2003-12-31
Zkratky
Zkratky jsou vybrány z projektové, zadávací a jiné stavební dokumentace různého druhu (časopisů,
příruček), a to z britských, amerických a kanadských podkladů. Jsou to zkratky, které jsou
Anglosasovi v kontextu obvykle jasné, avšak našim inženýrům působí někdy obtíže. — Většina
zkratek byla získána vlastní excerpcí. Některé jsou převzaty z jiných seznamů zkratek uváděných
v severoamerické nebo britské literatuře. Poznamenejme, že zkratky nejsou – až na zkratky
označující veličiny – nijak standardizovány; proto se vyskytuje týž význam v různých zkratkových
variantách.
Zkratky jsou řazeny abecedně. Pokud se v některých zkratkách vyskytuje jiný než alfabetický
symbol (', /, &, @, #), nepřihlíží se k němu. Rozlišují se ale případy, kdy se vyskytuje v praxi psaní bez
symbolu a s vloženým symbolem, např. AC, A/C
Způsob psaní zkratek v literatuře není jednotný. Pro jednoduchost jsou v tomto seznamu
všechny zkratky psány velkými písmeny a bez teček, i když se někdy vyskytnou v malých písmenech,
eventuálně s tečkou. Malá písmena jsou zachována jen tam, jde-li o zkratku užívanou pro název
měrné jednotky, popř. ve výjimečných případech (např. X-ing, STank aj.).
Český význam zkratek není uveden, předpokládá se, že uživatel seznamu má k dispozici
vhodný slovník.
Výklad značek je v americkém pravopisu (tj. vapor, nikoliv vapour), pokud nejde o slovo, které
je v názvu britské organizace. Označení (UK) znamená, že jde o britský úzus, popř. britské předpisy.
Označení (US) analogicky znamená předpisy platné v USA, popř. severoamerický pravopisný úzus.
Speciální značky
@ at
# number; size
Alfabetické, popř. alfanumerické značky
A
A
aeration
A201
General Conditions of Contract for Construction (US)
AAA
American Arbitration Association
AACE
Association for the Advancement of Cost Engineering
AASHO
American Association of State Highway Officials
AASHTO
American Association of State Highway and
Transportation Officials
AB
anchor bolt; absorption
ABC
aggregate base course
ABS
acrylonitrile butadiene styrene
ABT
Association of Building Technicians (UK)
ABV
above
AC
alternating current; acoustical
A/C
air conditioning
ACCA
Association of Chartered Certified Accountants (UK)
ACB
asbestos-cement board
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ACC
access
ACD
automatic closing device
ACE
Association of Consulting Engineers (US)
ACEC
American Consulting Engineers Council
ACFL
access floor
ACI
American Concrete Institute
ACPA
American Concrete Pavement Association
ACPL
acoustical plaster
ACR
acrylic plastic
ACT
acoustical tile
AD
access door; area drain; adsorption
ADD
addendum
ADD'L
additional
ADH
adhesive
ADJ
adjacent
ADJT
adjustable
ADR
alternative dispute resolution
ADS
automatic door seal
ADT
average daily traffic
A&E, A/E, AE
architect and engineer, architect or engineer
AFF
above finished floor
AG
above grade
AGA
American Galvanizers Association
AGC
Associated General Contractors (US)
AGF
above-ground facility; above-ground floor
AGG
aggregate
AGL
above ground level
AGVS
automated guided vehicle system
AHU
air-handling unit
AIA
American Institute of Architects
AICE
Associate of the Institute of Civil Engineers (UK)
AIPM
Australian Institute of Project Management
AIR COND
air conditioning
AISC
American Institute of Steel Construction
AISI
American Iron and Steel Institute
AITC
American Institute of Timber Construction
AL
aluminum
ALARP
as low as reasonably practical/possible
ALLOW
allowance
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ALP
airport layout plan
ALS
American Lumber Standards
ALT
alternate; alteration; altitude
ALTN
alternate; alteration
AMD
air-moving device
AMT
amount
ANC
anchor
ANL
anneal
ANOD
anodized
ANSI
American National Standard Institute
AOD
above ordnance datum
AP
access panel
APA
American Plywood Association; American Planning
Association
APC
acoustical plaster ceiling
APM
architectural project management
APPD
approved
APPROX
approximate
APPX
appendix
APX
approximate
APT
as per today
AR
as rolled; acid resisting
ARBA
American Road Builders Association
ARCH
architect
Arch. & Eng.
