Construction Abbreviations and Acronyms

1. ST PR
   Static Pressure
2. TK BD
   Tackboard
3. THRES
   Threshold
4. RY/RWY
   Runway
5. CMRCL
   Commercial
6. A.G.A
   American Gas Association
7. r-f
   Radio Frequency
8. S.W.P.
   Safe Working Pressure
9. E.D.R.
   Equivalent Direct Radiation
10. r/h
    Relative Humidity
11. P.L.F.
    Plant Load Factor
12. i.p.s.
    Iron Pipe Size
13. M2F
    Male To Female
14. FCD
    For Construction Drawing
15. CAT
    Caterpillar Inc.
16. CAT
    Construction Activity Tracking
17. LHS
    Limited Height Subway
18. LHS
    Local Housing Strategy
19. P&M
    Plant and Machinery
20. SO
    Sash Opening

Last updated: May 2, 2025 — Total entries: 8,262