y.P.|Southern Yellow Pine|
- Sys.|System|
- T|Temperature|
- T|Ton|
- t.|Thickness|
- Tan|Tangent|
- T & C|Threaded and Coupled|
- T.C.|Terra Cotta|
- T.D.|Temperature Difference|
- TDD|Telecommunications Display Device|
- T.E.M.|Transmission Electron Microscopy|
- TFE|Tetrafluoroethylene (Teflon)|
- T. & G.|Tar & Gravel|
- T. & G.|Tongue & Groove|
- Th.|Thick|
- THHN|Nylon Jacketed Wire|
- Thk.|Thick|
- Thn.|Thin|
- Thrded|Threaded|
- THW.|Insulated Strand Wire|
- THWN|Nylon Jacketed Wire|
- Tilf.|Tile Layer, Floor|
- Tilh.|Tile Layer, Helper|
- T.L.|Truckload|
- Tot.|Total|
- Tr.|Trade|
- Transf.|Transformer|
- Trhv.|Truck Driver, Heavy|
- Trlr|Trailer|
- Trlt.|Truck Driver, Light|
- T.S.|Trigger Start|
- TTY|Telecommunications Display Device|
- TV|Television|
- T.W.|Thermoplastic Water Resistant Wire|
- Typ.|Typical|
- UCI|Uniform Construction Index|
- UF|Underground Feeder|
- U.H.F.|Ultra High Frequency|
- U.L.|Underwriters Laboratory|
- Unfin.|Unfinished|
- URD|Underground Residential Distribution|
- V|Volt|
- V.A.|Volt Amperes|
- VAV|Variable Air Volume|
- VC|Veneer Core|
- V.C.T.|Vinyl Composition Tile|
- Vent.|Ventilation|
- Vert.|Vertical|
- V.F.|Vinyl Faced|
- V.G.|Vertical Grain|
- V.H.F.|Very High Frequency|
- VHO|Very High Output|
- Vib.|Vibrating|
- V.L.F.|Vertical Linear Foot|
- Vol.|Volume|
- W|Watt|
- W|West|
- W|Wide|
- W|Wire|
- w/|With|
- W.C.|Water Closet|
- W.C.|Water Column|
- W.F.|Wide Flange|
- W.G.|Water Gauge|
- Wldg.|Welding|
- W. Mile|Wire Mile|
- W.R.|Water Resistant|
- Wrck.|Wrecker|
- W.S.P.|Water, Steam, Petroleum|
- Wt.|Weight|
- WT.|Weight|
- WWF|Welded Wire Fabric|
- XFMR|Transformer|
- XHD|Extra Heavy Duty|
- XHHW|Cross-Linked Polyethylene Wire Insulation|
- XLPE|Cross-Linked Polyethylene Wire Insulation|
- Y|Wye|
- yd|Yard|
- yr|Year|
-