architect and engineer
ARCHT'L
architectural
ARCUK
Architect's Registration Board of the United Kingdom
ARCW
arc welding
ARM
adjustable mortgage payment
ARS
asbestos roof shingles
ART
artificial
ARTBA
American Road and Transportation Builders
Association
AS
automatic sprinkler
ASA
American Standards Association; American Society
of Appraisers
ASAP
as soon as possible
ASB
asbestos
ASC
above suspended ceiling
ASCE
American Society of Civil Engineers
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ASHRE
American Society of Heating, Refrigeration, and Air
Conditioning Engineers
ASHVE
American Society of Heating and Ventilation
Engineers
ASME
American Society of Mechanical Engineers
ASPH
asphalt
ASR
alkali-silica reaction
ASREC
American Society of Real Estate Counselors
ASTM
American Society for Testing Materials
AT
asphalt tile; acoustical tile
ATC
architectural terra-cotta; acoustical tile ceiling
ATTN
attention
ATV
all-terrain vehicle
AUTO
automatic
AVG
average
AWI
Architectural Woodwork Institute (US)
AWS
all-wood screws; American Welding Society
AWT
advanced wastewater treatment
AZA
American Zinc Association
B
B
beam; bathroom; basement; boiler water
BA
bright-annealed
BACMI
British Aggregate Construction Materials Industries
BALC
balcony
BANANA
build absolutely nothing anywhere near anybody
B&B
balled and burlapped
BBI
building cost index
BBD
bulletin board
BD
board
BEL
below
BET
between
BEV
beveled
BFP
backflow preventer
BG
Birmingham gauge
BH
borehole; Brinell hardness
BHP
break horsepower
BI
bodily injury; business interruption; biological
BIB
bib-cock
BIM
building information modeling; building information
management
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BIT
bituminous
BJT
bed joint
BL
building line
BLDG
building
BLK
block; black; bulk
BLKG
blocking
BLR
boiler
BLT
built
BM
bench mark; beam; board measure
BMD
bending moment diagram
BOCA
Building Officials and Code Administrators
International (US)
BOD
biochemical oxygen demand; blackout door
BOLT
build-operate-lease-transfer
BOO
build-own-operate
BOOT
build-own-operate-transfer
BOQ
bill of quantities
BOT
bottom; build-operate-transfer
BP
blue print; base plate; boiler pressure; back plaster
B&P
balled and platformed
BPL
bearing plate
BR
bedroom; boiler room
BR
bare root
BRC
brace
BRCG
bracing
BRE
Building Research Establishment
BRG
bearing
BRK
brick
BRKT
bracket
brl
barrel
BRZ
bronze
BRZG
brazing
BS
British Standard; both sides
B&S
bell and spigot; beams and stringers
BSC
balanced scorecard
BSCP
British Standard Code of Practice
BSI
British Standards Institution
BSMT
basement
BSR
building space requirements
BSTD
bastard
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BSW
Whitworth thread
BTB
bituminous treated base
BthU
British thermal unit
BTU
British thermal unit
BUR
built up roofing
BURSI
Better Understanding of Roofing Systems (US)
BVL
beveled
BVS
best value selection
BW
butt weld; both ways
BWG
Birmingham wire gauge
BWIC
builder's work in connection
BWK
brickwork
BX cable
armored cable
C
C
closet; clock; conductivity; course; chemistry
C&G
City and Guilds of London Institute
CA
coarse aggregate
ca.
circa
CAB
cabinet; cement-asbestos board
CABO
Council of American Building Officials
CAD
computer-aided design, c.-a. draughting; cadmium
CADD
computer-aided design and draughting
CAE
computer-aided engineering
CAES
compressed-air energy storage
CAM
camber
CAP
computer-aided planning
CAR
Contractor's All Risk
CB
catch basin
CBR
California bearing ratio
cc
cubic centimeter
CC
copy to
CCI
construction cost index
CCIP
contractor controlled insurance program
CCS
color-coated steel
CCTV
closed-circuit television
cd
candela
CD
cable duct
CDRG
Construction Disputes Resolution Group
CEDR
Centre for Effective Dispute Resolution
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CEI
Council of Engineering Institutions (UK)
CEM
cement
CEM AB
cement-asbestos board
CEM FL
cement floor
CEM MORT
cement mortar
CEM PLAS
cement plaster
CEO
chief executive officer
CER
ceramic
CERT
certified
CESMM
Civil Engineering Standard Method of Measurement
(UK)
CF
cube foot; cooling fan
CFA
continuous-flight auger
CFL
counterflashing
CFM
cubic feet per minute
CFO
chief financial officer
CFR
composite fiber reinforcement
CFT
cubic foot
CG
corner guard; coarse grain; ceiling grille
CGL
commercial general liability
CHAM
chamfer
CHBD
chalkboard
CHFD
chamfered
CHIM
chimney
CHT
ceiling height
CI
cast iron; curb inlet; coolant inlet
CIBSE
Chartered Institute of Building Service Engineers
