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Preparing to Build

Preparing to Build. Estimating and Scheduling. Cost to build a house Profitability Underestimating Overestimating Bid Competitive bidding. Estimating. Estimators must: Read and measure building plans accurately. Excellent understanding of local building codes.

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Preparing to Build

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  1. Preparing to Build Estimating and Scheduling

  2. Cost to build a house Profitability Underestimating Overestimating Bid Competitive bidding Estimating

  3. Estimators must: Read and measure building plans accurately. Excellent understanding of local building codes. Be precise in assembling and computing numerical data. Estimating continued

  4. Pre-Design Estimate Quantity Takeoff Unit-Cost Estimate Types of Estimates

  5. Board Foot If all numbers are in Inches take Pieces x Thickness x Width x Length Divide by 144 If length is in feet take Pieces x Thickness (in.) x Width (in.) x Length (ft.) Divide by 12 Calculating Board Feet

  6. Advantage: provide early cost estimate w/o forcing client to make difficult product choices. Disadvantage: may be unrealistically low. Client may be surprised by large expenses late in process. Contingency allowance Allowances

  7. Direct costs Indirect costs Types of Costs

  8. Construction-Order Checklist CSI MasterFormat Checklist Checklists

  9. Material Suppliers Prior bids Pricing Guides – SWEETS Files Databases – available on the internet Sources for Cost Information

  10. Material Scheduling Activities Scheduling Scheduling

  11. 1st load – items to complete up to and including subfloor 2nd load – wall framing & ceiling joists 3rd load – roof framing materials and roof coverings (may require crane to lift trusses) 4th load – exterior doors, windows, exterior trim, & siding as needed. Drywall, tape, joint compound, paint 5th load – hardwood flooring & underlayment materials 6th load – interior doors, trim, & built-in cabinet materials Material Delivery Order

  12. Survey Permit Excavation Temporary power Temporary water Foundation Plumbing Slabs Framing Backfilling 11. Mechanicals 12. Windows & doors 13. Roofing & siding 14. Insulation 15. Interior & exterior finishes 16. Finish carpentry 17. Exterior paining 18. Finish grading 19. Concrete driveways & sidewalks General Steps in House Construction Activity Schedule

  13. 20. Landscaping 21. Interior painting 22. Floor coverings 23. Finish electrical 24. Finish plumbing 25. Wood flooring 26. Carpeting 27. Cleanup 28. Punch list Steps continued

  14. Bar Charts Critical Path Diagrams Staying on Schedule

  15. Review • Why is it important for estimates to be as accurate as possible? • An estimator must have three specialized skills. What are they? • Name and describe the three basic types of estimates. • What is an allowance? • What is an indirect cost? • List at least three sources estimators use to gather information about costs.

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