Tamilnadu Pwd Standard Data Book: For Buildings ^hot^

: Contains specifications and detailed analysis of rates for items like concrete mixes (M-20, M-25, M-30), specifying precise quantities of stone jelly, sand, and cement per cubic meter. Labor & Material Coefficients

Note: Actual rates vary with current SoR. The Data Book provides the (e.g., 0.46 cum sand per cum concrete); current SoR is multiplied to get current rates.

Do not rely on pirated scanned copies from 2010. You will under-bid or over-bid disastrously because material costs have doubled since then. tamilnadu pwd standard data book for buildings

The SDB works in tandem with the . While the SOR provides the current market price for materials, the SDB provides the "recipe" for the work. Key sections typically include: Tamil Nadu Public Works Department (PWD)

By following the guidelines and specifications outlined in the Tamil Nadu PWD Standard Data Book for Buildings, stakeholders can ensure that government buildings in the state are constructed to a high standard, are safe for occupancy, and meet the requirements of the PWD. : Contains specifications and detailed analysis of rates

The is the authoritative technical manual used by engineers and contractors to estimate the cost of government construction projects across the state. It provides a standardized breakdown of the labor, materials, and machinery required for every unit of work—such as one cubic meter of concrete or one square meter of brickwork. Purpose and Importance

| Component | Quantity | Unit Rate (₹) | Amount (₹) | |-----------|----------|--------------|-------------| | Cement (OPC 53 grade) | 6.25 bags (approx. 0.3125 MT) | 380/bag | 2,375 | | Sand (coarse) | 0.46 cum | 1,200/cum | 552 | | 20mm Aggregate | 0.92 cum | 1,400/cum | 1,288 | | Water | 0.15 cum | nominal | 10 | | Mixing & transporting | 1.0 cum | 180 | 180 | | Vibrator charges | 0.5 hour | 120/hr | 60 | | Shuttering (if included separately) | 2.5 sqm | 500/sqm | 1,250 | | Labour (mason + helper) | 1 mason + 2 helpers for 1.0 cum | 800 + 500 each | 1,800 | | | | | 7,515 | | Add 1% water charges, 1.5% tools & plants, 10% contractor’s overhead & profit | | | ~8,500 | Do not rely on pirated scanned copies from 2010

For the most current technical updates, you can check the Tamil Nadu PWD Schedule of Rates or official TNPWDEA resources . Tn Pwd Standard Data Book - sciphilconf.berkeley.edu

The Data Book is not a static document; it is revised periodically (typically every 3–5 years) to reflect changes in technology, wages, material costs, and productivity norms. The latest available major revision is often referenced as the edition (users must confirm the current version in force from the Tamil Nadu PWD’s Building Centre & Research Institute or the Chief Engineer’s office).

The book specifically focuses on (unlike other PWD data books for roads, bridges, or irrigation), making it the go-to reference for housing, office complexes, educational institutions, and healthcare facilities.

All PWD, Highways, and Chennai Metro Water Corporation tenders mandate that bids be prepared using the . Deviation is not permitted. Contractors must use the prescribed AoR to arrive at their quoted percentage above or below the estimate.