| Abbreviation | Definition |
|---|---|
| BIM | Building Information Modelling |
| BIR | Built In Robe |
| BIR | Built In Wardrobe |
| BIU | Beam In Use |
| BIW | Built In Wardrobe |
| BIW | Built-In Wardrobe |
| BJ | Button Jointed |
| BKA | Baker Kavanagh Architects |
| BKL | Brininstool, Kerwin and Lynch |
| BL | Base Line |
| BL | Basement Ladder |
| BL | Broadloom |
| BLA | B l a in Landscape Architecture |
| BMICH | Bandaranayake Memorial International Conference Hall |
| BMS | Building Management Services |
| BN | Blind Nailing |
| BNCA | Bhanuben Nanavati College of Architecture |
| BOAQ | Board of Architects of Queensland |
| BOAQ | Board of Architects Queensland |
| BOD | Bottom Of Duct |