(UK)
CIF
capital investment folio
CII
Construction Industry Institute
CIP
cast-iron pipe
CIPC
cast-in-place concrete
CIR
circle; circuit
CIRC
circumference
CIOB
Chartered Institute of Building
CIRIA
Construction Industry Research and Information
Association
CISC
Canadian Institute of Steel Construction
CITB
Construction Industry Training Board (UK)
CJ
cooling jacket
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CJT
control joint
CK
caulk
CL
center line; cross-linked
CLG
ceiling
CLKG
caulking
CLL
contract limit line
CLO
closet
CLR
clear
CLS
closure
CL W GL
clear wire glass
CM
centimeter
C/M
concrete masonry
CMP
corrugated metal pipe
CMT
ceramic mosaic tile
CMU
concrete masonry unit
CMV
continuous mechanical ventilation
CND
conduit
CNE
combined negative earth
CO
change order; cut-out; coolant; cleaning opening;
coagulation
COD
cash on delivery; collect on delivery
COL
column
COMB
combination
COMP
compaction; compression; component; composition
COMPF
composition flooring
COMPO
composition
COMPR
composition roofing
COMPT
compartment
CONC
concrete
CONC C
concrete ceiling
CONS
construction
CONST
construction
CONT
continuous
CONT'D
continued
CONTR
contract; contractor
CONT W
continuous window
COORD
coordinate
COP
coping
COR B
corner bead
CORGI
Confederation for Registration of Gas Installers
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CORR
corrugated
cp
candlepower
CP
code of practice; cesspool
CPA
critical path analysis
CPF
contract price fluctuations
CPI
consumer price index
CPM
critical path method
CPR
copper
CPS
critical path scheduling
CPT
carpet
CQC
construction quality control
CR
cold-rolled; ceiling register; chromium
CRB
certified residential broker
CRG
cross grain
CRM
construction risk management
CRS
course; certified residential specialist; cold-rolled
steel; cationic rapid setting
CRSI
Concrete Reinforcing Steel Institute (US)
CS
caulking seam; cast stone; countersink; Concrete
Society (UK)
C/S
counter-sunk
CSA
Canadian Standards Association
CSBE
community small business enterprises
CSF
condensed silica fume
CSG
casing
CSI
Construction Specification Institute (US)
CSK
countersink
CSMT
casement
CSP
corrugated steel pipe
CSPI
Corrugated Steel Pipe Institute (Canada)
CSSBI
Canadian Sheet Steel Building Institute
CST
cast stone
CT
ceramic tile
CTB
cement-treated base
CTD
coated
c. to c.
center to center
CTR
counter; center
Cts.
cents
CTSK
countersunk screw
cu
cubic
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CW
cold water; cooling water; clockwise
CX
connection
cy
cubic yard
CYD
cubic yard
CYL L
cylinder lock
D
D
drain; distillation
DA
day, days; doubleacting
DAD
double-acting door
DAE
dispute adjudication expert
DAS
defect action sheet
D/B
design-build
DBA
doing business as
DBE
Disadvantaged Business Enterprise (US)
DBIA
Design-Build Institute of America
DBO
design, build, and operate
DBOM
design-build-operate-maintain
DC
direct current; direct cost
D&C
design and construction
DCF
discounted cash flow
DCQI
Design & Construction Quality Institute (US)
DDT
deduct
DEG
degree
DEM
demolish
DEP
depressed
DF
drinking fountain; degree of freedom; disinfection
DFT
dry-film thickness
DGA
dense-graded aggregate
DH
double hung
DHI
Door and Hardware Institute (US)
DHW
domestic hot water
DI
deionization
DIA
diameter
DIAG
diagonal; diagram
DIAM
diameter
DIM
dimension
DIS
disability
DIV
division
DL
dead load
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DMT
demountable
DN
down
DO
ditto
DOE
Department of Energy (US)
DOT
Department of Transportation
DOZ
dozen
DP
dampproofing; dew point
DPR
damper; dispenser
DPC
dampproof course
DR
door; dining room; dressing room; drain
DRB
drainboard; dispute review board
DRG
drawing
DRN
drain; drainage
DRWL
dry wall
DS
downspout; drop siding
D/S
downstreams; drop siding
DSGN
design
DSW
door switch
DT
drain tile; drum trap
DTA
dovetail anchor
DTL
detail
DTS
dovetail anchor slot
DU
disposal unit
DUP
duplicate
DW
dumbwaiter
DWG
drawing
DWR
drawer
DWV
drain, waste, and vent
E
E
earth; east; water engineering; equipment
Ea
each (ve sloupci jednotek = "ks")
EA
exhaust air
EAF
environmental assessment form
EAR
Erection All Risk
E and OE
errors and omissions expected
EB
elastomeric bearing; expansion bolt
ECC
earth continuity conductor
ED
electrodialysis
EER
energy-efficiency ratio
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EEI
Electrical Engineers Institute (US)
EF
each face
EIC
engineer in charge
EIS
environmental impact statement
EJ
expansion joint
EJCDC
?
