In a logical order, these documents refer to the following subjects:Cost Estimating 21 Dr. QuickAreas is a handy add-in for Autodesk® AutoCAD® that retrieves the area property of multiple polylines and inserts a label with its associated area value. HVAC estimating sheet is very useful for HVAC engineer & Ductwork contractors who mainly work in the commercial piping, plumbing and ductwork industry. The material quantity takeoff is extremelyimportant for cost estimating because it often establishes the quantity and unit of measurefor the costs of labor and contractor’s equipment.2.1.1 Contract documentsThe contract is defined by the contract documents, which are developed from the tenderdocuments. Autodesk Quantity Takeoff 2012: GeneralCOST Estimator Video Tutorial: ExtrAXION Quantity Takeoff Software Demo 1 : Quantity Survey / Estimate / Take off. Theestimator must, also, add an appropriate percentage for waste for those items where wasteis likely to occur during construction. ![]() them to display on the canvas, although they retain their hidden status on the Takeoff Palette. ![]() Objects that are hidden on the canvas or Takeoff palette can be cut, copied, or deleted. Estimate product quantities, generate cut sheet and seam diagrams. A wellorganizedcheck-list of work will help reduce the chances of omitting an item. It allows catalog assignments to be made automatically during model takeoffs. Easy-to-use, cloud-based takeoff and estimating software for construction contractors. Each estimator must develop a system ofquantity takeoff that ensures that a quantity is not omitted or calculated twice. ![]() The estimate contingencies for programming purposes reflect theestimate confidence.2.1 Importance of Quantity Takeoff and Required DocumentsThe quantity of material in a project can be accurately determined from the drawings.The estimator must review each sheet of the drawings, calculate the quantity of materialand record the amount and unit of measure. An accurate and complete estimate establishesaccountability and credibility of the cost engineer, therefore, providing greater confidencein the cost estimate. Accuracy and completeness arecritical factors in all cost estimates. Use ofappropriate automation tools is highly recommended. ![]() It must be as accurate aspossible and should be based on all available engineering and design data. CHAPTER 2QUANTITY TAKE-OFFThe quantity “takeoff” is an important part of the cost estimate.
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