Tamil Nadu Pwd Building Practice Standard Data Book Exclusive May 2026

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

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

Offers a "Rough Cost Estimate" based on the total area of the building, which includes provisions for flooring, plastering, and basic amenities. Setting the benchmarks for construction safety and material

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)

Outlines the mandatory standards for sand, cement, and steel, often referencing Indian Standard (IS) codes for verification. It serves as the primary reference for material

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

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. often referred to alongside the

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

This document, often referred to alongside the , provides a unified framework for:

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