EL
elevation; elastomeric laminated
ELCB
earth-leakage circuit-breaker
ELEC
electric
ELEV
elevator
EM
end-matched; expanded metal
EMER
emergency
EMT
electrical metallic tubing
ENC
enclose
ENG/GEN
energy generator
ENR
Engineering News Record (US)
EOE
equal opportunity employer
EP
electrical panelboard; elastomeric plain
EPA
Environmental Protection Agency (US)
EPC
engineer, procure, and construct (or: contract)
EPS
expanded polystyrene
EQ
equal; equation
EQP
equipment
EQUIP
equipment
EQUIPT
equipment
ESC
escalator
EST
estimate; estimated
EVT
equiviscous temperature
EWC
electric water cooler
EXC, EXCA
excavate
EXCAV, EXCAVN
excavation
EXG
existing
EXH
exhaust
EXIST
existing
EXMP
expanded metal plate
EXP
exposed
EXP BT
expansion bolt
EXS
extra strong
EXT
exterior; extension
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F
F
fan; filtration
FA
fire alarm; fresh air
FAI
fresh-air intake
FAS
fasten
FB
face brick
FBD
fiberboard
FBO
furnished by others
FBRK
fire brick
FCEC
Federation of Civil Engineering Contractors
FD
floor drain; forced draught
FDB
force-draught blower
FDC
fire-department connection
FDN
foundation
FE
fire extinguisher; fire escape
FEC
fire extinguisher cabinet
FEM
fixed-end moment; finite element method
FF
factory finish
FFE
finished floor elevation; furniture, fixtures and
equipment
FFL
finished floor level; finished floor line
FG
finished grade; finished ground; fine grain
FGL
finished ground level; fiberglass
FH
fire hose; flat head
FHA
Federal Housing Administration (US)
FHC
fire-hose cabinet
FHMS
flat head machine screw
FHY
fire hydrant
FI
field inlet
F&I
furnish and install
FIN
finish
FJT
flush joint
FL
floor; floor line; flashing
FLCO
floor cleanout
FLG
flashing; flooring; flange
fl. oz.
fluid ounce
FLR
floor
FLT
flight
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FLUR
fluorescent
FLX
flexible
FM
flanged to mechanical; fixed-end moment
FMT
flush metal threshold
FN
fence
FND
foundation
FNDS
foundations
FOB
free on board
FOC
face of concrete
FOF
face of finish
FOM
face of masonry
FOS
face of studs; factor of safety
FOUNDS
foundations
FP
fireproof; flameproof
FPA
Fire Protection Association (UK)
FPL
fireplace; floor plate
fpm
feet per minute
FPRF
fireproof
FR
family room; frame
FRA
fresh air
FRC
fiber reinforced concrete; fire resistant coating
FRG
forged
FRIBA
Fellow of the Royal Institute of British Architects
FRS
fire research station
FRT
fire-retardant
FS, F/S
full size; filtration/separation
ft
foot; feet
FTG
footing; fitting
FV
front view
FUR
furred
FUT
future
FV
future value
FW
fire wall; flash welding; feed water
FWD
forward
FWK
formwork; falsework
G
G
girder
GA
gauge; general arrangement
GAC
granular activated carbon
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GAI
general agreement of indemnity
gal
gallon
GB
grab bar; glass block
GBGs
Good Building Guides
GC
general conditions; general contract; general
contractor; government contract; general construction
GCMU
glazed concrete masonry units
GD
grade
GEM
growing equity mortgage
GF
ground face
GI
galvanized iron
GKT
gasket
GL
glass; glazing; glazed finish
GLB
glass block
GLF
glass fiber
GLULAM
glue laminated
GM
grade marked
GMAW
gas metal arc welding
GO
general order
GP
general provisions; galvanized pipe
GPPL
gypsum plaster
GPM
graduated payment mortgage
gpm
gallons per minute
GPS
Global Positioning System
GPT
gypsum tile
GR
grade
GRC
glass-reinforced concrete; glassfiber-reinforced
cement
GRG
glassfiber-reinforced gypsum
GRN
granite
GRP
glass reinforced plastic; glassfiber reinforced
polyester, fiberglass
GSA
General Services Administration (US)
GSS
galvanized steel sheet
GST
glazed structural tile
GT
grout; grease trap; glazed tile
GTAW
gas tungsten arc welding
GV
galvanized
GVL
gravel
GYP
gypsum
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H
H
hydrology
HA
housing authority
HASP
health and safety plan
HB
hose bib; half bat
HBC
high-breaking capacity
HBD
hardboard
HC
hollow core
HD
heavy duty; high density; head
HDR
header
HDW
hardware
HE
heat exchanger
HES
high early-strength cement
HF
hot finished
HFRS
high float rapid setting
HGT
height
HH
handhold
HI
heat input
HJT
head joint
HK
hook
HM
hollow metal
HOR
horizontal
hp
horse power
HPHW
high-pressure hot-water
HPT
high point
hr
hour
HR
hot rolled
HSC
high strength cement
HSE
house; Health and Safety Executive (UK)
HSR
high speed rail
HT
