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With BIM quantity take-off can be conducted almost automatically given that the type of materials, their quantity and price is included in the model. [2] It is known that construction projects often run overtime and over budget and one of the reasons is lack of accuracy in quantity takeoff and estimates.
As a result, commercial cost estimating software applications were originally created to overcome these errors by using hard-coded formulas and data structures. Other benefits include the use of reference to cost databases (aka "cost books") and other data, predictable and professional looking reports, speed, accuracy, and overall process ...
Additional documentation may accompany the estimate, including quantity takeoff documentation and supporting calculations, quotes, etc. Although the pursuit of cost estimate accuracy should always be encouraged, a study in 2002 found that the estimates used to determine whether important infrastructure should be built were "highly and ...
Quantity is a property that can exist as a magnitude or multitude. For example 1200 mm or 10 each. Quantity surveyor (QS) is a professional working within the construction industry concerned with building costs, in the U.K. and some other areas. A QS employs standard methods of measurement to develop a bill of quantities.
A bill of quantities is a document used in tendering in the construction industry in which materials, parts, and labor (and their costs) are itemized.It also (ideally) details the terms and conditions of the construction or repair contract and itemizes all work to enable a contractor to price the work for which he or she is bidding.
A quantity surveyor (QS) is a construction industry professional with expert knowledge on construction costs and contracts.Qualified professional quantity surveyors can be known as Chartered Surveyors (Members and Fellows of RICS) in the UK and Certified Quantity Surveyors (a designation of the Australian Institute of Quantity Surveyors) in Australia and other countries.
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A building estimator or cost estimator is an individual that quantifies the materials, labor, and equipment needed to complete a construction project. Building cost estimating can concern diverse forms of construction from residential properties to hi-rise and civil works.