ESTIMATION

IRUSSOR — Indian Railways Unified Standard Schedule of Rates

Indian Railways Unified Standard Schedule of Rates

Also calledirussorirussor full formwhat is irussorirussor meaningindian railways unified standard schedule of rates

Definition

Railways' nationwide rate book — supersedes individual zonal USSORs. Used by all 18 zones of Indian Railways for civil construction, P-way, electrification, and S&T work. Updated periodically by Railway Board.

Frequently asked

What is the full form of IRUSSOR?

IRUSSOR = Indian Railways Unified Standard Schedule of Rates. Railways' nationwide rate book — supersedes individual zonal USSORs.

Related estimation terms

Construction Cost Estimation

Per sqft cost ₹1500-3500 in India

Quantity Estimation

Estimate cement, steel, sand, aggregate for given area

Material Wastage Factors

Cement 2-3%, steel 3-5%, tiles 5-10% typical

Bill of Quantities (BOQ)

Itemised list of work activities with quantities and unit rates — forms the priced contract document.

Rate Analysis

Computation of unit rate from material + labour + plant + overhead + profit. Reference: DSR, state SOR, in-house DB.

Abstract Estimate

Cost estimate at concept stage based on plinth area or per-bed/per-room rates. ±20% accuracy.

Detailed Estimate

Quantity-based estimate from drawings. Each work item × unit rate × quantity = cost. ±5% accuracy.

Contingency

Provision for unforeseen costs. CPWD: 3%. Private: 5-10%. Higher for renovation than new build.