DI04006021 · Semester 4 · 5G scheme
Estimation & Costing
Notes and solutions following the Gujarat Technological University (GTU) syllabus for DI04006021. Independent material — not issued by the university.
Materials
Complete Book
The whole syllabus, unit by unit, written for the exam.
Complete Book
133 pages
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PYQ Solutions
Past university papers, fully solved.
Solved past papers — detailed answers
25 pages · English + ગુજરાતી
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Syllabus units
Unit 1: Fundamentals of Estimating and Costing
- Estimating and Costing- Meaning, purpose, Administrative approval, Technical Sanction and Budget provision.
- Classification of estimates- Approximate and Detailed estimate.
- Types and Uses of Estimates: Revised estimate, Supplementary estimate, Repair and maintenance estimate, renovation estimate.
- Approximate estimate- Definition, Purpose.
- Methods of approximate estimate - Service unit method, Plinth area rate method, Cubical content method, Typical bay method, Approximate quantity method (with simple numericals)
- Approximate estimate for roads, Railways, bridges/culvert, irrigation projects and water supply projects.
- Roles and responsibility of an Estimator.
- Checklist of items in load bearing and framed structure.
- Standard formats of Measurement sheet, Abstract sheet, Face sheet.
- Modes of measurement and desired accuracy in measurements for different items of work as per IS: 1200 - Earthwork, Brickwork, Concrete work, Stone work, Roof work, Floor work, Plastering, Doors and windows, Wood work, Streel work, Whitewashing and distempering, Painting, etc.
- Rules for deduction in different category of work as per IS: 1200 - Opening for masonry work, Deduction for lintels over openings Deduction for plastering
Unit 2: Specifications of civil engineering works
- Importance and types specification
- Principles of writing specification
- Description / specification of items of building work as per PWD/R&B - Earthwork, Brickwork, Concrete work, Stone work, Roof work, Floor work, Plastering, Doors and windows, Wood work, Streel work, Whitewashing and distempering, Painting, etc.
Unit 3: Detailed Estimate
- Detailed Estimate - Definition and Purpose, Data required for detailed estimate- Civil cost, GST, Contingencies, Supervision charges, Agency charges, Procedure for preparation of detailed estimate- Taking out quantities and Abstracting.
- Methods of Detailed Estimate- Unit quantity method and total quantity method (with simple numericals)
- Longwall and Short wall method, Centre line method.
- Bar bending schedule for footing, column, beam, Lintel, chajja and slab elements
- Provisions in detailed estimate: contingencies, work charged establishment, percentage charges, water supply and sanitary Charges and electrification charges etc.
- Prime cost, Provisional sum, Provisional quantities, Bill of quantities, Spot items or Site items.
Unit 4: Estimate for Civil Engineering Works
- Earthwork- Quantities for roads, Embankment and canal by- Mid sectional area method, mean sectional area method, Prismoidal and trapezoidal formula method.
- Detailed estimate for septic tank, Community well.
- Use of computer / softwares / programmes for detailed estimate Preparation of Civil Engineering Works
Unit 5: Rate Analysis
- Rate Analysis: Definition, purpose and importance.
- Lead (Standard and Extra), lift, overhead charges, water charges and contractors' profit,
- Procedure for rate analysis
- Task work- Definition, types. Task work of different skilled labour for different items.
- Categories of labours, their daily wages, types and number of labours for different items of work.
- Transportation charges of materials- Lead and Lift, Hire charges of machineries and equipments.
- Preparing rate analysis of different items of work pertaining to buildings and roads considering sustainable materials - Earth work, Concrete work, RCC work and First class brick work.
About this course
Accurate estimation helps engineers figure out the total construction cost, wisely allocate resources, and set realistic budgets-essential steps before any project starts. In construction, a cost are shaped not just by material specification but also by equipment rentals and labor charges, so carefully calculating quantities and creating clear specifications is key to keeping expenses under control and avoiding surprises. As green building practices become more common, knowing how to estimate the costs of sustainable materials and methods is increasingly valuable. Additionally, using estimation software streamlines the process, improves accuracy, and makes it easier to update budgets as project details change. This course equips diploma civil engineers with hands-on skills in all these areas-traditional estimating, green building costing, and software tools-so they're ready for the challenges of today's construction projects.