Understanding Work Charged Establishment in Estimates

When preparing cost estimates for construction projects, various expenses are factored in. One such expense is related to the work charged establishment. This refers to the temporary staff employed directly on a specific work or project, whose salaries and allowances are charged directly to the cost of that work.

Examples of work charged establishment staff might include temporary overseers, work supervisors, skilled labourers specifically hired for the project duration, and clerical staff engaged only for the project's administrative tasks at the site office.

Unlike the permanent establishment (staff whose salaries are paid from the general budget regardless of specific projects), the cost of the work charged establishment is a direct project expenditure and is therefore included in the project estimate.

Percentage Allocation for Work Charged Establishment

Standard practices and departmental rules often specify a certain percentage of the total estimated cost of the work that can be allocated for the work charged establishment. This percentage is intended to cover the salaries and related costs of the temporary staff needed to execute the project efficiently.

Different organizations or regions might have slightly different percentages, but there are common ranges used in practice. The question asks for a specific percentage of the cost of the estimate provided for the work charged establishment.

Based on common engineering estimation practices, the percentage allocated for the work charged establishment is typically kept low to ensure that the majority of the budget is spent on materials, labour (other than work charged), and other direct project costs.

Analysing the Given Options

Let's look at the provided options for the percentage of the cost of the estimate for the work charged establishment:

• 2%
• 8%
• 10%
• 15%

Considering standard practices for estimating construction costs, allocating a significant percentage like 8%, 10%, or 15% purely for temporary staff (work charged establishment) would be unusually high and would inflate the project cost considerably relative to the direct costs of construction like materials and labour for execution.

A percentage of 2% is a reasonable and commonly adopted figure for the work charged establishment in many engineering departments and construction estimates. It accounts for the necessary temporary site supervision and management staff without becoming a disproportionately large part of the total project cost.

Therefore, the percentage of the cost of the estimate provided for the work charged establishment is typically 2%.

Revision Table: Key Estimation Terms

Additional Information: Components of a Cost Estimate

A detailed cost estimate for a construction project typically includes several components:

• Cost of Materials: Expenses for all construction materials.
• Cost of Labour: Wages for skilled and unskilled workers involved in construction (excluding work charged).
• Cost of Tools and Plants: Rental or depreciation cost of machinery and major equipment.
• Work Charged Establishment: Salaries for temporary site staff directly involved in the work.
• Contingencies: A provision for unexpected costs or variations.
• Supervision Charges / Departmental Charges: Overhead costs related to the executing agency's expenses.
• Contractor's Profit: The margin added by the contractor.

Each of these components is estimated based on quantities, rates, and standard percentages or rules to arrive at the total estimated project cost. The percentage for work charged establishment is one specific part of this comprehensive estimation process.