height; high tensile; heat treated
HTG
heating
HTS
high tensile strength
HUD
Department of Housing and Urban Development (US)
HVAC
heating, ventilating, and air conditioning
HVY
heavy
HWD
hardwood
HWH
hot water heater
HWY
highway
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HX
hexagonal
HYD
hydraulic
HYS
high yield steel
I
IABSE
International Association for Bridge and Structural
Engineering
IB
I-beam
IC
indirect cost
ICE
Institution of Civil Engineers (UK)
ICBO
International Conference of Building Officials
ICC
International Chamber of Commerce
ICI
International Commission on Illumination
ICIA
International Credit and Insurance Association
ICRI
International Concrete Repair Institute
ID
inside diameter, internal diameter
IDP
integrated project delivery
IEE
Institution of Electrical Engineers (UK)
IEEE
Institute of Electrical and Electronic Engineers (US)
IF
inside face
III
Institute of the Ironworking Industry (US)
ILK
interlock
IMPG
impregnate
in
inch
INC
including; incorporated
INCIN
incinerator
INCL
included
INR
impact noise rating
INS
insulation; insurance
INSC
insulating concrete
INSF
insulating fill
INSPEC
inspection
INT
interior; interior adhesive; internal; intake
INTM
intermediate
INV, INVT
invert
IP
information paper
IPMA
International Project Management Association
IPS
iron pipe size; inside pipe size
IR
inside radius
IRR
internal revenue rate
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I/S
inside
ISRM
International Society For Rock Mechanics
ISSMFE
International Society for Soil Mechanics and
Foundation Engineering
ISSMGE
International Society for Soil Mechanics and
Geotechnical Engineering
IST
inside trim
IStructE
Institution of Structural Engineers (UK)
ITA
International Tunneling Association
IWEM
Institution of Water and Environmental Management
IX
ion exchange
J
J
joist
JB
junction box
JC
janitor's closet
JCT
junction
JCTN
junction
JF
joint filler
JT
joint
JUNC
junction
K
K
kitchen; key; kilopound
KB
knee brace
KCPL
Keene's cement plaster
KIT
kitchen
KO
knockout
KP
kickplate
KS
kitchen sink
Kt
knot
KPL
kickplate
L
L
live; length; left; labor
LA
lightning arrester
LAB
laboratory
LAD
liquidated and ascertained damages; ladder
LAM
laminated
LAN
local area network
LAT
lateral; latitude
LAV
lavatory
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LB
lag bolt
LBE
Local Business Enterprise (US)
LBL
label
LC
light control
LCC
life cycle costs
LCL
light center length
LD
low density
LDG
landing
LECA
light-expanded clay aggregate
LF
linear foot
LG
length; long
LGSEA
Light Gage Steel Engineers Association (US)
LH
left hand
LIC
license
lin. ft.
linear foot
LJT
longitudinal joint tie
LL
live load
LLF
light-loss factor
LM
lime mortar
LMR
lift machine room
LMS
lime stone
LNG
lining
LO
lifting operations
LP
light proof; lime putty; low pressure
L&P
lath and plaster
LPC
Loss prevention Council (UK)
LPG
liquefied petroleum gas
LPHW
low pressure hot water
LPT
low point
LR
living room
LS, L/S
lump sum
LS
left side; lead shield; licensed surveyor
LSC
lightweight structural concrete
LT
left; laundry trail; light
LTL
lintel
LVR
louver
LW
lightweight
LWC
lightweight concrete
LWIC
lightweight insulating concrete
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Abbreviations
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M
M
motor; meter; bending moment; modular ratio;
medium; media; material
MAC
macadam
MAN
manual
MAS
masonry
MATL, MAT'L
material
MATLS
materials
MAX
maximum
MB
machine bolt
MBE
Minority Business Enterprise
mbf
thousand board feet (1000x12"x12"x1")
MBMA
Metal Building Manufacturers Association (US)
MBR
member
MC
moisture content; medium-curing cutback; metal-clad;
medicine cabinet
MCA
Metal Construction Association (US)
MDF
medium-density fiberboard
M&E
mechanical and electrical
MECH
mechanical
MED
medium
MEP
mechanical, electrical, plumbing
MER
mechanical equipment room
MET
metal
MF
melamine-formaldehyde
MFD
metal floor deck
MFR
manufacturer
MFRGS
manufacturer's general specification
MGR
manager
MH, M/H
manhole; manhour
MHS
manhours
MI
malleable iron
MICC
mineral-insulated copper-covered
MIL
military specification
MIR
mirror
MISC
miscellaneous; miscellanies
MIX
mixture
MK
market; mark; master key
ML
material list
MLD
molding
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MLDG
molding
MLW
mean low water
MM
millimeter
MMB
membrane
MN
main
MO
masonry opening
Mo.
