Quantity takeoff example upgrade#
Quantity takeoff example series#

Many work items measured in a quantity takeoff do not involve materials at all.

For example, Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ў100 cubic yards of 3000 psi concreteР В Р вЂ Р В РІР‚С™Р РЋРЎС™ may be adequate for a materials takeoff, but information about what the concrete is to be used for is required in a cost estimate takeoff.

A materials takeoff also rarely includes sufficient information for actual pricing.

In cost estimate quantity takeoffs, measurements are made Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ў net in placeР В Р вЂ Р В РІР‚С™Р РЋРЎС™ whereas materials takeoffs measure gross quantities.

3 Differences between Materials Takeoff and Quantity TakeoffР В РІР‚СњР В РІР‚С› materials takeoff, used to calculate the quantity of materials that needs to be purchased in order to construct a particular item of a project, differs from a quantity takeoff for a cost estimate in three substantive ways: The confusion regarding quantity takeoff stems from the fact that takeoffs are often referred to in the industry by many names, and these names are used interchangeably even though they can refer to different things:Р В РІР‚СњР В РІР‚РЋor example, although materials takeoff and quantity takeoff are most often treated in the industry as identical processes, theyР В Р вЂ Р В РІР‚С™Р Р†РІР‚С›РЎС›re actually two different processes that should be distinguished from each other.

Quantity takeoff example series#

In fact, according to expert David Pratt, in his detailed analysis of the term in the Fundamentals of Construction Estimating, a quantity takeoff is actually the process of measuring the work of a project in the form of a series of quantified work items, which includes both labor and materials.

But a quantity takeoff is actually not the process of estimating materials directly. For example, many assume a quantity takeoff refers only to estimating materials or that the process simply consists of reviewing a set of project plans and then quantifying information about the physical materials the architect, engineer, or draftsperson specifies to build the project. While performing a quantity takeoff, estimators Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ўtake offР В Р вЂ Р В РІР‚С™Р РЋРЎС™ information from common contract documents: including architectural drawings, structural engineering drawings, plumbing drawings, site water reticulation and drainage drawings, electrical drawings, and HVAC drawings.Р В РІР‚СњР вЂ™Р’Вespite the fact quantity takeoffs are so common in the industry there is still some confusion over what the process entails.

The term takeoff actually evolved from the phrase Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ўtaken off,Р В Р вЂ Р В РІР‚С™Р РЋРЎС™ which loosely translates to Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ўmeasured.Р В Р вЂ Р В РІР‚С™Р РЋРЎС™ Only by taking the information Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ўoffР В Р вЂ Р В РІР‚С™Р РЋРЎС™ documents can estimators convert information from drawings into a list of items with quantities that can be measured. In practice, however, a construction quantity takeoff is a term commonly used in the industry to describe one of its most essential functions: the process by which a cost estimator reviews a set of plans during preconstruction in order to Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ўtake offР В Р вЂ Р В РІР‚С™Р РЋРЎС™ measurements from these plans to forecast construction costs. Learn the Best Method to Produce an Accurate Quantity Takeoff What Is a Construction Quantity Takeoff?Р В РІР‚СњР В РІР‚С›ccording to the Dictionary of Construction Terms, a construction quantity takeoff, in theory, is Р В Р вЂ Р В РІР‚С™Р РЋРЎв„ўthe estimation of quantities for a contract from plans and drawings which are then recorded in the bill of quantitiesР В Р вЂ Р В РІР‚С™Р РЋРЎС™ (305).

3 Primary Takeoff Methods: Manual, Digital, and Estimating Service.

What Is Measured in a Quantity Takeoff and How Is it Measured?.

What Is a Construction Quantity Takeoff?.

Learn the Best Method to Produce an Accurate Quantity Takeoff.

There are many factors which affect the required balance since each and every project is unique. As you can see, the volume of excavations in this type of construction is not necessarily equal to the volume of total filling. If material from site excavations is not enough to fill the embankments, the engineer may order the contractor to import filling elsewhere. This filling is mechanically compacted to the required AASHTO density in layers not exceeding 300mm. As much filling as possible must be obtained from the excavations. The excavated material is deposited down the slope in the valleys to create manmade formations known as embankments. How much earth requires to be cut from the slope depends on the elevation of the proposed road, its width and gradient of the hill slope. Vehicles are capable of moving on this road as if they are on flat ground, although the road may be at higher elevation than normal ground. The purpose is to cut the slope to create a surface that is level or parallel with the sea level. When building a road across a hill slope, open face excavation is required.

Quantity takeoff example upgrade#

Roads on Hillside Slope in Ladd Canyon, Oregon, USA Р В Р вЂ Р В РІР‚С™Р Р†Р вЂљРЎС™ Upgrade of the I-84 Fish Passage Р В Р вЂ Р В РІР‚С™Р Р†Р вЂљРЎС™ Photo Credits Р В Р вЂ Р В РІР‚С™Р Р†Р вЂљРЎС™ Oregon Department of Transport