Department Of Construction Management BCN 3611 Construction

Dept Of Construction Management Bcn 3611 Const Cost Estimating I

Prepare a professional bid proposal for constructing a one-story single-family house (MAKU Residence), approaching the assignment from a construction contractor's perspective. The proposal should include reading and understanding plans, recognizing construction work items, surveying quantities, using cost databases, estimating indirect and total costs, and presenting a comprehensive cost estimate following the CSI MasterFormat® (2004 Edition). Use the R.S. Means Online website for cost data, complete clear assumptions for missing information, organize the proposal per project plan items, and provide detailed takeoff calculations and summaries in both PDF and Excel formats. The submission will be evaluated based on organization, comprehensiveness, accuracy, and appropriateness of cost data, covering all relevant construction divisions, including general requirements, concrete, masonry, metals, wood, thermal protection, openings, finishes, equipment, earthwork, and exterior improvements.

Paper For Above instruction

Construction cost estimation for residential projects is a critical component of project planning and bidding, requiring a systematic approach to ensure accurate, competitive, and profitable proposals. This paper discusses the process and considerations involved in preparing a detailed bid proposal for a single-family residence, specifically the MAKU Residence, as outlined in the project assignment. It covers understanding project plans, recognizing scope items, accurate quantity takeoff, application of cost databases, inclusive costing, and organizing the estimate to conform with industry standards such as the CSI MasterFormat®.

In approaching this project, a construction contractor embarks on a multidisciplinary process that integrates technical evaluation, detailed surveying, and cost analysis. First, thoroughly reviewing the project plans and specifications enables the estimator to identify all scope elements, from foundational work to finishing. Essential to this phase is recognizing the division of work according to the CSI MasterFormat® (2004 Edition), which provides a standardized organizational structure for estimating and bidding. For the MAKU Residence, divisions such as general requirements, concrete, masonry, metals, wood, thermal protection, openings, finishes, equipment, earthwork, and exterior improvements are relevant.

Recognizing each scope item involves a meticulous survey or quantity takeoff, where each part of the construction is measured or calculated based on the project's drawings and specifications. For example, foundation areas, concrete volumes, reinforcement steel quantities, and wall dimensions are precisely computed. This data forms the basis for the cost estimate, which incorporates material, labor, and equipment costs. During this phase, the estimator must also make justifiable assumptions to fill any gaps in information, clearly documenting these in the proposal to maintain transparency.

The next critical step involves sourcing current cost data for each construction item, primarily through the R.S. Means Online database, which offers comprehensive unit costs for materials, labor, and equipment. This ensures the estimate reflects market conditions and regional averages. For example, the costs for concrete, reinforcement steel, formwork, masonry units, and framing components are derived from this database. The cost estimate then combines these unit costs with the quantities taken off to produce itemized costs for each scope element, summarized at division levels for clarity and organization.

Beyond direct costs, estimating indirect costs such as general conditions, overhead, and profit margins is essential. These are typically calculated as a percentage of the total direct costs or as specific line items, ensuring the overall bid is comprehensive and realistic. In addition, assumptions regarding project duration, productivity rates, and market fluctuations are detailed explicitly to provide context and rationale.

Organizing the proposal according to the CSI MasterFormat® facilitates clear communication of scope and costs to project stakeholders. Each division includes a summary of work items, calculated costs, assumptions made, and detailed quantity calculations. For example, under Division 03: Concrete, the proposal would specify quantities of formwork, reinforcement steel, and concrete volumes, along with unit costs and total costs. Similarly, other divisions address respective work elements, systematically combining data into comprehensive cost summaries.

Presentation quality and clarity are paramount, with calculations neatly organized, comments explaining methodologies, and assumptions justified. Visual aids such as spreadsheets complement the PDF proposal, providing transparency and facilitation for review and validation.

In conclusion, effective construction cost estimation for residential projects demands a disciplined, detail-oriented approach grounded in accurate quantity surveying, reliable cost data, and standardized organization. When executed properly, it results in competitive bids that balance profitability with market competitiveness, ultimately contributing to successful project delivery.

References

• Benjamin, C., & Blanchard, T. (2014). Construction Cost Estimating. Wiley.
• Krazner, K. (2013). Estimating Construction Costs. R.S. Means.
• Gray, C., & Hughes, W. (2013). Construction Planning, Equipment, and Methods. Wiley.
• Eastern Region Organization of the Construction Specifications Institute. (2004). MasterFormat® 2004 Edition.
• R.S. Means Company. (2023). Costs Data and Construction Cost Estimation Manuals. R.S. Means.
• Florida International University. (2019). Construction Management Course Materials.
• Firth, G., & Lilley, J. (2015). Estimating and Cost Planning for Construction. Wiley.
• Hendrickson, C., & Au, T. (2004). Project Management for Construction. Prentice Hall.
• Levine, H. (2017). Construction Estimating Manual. McGraw-Hill.
• Cheng, A. H.-S., & Hamid, R. (2018). Advanced Construction Cost Estimation Techniques. Elsevier.