The list of abbreviations used in a set of structural drawings varies from office to office. Be sure to check the front section of the drawing set for the abbreviations used within.
ASD | Allowable Stress Design |
ACI | American Concrete Institute |
AISC | American Institute of Steel Construction |
AISI | American Iron and Steel Institute |
ASTM | American Society for Testing and Materials |
AWS | American Welding Society |
AB | Anchor Bolt |
B | Bottom |
BM | Beam |
BRG | Bearing |
BLK | Block |
BOF | Bottom of Foundation |
BOT | Bottom |
BRKT | Bracket |
CIP | Cast-In-Place |
CLR | Clear |
COL | Column |
CONC | Concrete |
CMU | Concrete Masonry Unit |
CRSI | Concrete Reinforcing Steel Institute |
CONST JT | Construction Joint |
CONT | Continuous |
CJ | Control Joint |
DEPR | Depression |
DET | Detail |
DL | Development Length |
DIA | Diameter |
DIM | Dimension |
DIR | Direction |
DWLS | Dowels |
EA | Each |
EE | Each End |
EF | Each Face |
EJ | Expansion Joint |
ES | Each Side |
EQ | Equal |
EW | Each Way |
EXP Bolt | Expansion Bolt |
EXP JT | Expansion Joint |
FF | Far Face |
FT | Foot or Feet |
FIN | Finish |
FL | Floor |
FTG | Footing |
FND | Foundation |
GALV | Galvanized |
GA | Gauge |
GR | Grade |
GB | Grade Beam |
GP | Gusset Plate |
HT | Height |
HP | High Point |
HS | High Strength |
HEF | Horizontal Each Face |
HIF | Horizontal Inside Face |
HOF | Horizontal Outside Face |
HOR | Horizontal |
IN | Inch |
ID | Inside Diameter |
ICBO | International Conference of Building Officials |
INV | Invert |
JT | Joint |
JST | Joist |
K | Kip (1000 Pounds) |
LW | Light Weight |
LWC | Light Weight Concrete |
LRFD | Load and Resistance Factor Design |
LLV | Long Leg Vertical |
LP | Low Point |
MAS | Masonry |
MTL | Metal |
NF | Near Face |
NWC | Normal Weight Concrete |
NIC | Not in Contract |
OC | On Center |
OD | Outside Diameter |
OPNG | Opening |
PC | Pile Cap |
PL | Plate |
PT | Point |
PVC | Polyvinyl Chloride |
PSF | Pounds per Square Foot |
PSI | Pounds per Square Inch |
R | Radius |
REINF | Reinforced |
RETG | Retaining |
RET | Return |
RE | Right End |
SECT | Section |
SC | Shear Connector |
SHT | Sheet |
SLV | Short Leg Vertical |
SIM | Similar |
SOG | Slab on Grade |
SL | Splice Length |
SQ | Square |
STD | Standard |
STL | Steel |
SDI | Steel Deck Institute |
SF | Step Footing or Square Foot |
STIFF | Stiffener |
STR | Structural |
SUP | Support |
SYM | Symmetrical |
THK | Thick or Thickness |
THRD | Threaded |
T&B | Top and Bottom |
T | Top |
TO | Top of |
TOC | Top of Concrete |
TOF | Top of Foundation |
TOS | Top of Steel |
TOW | Top of Wall |
TYP | Typical |
UNO | Unless Noted Otherwise |
US | Underside |
VEF | Vertical Each Face |
VIF | Vertical Inside Face or Verify in Field |
VOF | Vertical Outside Face |
WWF | Welded Wire Fabric |
W/ | With |
WP | Working Point |