Construction Abbreviations and Acronyms

1. w sup
   Water Supply
2. W Tk
   Water Tank
3. W/L
   Water Line
4. H/E
   Heat Exchanger
5. H/X
   Heat Exchanger
6. L&M
   List of Materials
7. 459A
   Burglar Alarm
8. AFPA
   American Forest and Paper Association
9. MNTAIN
   Mountain
10. CTI2
    Class
11. STR8
    Straight
12. 555
    Not Available
13. XLR8
    Accelerate
14. XNTRK
    Eccentric
15. 251
    Alabama
16. 256
    Alabama
17. 334
    Alabama
18. 659
    Alabama
19. 938
    Alabama
20. APRX
    Approximate

Last updated: May 2, 2025 — Total entries: 8,315