Special Publication 21 · 2005

# Handbook of
Building Materials

573 Indian Standards across 25 material categories —
searchable, categorised, and ready to reference.

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573 IS Standards
25 Material Categories
929 Pages Indexed

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## 25 Material Categories

Every building material section from SP‑21, indexed and searchable.

About SP‑21

## India's Reference for Building Material Standards

BIS Special Publication 21 consolidates all Indian Standards relevant to building and construction materials — from Portland cement to wire ropes, sanitary fittings to structural steels. Published by the Bureau of Indian Standards, it is the authoritative handbook used by architects, structural engineers, contractors, and quality inspectors across the country.

This portal indexes the 2005 edition (929 pages) into 573 discrete IS standards with full-text search, keyword extraction, and section-level retrieval — making the handbook accessible without manual page-turning.

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### Instant Retrieval

Full-text search across all 573 standards with ranked results.

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### Section-Level Detail

Scope, requirements, delivery conditions — all structured fields.

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### 25 Categories

Organised by BIS material sections, mirroring SP‑21's own structure.

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### Official Source

Parsed directly from the BIS SP‑21 : 2005 authoritative edition.

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