month
MOAT
Methods of Assessment and Testing
MOD
modular; model
MODER
moderate
MOV
movable
MR
mop receptor; multi-rotational
MRB
marble
MRD
metal roof deck
MRT
mean radiant temperature
MS
mild steel
MSDS
material safety data sheet
MSL
mean sea level
MT
mounted
MTFR
metal furring
MTHR
metal threshold
MTL
material
muf
melamine-urea formaldehyde
MULL
mullion
MURK
manual for uniform record keeping
M/WBE
minority or women businesses enterprises
MWK
millwork
N
N
north; neutral
NA
neutral axis
NAAMM
National Association of Architectural Metal
Manufacturers (US)
NAHB
National Association of Home Builders of the United
States
NASBP
National Association of Surety Bond Producers (US)
NAT
natural
NBR
nitril-butadiene rubber
NBS
National Bureau of Standards (US); National Building
Specification
NC
noise criteria
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NCCA
National Coil Coaters Association (US)
NCCER
National Center for Construction Education and
Research
NCM
non-corrosive metal
NCSPA
National Corrugated Steel Pipe Association (US)
NDT
non-destructive testing
NE
not exceeding
NEG
negative
NEM
National Electrical Manufacturers Association
NEC
National Electrical Code (US)
NF
nanofiltration
NFPA
National Fire Protection Association (US)
NHBC
National House-Building Council (UK)
NI
nickel
NIC
not in contract
NIOSH
National Institute of Occupational Safety and Health
(US)
NL
nailable
NM cable
nonmetallic sheathed cable
NMC cable
nonmetallic corrosion-resistant cable
NMT
nonmetallic
NOM
nominal
NPL
nipple
NPS
nominal pipe size
NPV
net present value
NR
noise rating; noise reduction
NRC
noise reduction coefficient
NRCA
National Roofing Contractors' Association (US)
NT
net
NTS
not true scale, not to scale
NVQ
National Vocational Qualifications
NTWT
net weight
NW
no-weathering exposure
O
O
other
OA
overall
O/A
on approval
OAI
outside-air intake
OBS
obscure; obsolete
OC
on center
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OCIP
owner controlled insurance program
OD
outside diameter
ODB
operate-design-build
OFF
office
OG
on grade; ogee
OGL
Original Ground Level
O/H
overhead
OHMS
oval head machine screw
OHWS
oval head wood screw
OJ
open-web joist
OP
opaque
OPC
ordinary Portland cement
OPG
opening
OPH
opposite hand
OPP
opposite
OPS
opposite surface
ORIG
original
OQ
ordinary quality
OS
Ordnance Survey (UK)
OSB
oriented strand board
OSHA
Occupational Health and Safety Administration
OT
overtime
OVH
overhead
OVHD
overhead
OW
observation well
P
P
pull chain; P-trap; pressure; pole; purity
PA
public address; polyamide
PABX
private automatic branch exchange
PAR
parallel; planed all round
PAV'T
pavement
PB
panic bar
PBAC
polystyrene bead aggregate concrete
PBD
particle board
PBS
prefabricated bituminous surfacing; planed both sides
PBX
private branch exchange
PC
precast; prime cost; polycarbonate; prestressed
concrete; Portland cement
PCA
Portland Cement Association (US)
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PCC
Portland cement concrete; precast concrete
PCF
pounds per cubic foot
PCI
Precast/Prestressed Concrete Institute (US)
PCRW
prestressed concrete reactor vessel
PD
paid
PE
polyethylene; plain end; porcelain enamel;
Professional Engineer; permanent easement
PED
pedestal
PERF
perforated
PERI
perimeter
PERT
Project Evaluation and Review Technique
PF
phenol formaldehyde
PFA
pulverized fuel ash
PFB
prefabricated
PFD
preferred
PFF
price fluctuation factor
PFL
pounds per lineal foot
PFN
prefinished
PG
plate glass
PI
plasticity index
PIARC
Permanent International Association of Road
Congresses
PIV
post-indicator value
PK
parking
PL
pile; plate; plug; power line; pipeline; public liability;
pedestal lavatory; property line
PLA
project labor agreement
PLAM
plastic laminate
PLAS
plaster
PLG
piling
PLLC
professional limited liability company
PLMB
plumbing
PLYWD
plywood
PM
project manager
PMMA
polymethyl methacrylate
PNEU
pneumatic
PNL
panel
PNT
painted; paint
PO
purchase order
POT
hollow block
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PP
polypropylene; pumps and plumbing
PP-AC
