| 330 - 339 : SECONDARY ELEMENTS TO FLOORS | ||
|---|---|---|
| 330 | Secondary Elements to Floors (Grouped) | |
| 331 | Secondary suspended floors | |
| 332 | Secondary floor beds | |
| 333 | Plinths | |
| 334 | ||
| 335 | Floor openings e.g. trap doorways | |
| 336 | ||
| 337 | ||
| 338 | Others e.g. barred openings | |
| 339 | Parts and accessories | |