Tamilnadu Pwd Standard Data Book For Buildings Jun 2026

: +10% to +15% depending on the specific city. Tamil Nadu Public Works Department (PWD)

| Section | Content | |---------|---------| | A | Basic labour constants (unskilled, semi-skilled, skilled, highly skilled) | | B | Material constants – cement, steel, sand, aggregate, bricks, tiles | | C | Equipment & machinery – mixer, vibrator, hoist, etc. (hourly output) | | D | Analysis of rates for individual items of work (earthwork, concrete, RCC, brickwork, plaster, flooring, roofing, joinery, painting, etc.) | | E | Lead & lift statements for earth and materials | | F | Schedule of sundry items (scaffolding, formwork, curing, etc.) | | G | Standard overheads & contractor’s profit percentage | | H | District-wise correction factors (for transport, local labour availability) | tamilnadu pwd standard data book for buildings

Outlines the quality standards and technical directions that departmental officers must follow. Major Sections and Annexures : +10% to +15% depending on the specific city

Calculation of "lead charges" for transporting materials in plains vs. hills. Annexure VII Major Sections and Annexures Calculation of "lead charges"

If a contractor claims that digging a trench required more effort than estimated, the dispute resolution committee refers to the SDB. If the soil classification matches the SDB standard, the claim is rejected. If the soil is "hard rock" as defined by the SDB parameters (distinct from "soft rock" or "ordinary soil"), the rates are adjusted accordingly. The definitions provided in the preliminary chapters of the SDB regarding soil classification and measurement rules serve as the legal definitions in these contracts, reducing judicial ambiguity and protecting the state from exaggerated claims.

The Standard Data Book was conceptualized to eliminate this variability. It establishes a "Standard Method of Measurement" that mandates exactly how much material, labor, and machinery is required for a specific quantity of work. It converts the fluid process of construction into a rigid, auditable metric, ensuring that a brick laid in Chennai costs the same in terms of labor and material consumption as a brick laid in Coimbatore.