| Building type | Load (W/m²) | |---------------|-------------| | Office | 30 | | School | 20 | | Hospital | 50 | | Hostel | 25 |
The term "exclusive" often gets thrown around, but in the context of the PWD SDB, it signifies its authoritative nature. It is the exclusive standard used for preparing the Schedule of Rates (SOR). | Grade | Target strength (N/mm²) | Cement
Without the Data Book, the SOR is just a list of prices. The Data Book provides the justification for those prices. | Grade | Target strength (N/mm²) | Cement
As of 2025, the construction industry is volatile. Steel prices have fluctuated, and M-Sand regulations have tightened. The Exclusive 2025-26 revision of the Data Book (expected release April 2025) is rumored to include: | Grade | Target strength (N/mm²) | Cement
| Grade | Target strength (N/mm²) | Cement (kg/m³) | w/c ratio | |-------|------------------------|----------------|-----------| | M20 | 26.6 | 320 | 0.50 | | M25 | 31.6 | 370 | 0.45 | | M30 | 38.2 | 400 | 0.40 | | M35 | 43.5 | 420 | 0.38 |