airconditioning power panel
PPGL
polished plate glass
PQC
pavement quality concrete
PR
pair
PRCST
precast
PREFAB
prefabricated
PRF
preformed
PROF
profit
PROJ
project
PS
provisional sum; polystyrene
P&S
plans and specifications
PSA
Property Service Agency (UK); Portland Cement
Association (US)
PSC
prestressed concrete
PSE
plane and square edged
PSF
pound per square foot
PSI
pound per square inch
PT
point; part
PTC
post-tensioned concrete
PTD
paper towel dispenser
PTFE
polytetrafluorethylene (Teflon)
PTN
partition
PTR
paper towel receptor
PU
polyurethane
PUD
planned unit development
PV
paving; present value
PVA
polyvinyl acetate
PVAC
polyvinyl acetate
PVB
polyvinyl butyral
PVC
polyvinyl chloride; pigment volume concentration
PVF
polyvinyl fluoride
PVMNT
pavement
PWD
plywood
PWK
pipework
Q
QA
quality assurance
QBS
quality based selection
QC
quality control
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QM
quality management
QR
quarter round
QS
quantity surveyor
QT
quarry tile
QTY
quantity
R
R
radius; right; riser; range outlet
RAB
return air; rabbet (rebate)
RAD
radiator; radius
RAP
reclaimed asphalt pavement
RB
rubber base; Rockwell hardness
RBL
rubble stone
RBM
reinforced brick masonry
RBT
rabbet (rebate); rubber tile
RC
reinforced concrete; rapid-curing cutback
R/C
reinforced concrete
RCCP
reinforced concrete culvert pipe; roller-compacted
concrete
RCP
reinforced concrete pipe; rust-converting primer
RD
roof drain; road
RE
resident engineer; round-edged; reinforced
REC
receivable
REC'D
received
RECP
receptacle
REF
reference; refrigerator
REFR
refractory; refrigerator
REG
register; regular
REINF
reinforcing
REM
remove; removable
REP
repair
REPL
replace
REQ'D
required
RES
resilient
RES
resident
RET
return
RET'D
returned
REV
revision; revised
REX
round-edged
RF
roof; reinforcement; resorcinol-formaldehyde
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RFG
roofing
RFI
request for information; request for installation; ready
for inspection
RFL
reflected
RFH
roof hatch
RFM
reinforcement
RFP
request for proposal
RFQ
request for qualification
RFTR
rafter
RH
relative humidity; right hand; Rockwell hardness
RHC
rapid-hardening concrete
RHTR
reheater
RIBA
Royal Institute of British Architects
RICS
Royal Institute of Chartered Surveyors
RIEI
Roofing Industry Education Institute (US)
RL
railing
RM
room
RO
rough opening; reverse osmosis
ROW
right of way
RPC
reactive powder concrete
rpm
revolutions per minute
RQD
rock quality designation
RQP
request for proposal
RR
railroad; rural route
RS
rapid setting
RSJ
rolled steel joist
RT
right; raintight
RTC
Regional Transportation Commission (US)
RVS
reverse
RVT
rivet
RW
raw water; rain water
R/W
right of way; random width
RWC
rainwater conductor
RWLB
Rule We Live By
RWP
rainwater pipe
S
S
south; switch; S-trap; suction; side; seamless; water
softening
SAA
Surety Association of America
SAF
safety
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SAN
sanitary
sb
stilb
SC
solid core; suspended ceiling
SCH
schedule
SCP
soil control procedure
SCT
structural clay tile
SD
storm drain
SDI
Steel Deck Institute (US); Steel Door Institute (US)
SDMH
storm drain manhole
SE
sawn-edged
SEAA
Steel Erectors Association of America
SEC
section
SECED
Society for Earthquake and Civil Engineering
Mechanics (UK)
SEQR
State Environmental Quality Review Act (US, NY)
SF
square foot
SF
shear force
SFA
sintered pulverized-fuel ash
SFD
shear force diagram
SFGL
safety glass
SFU
supply fixture unit
SG
sheet glass
SGD
sliding glass door
SH
shelf; sheet; shower; single-hung
SHO
shoring
SHT
sheet
SHTH
sheathing
SI
shrinkage ratio
SIM
similar
SIO
Surety Information Office (US)
SJI
Steel Joist Institute (US)
SK
sketch
SKL
skylight
SL
sleeve; snow load; shrinkage limit
SMH
sanitary manhole
SMM
Standard Method of Measurement
SNT
sealant
SO
supplied only
SON
sodium-vapor lamp
SOQ
statement of qualification
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SOV
shut-off valve
SP
soundproof; soil pipe; standpipe; static pressure
SPC
spacer; stage payment chart
SPEC
specification
SPFA
