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Data required for detailed estimate

Short answer

A detailed estimate needs complete drawings, specifications of materials and workmanship, rates from District Rates and DUDBC norms with rate analysis, item-wise quantities, site data, provisions for contingency and taxes, and contract conditions.

List out the data required for the detailed estimate of any construction project.

The data required for a detailed estimate are:

  1. Drawings: plans, elevations, sections, foundation and structural details, and door, window and finishing schedules, with dimensions.
  2. Specifications: the quality and standard of materials and workmanship of each item (mix proportions, grade of concrete and steel, brick class, finish).
  3. Rates: District Rates, the DUDBC norms (consumption of materials and labour per unit of work), and the rate analysis of each item, including transport (lead) and overhead.
  4. Quantities: item-wise measurements, taken out by a standard method (long wall-short wall or centre line) with units as per IS 1200 / Nepal practice.
  5. Site information: soil condition, water table, location of material sources and lead, availability of labour and water.
  6. Provisions and taxes: contingency, work-charged establishment, VAT (13%), and price adjustment as applicable.
  7. Time and contract conditions: the construction period and the conditions that affect the cost.

✓ Answer checked by Claude Opus 5.5 (high effort)

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