Tamil Nadu Pwd Building Practice Standard Data Book Exclusive ((new)) May 2026

The book is structured to guide a project from site preparation to final finishing:

Defining precise quantities of raw materials (cement, steel, aggregate) and labor hours for specific units of work.

Breaks down the "Data" for each item of work. For example, a single cubic meter of concrete is broken into the exact weight of stone jelly, sand, and cement required. The book is structured to guide a project

The is the essential technical manual for civil engineers, contractors, and architects involved in public works across Tamil Nadu. It serves as the primary reference for material quantities, labor requirements, and construction methodologies required to execute standardized infrastructure projects. Core Purpose and Importance

Ensuring that every government building, from a local panchayat office to a major hospital, adheres to the same structural integrity standards. Key Components of the Data Book The is the essential technical manual for civil

Includes provisions for "Extra Percentages" in specific regions like hilly tracts (e.g., Yercaud, Kalrayan Hills) or major corporations (e.g., Chennai, Madurai) where labor or transport costs are higher. Integration with the Schedule of Rates (SOR)

This document, often referred to alongside the , provides a unified framework for: Key Components of the Data Book Includes provisions

Setting the benchmarks for construction safety and material standards, such as aggregate grading and concrete mix designs (M-20, M-25, M-30).

Outlines the mandatory standards for sand, cement, and steel, often referencing Indian Standard (IS) codes for verification.