Steel Plate Fabricators Association (US)
SPK
speaker
SPL
special
SPT
standard penetration test
SQ
square; selected quality
square
100 sqft (in roofing trades)
SR
stress relieved; shrinkage ratio; steel rocker
SRA
stress-relief annealed
SRC
sulfate resistant cement
SRI
Steel Recycling Institute (US)
SS
steel sliding; stair stringer
S/S
stainless steel
SSK
service sink
SSPC
Steel Structures Painting Council (US)
SSQ
special selected quality
SST
stainless steel
ST
steel; street
STA
station
STank
Steel Tank Institute (US)
STC
sound transmission class
STD
standard
STG
seating; storage
STK
stock
STL
steel
STO
storage
STPG
stepping
STR
storage; structure
STRUC
structure
STube
Steel Tube Institute of North America
STW
storm water
SUB
substitute
SUBS
substantial
SUP
supply
SUR
surface
SURV
surveying
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SUS
suspended
SW
switch
S/W
spot-welded
SWG
standard wire gage
SWP
weatherproof switch
SY
square yard
SYM
symmetrical
SYN
synthetic
SYS
system
T
T
tee; tread; thermostat
TB
towel bar; through bolt
TBA
to be agreed
TBM
tunnel boring machine
TC
terra cotta; cold tar; tin-clad
TE
temporary easement; totally enclosed
TEL
telephone
T&G
tongue and groove
TGVJ
tongued, grooved, and V-jointed
TH
hot tar
THERMO
thermostat
THK
thickness; thick
THR
threshold
THRU
through
TKBD
tackboard
TKS
tackstrip
TMD
timed
TO
temporary occupancy
TOL
tolerance
TP
threadless pipe
TPD
toilet paper dispenser
TPTN
toilet partition
TPL
third party liability
TR
transom; tie rod
TRADA
Timber Research and Development Association
TRRL
Transport and Road Research Laboratory
TSL
top of slab
TST
top of steel
TUB
tubing
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TV
television
TYP
typical
TW
top of wall
TYP
typical
TZ
terrazzo
U
UB
universal beam
UBC
Uniform Building Code (US)
UC
undercut; universal column
UCATT
Union of Construction, Allied Trades and Technicians
(UK)
UCC
Uniform Commercial Law (US)
UCL
Uniform Commercial Law
UE
unedged
UF
UF
underground feeder; ultrafiltration; urea formaldehyde
UL
Underwriters Laboratories (US)
U/M, UM
unit of measure
UNF
unfinished
UP
unsaturated polyester
UPS
uninterruptible power supply
UR
urinal
U/S
upstream; underside
USG
United States gage
UV
ultraviolet
V
VAP
vapor
VAT
varnish; vinyl-asbestos tile
VAT
value added tax; vinyl asbestos tile
VAV
variable air volume
VB
vapor barrier; vinyl base
VCP
vitrified clay pipe
VDU
visual display unit
VENT
ventilate
VERT
vertical
VF
vinyl fabric
VG
vertical grain
VI
variation instruction
VIN
vinyl
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VIT
vitreous
VJ
v-joint
VNR
veneer
VOC
volatile organic compound
VOL
volume
VP
vent pipe
vpm
vibrations per minute
VPT
vinyl plastic pipe
VRM
vermiculite
VS
vapor seal; vent stack
VT
vinyl tile
W
W
west; width; wide
w/...
with ...
WA
water analysis
WB
wood base; welded base
WBE
Women Business Enterprise
WBF
weather and boilproof
WC
water closet
W/C
water-cement ratio
WD
wood; wind direction; well drilling
WG
water gauge; wired glass
WF
wide flange; wind force
WG
wire gage
WH
water heater; wall hung
WHB
wheel bumper
WHSE
warehouse
WI
water inlet; wrought iron; Welding Institute
WIN
window
wk
week
WK
work
WKG
working
WL
wind load; warning light
WM
wire mesh
WO
without
WP
waterproofing; working place; weatherproof outlet
WPB
weatherproof adhesive
WPC
white Portland cement
WPT
working point
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WR
water repellent; wash room
WRI
Wire Reinforcement Institute (US)
WRT
wrought
WS
water stop; water supply
WSCT
wainscot
WSP
water supply point
WT
weight; watertight; water tank; water tower
WTW
wall-to-wall
WV
water valve; wind velocity
W/V
weight-to-volume ratio
WVT
water vapor transmission
WW
waste water
WWF
welded wire fabric
X
X
extension; crossing (US)
XHVY
extra-heavy
X-ing
crossing (US)
XL
extra-large
XLPE
cross-linked polyethylene
XPM
expanded-metal mesh
XSECT
cross section
XSTR
extra-strong
Y
yd
yard
YP
yield point
YS
yield strength
YTD
year-to-date
Z
ZED
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