ESTIMATION
SOR — Schedule of Rates (Government rate book)
Schedule of Rates (Government rate book)
Also calledsorsor full formwhat is sorsor meaningschedule of rates (government rate book)
Definition
Generic name for any government rate book — used by every State PWD, Railway, Highway, and Municipal body. ~115 publishers across India. Each SOR lists items, units, and approved rates that bind tender estimates and item-rate contracts. Common sub-types: DSR (Delhi), SSR (State Schedule of Rates), BSR (Basic Schedule of Rates), CSR (Common SR), HSR (Highway SR), IRUSSOR (Indian Railways USSOR).
Frequently asked
What is the full form of SOR?
SOR = Schedule of Rates (Government rate book). Generic name for any government rate book — used by every State PWD, Railway, Highway, and Municipal body.
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.