quantity takeoff example

The values for Quantity Take-Off Methods are typically measured and calculated by building construction estimators using the … Types of Material: The list contains every kind of material for example wood, steel, concrete etc. www.quantity-takeoff.com Estimate Take-off Sheet Company: Estimator: Date: Project: Checked by: Date: Address: Estimate due: Job: Estimate #: CSI Division/Account: Drawing reference: Q = L = W = D = T = H = Total/ Description Qty Length Width Depth Thickness Height Calculation Unit 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.
Measuring by assembly avoids needless repetition and actually speeds up the process because no time is wasted reassessing the component, repeating the dimensions and possibly recalculating these same dimensions several times. The basic takeoff process is as follows:Lynn Langmade currently manages content at 1build where she develops content strategy, sets the editorial calendar, and oversees content production workflow. To prepare the takeoff, an estimator has to break down the design shown on the drawings and described in the specifications into predefined activities or work items that correspond to the operations the contractor will perform to complete the work of the project. However, unlike cost estimating services reviewed below, takeoff software can be expensive and also time-consuming to learn and master. Many cost estimators also maintain a catalog of standard items representing activities that will be encountered on a large variety of projects, but it’s not uncommon to have to take on a new category of work unique to a particular project. With more accurate quantity takeoffs, a team’s rapport and confidence improve, as well as relationships with vendors and clients.

Example of a Quantity Take-off: Retaining wall: 4'-0" x 75'-0" = 300 sf CMU Block: 1 block = 8" x 16" = .88 sf Total block needed for wall: 300 sf / .88 sf = 341 blocks for the wall Note: we only care about the square footage because the width of the wall is determined by the block. We recommend cost estimators use separate worksheets for the takeoff and the recap portion of the cost estimate to make pricing more efficient. As we’ve already noted, a detailed estimate begins with a quantity takeoff.

Weight of Material: It sometimes also has weight of material like steel etc..
In these instances, an estimator should divide the project into smaller more manageable parts and then consider one part of the project at a time. So the green coloured area should be deducted once from the measurement when takeoff quantity.

The catalog of standard work items is often used as a checklist during the takeoff process, especially by junior estimators to ensure all the general categories of work have been factored into the estimate. The third and newest method for developing a quantity takeoff is enhanced cost estimating services, which combines the power of artificial intelligence with experienced estimators to provide the benefits of both manual and digital methods for takeoffs.Here we briefly describe three primary methods for creating a quantity takeoff: manual, digital, and estimating service:The detailed estimating method outlined above is far more likely to produce a price that accurately forecasts the actual costs of building a construction project than just a quantity takeoff, but the quantity takeoff provides the necessary foundation for an accurate work assessment and this accuracy can only be achieved if the project owner provides an estimator with a defined scope of work in the form of drawings and specifications. 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:For example, although materials takeoff and quantity takeoff are most often treated in the industry as identical processes, they’re actually two different processes that should be distinguished from each other.There are obvious downsides to preparing a quantity takeoff manually, which include a lag time when procuring the physical plans in order to start the takeoff process, the wasted time when having to manually enter measurements onto a paper worksheet or software program, and finally reduced accuracy. One downside to a tablet digitizer is that due to the enormous size of the drawings needed to be scanned, a cost estimator may need to use a tablet as large as 42” by 60” to ensure all drawing information is accessible at once.

This method is described as follows,“ + “ walls / cross walls –  Wall breath measurement should be deducted to the total length of centreline.Here, the green coloured area will be calculated twice when takeoff quantity. Project Planning A.

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