AB - aggregate base

ABS - acrylonitrile-butadiene-styrene

alum - aluminum

alw - allowance

amp - ampere

ANSI - American National Standards Inst.

APA - American Plywood Inst.

ASME - Amer. Soc. of Mech. Engineers

ASTM - Amer. Soc. for Testing & Materials

avg - average

b/v - brick veneer

BC - begin curve

bd ft - board foot

bdl - bundle

bldg - building

BM - bench mark

c - circumference

c to c - center to center

CAD - computer aided design

CB - 1) concrete block 2) catch basin

CE civil engineer

Cem. - cement

cem. fl - cement floor

cer. - ceramic

cfm - cubic feet per minute

CI - cast iron

CIP - cast iron pipe

com - common

conc - concrete

constr - construction

contr - contractor

ctb - ceramic tile base

ctr - center

cu - cubic

cu ft - cubic feet

cu in - cubic inch

cu yd - cubic yard

cwp - circulating water pump

d - 1) diameter 2) penny

D - deep

dbl - double

DC - direct current

dev - development

DF - douglas fir

df - drinking fountain

dia - diameter

dk - deck

dr - door

DWG - drain

dwg - drawing

E.G. - existing grade

ea - each

EC - end of curve

eff. - efficiency

el - elevation

emb - embankment

engr - engineer

EP - edge of pavement

eq - equal

equip - equipment

et - edge thickness

exc - excavation

exp.jt. - expansion joint

ext. - external

F2S - faced two sides

fco - floor cleanout

FG - finish grade

fhc - free of heart center

fl dr - floor drain

flr - floor

fp - freezing point

fpm - feet per minute

fps - feet per second

freq - frequency

ftg - footing

ga - gauge

gal - gallon

galv - galvanized

GFI - ground fault interrupter

GFIC - ground fault circuit

GPH - gallons per hour

GPM - gallons per minute

gr - grade

h - height

H.D.G. - hot dip galvanized

HAP - height above plate

hb - hose bibb

hd - head

hgt - height

hp - horsepower

ht - 1) height 2) heat

htg - heating

htr - heater

HVAC - heat

hvy - heavy

HW - hot water

I - I-beam

ID - inside diameter

in. - inch

jb - junction box

J-box - junction box

jnt - joint

jt - joint

kw - kilowatt; one thousand watts

L - length

lam - laminated

lav - lavatory

lb - pound

lf - lineal feet

lg - 1) long 2) large

lgth - length

LH - left hand

lin - lineal

LP - low pressure

LPG - liquified petroleum gas

ls - limestone

mech - mechanical

mfd - manufactured

mh - manhole

NBS - National Bureau of Standards

NDE - nondestructive examination

NIC - not in contract

nps - nominal pipe size

O & P - overhead and profit

OC - 1) on center 2) center-to-center

OD - outside diameter

OSB - oriented strand board

PB - polybutylene plastic

pb - pull box

pc - piece

perf - perforated

PG - projected grade

PI - point of intersection

PMP - perforated metal pipe

ppm - parts per million

pr - 1) pair 2) pressure rated

psf - pounds per square foot

psi - pounds per square inch

PT - pressure treated

PV - photovoltic

pwr - power

pwt- pennyweight

r - radius

R and R - remove and replace

r/w - right of way

rad - radius

RBM - reinforced brick masonry

rd - round

red - reduce

ref - reference

reg - 1) regular 2) region

req - require

rev - revised

RH - right hand

rm - room

rnd - round

rt - right

SF - square foot

SG - subgrade

spec - specifications

sq - square

std - standard

sur - surface

surv - survey

sy - square yard

sys - system

T & E - tools and equipment

T & G - tongue and groove

temp - temporary

tol - tolerance

topo - topographical

tot - total

TP - turning point

tpf - taper per foot

ts - tensile strength

u - unit

UBC - Uniform Building Code

util - utilities

vb - valve box

ventilation & air conditioning

wd - wood

wh - water heater

wwf - welded wire fabric

PO Box 391 Geronimo, CA 94963 Phn: (800) 201-3278 Fax: (415) 488-9559

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