Feb 21, 2018 taking off measuring of quantities in which the dimensions are scaled or read from drawings and entered in a recognized form or specially ruled paper, called dimension paper. The quantities for the works form the basis of the contract sum and are not subject to remeasurement. Substructure takingoff involves all measurement work up to and including. Also list the type of construction equipment needed for each phase.
Aug 27, 2017 quantity take off and construction estimating with costminer duration. Quantities refers to the estimated amounts of labour and materials required in the execution of the various items of the work and together these items. Pdf empirical models for predicting reinforced concrete. Quantities of items that are taken off of the component are listed in the subsequent columns. Services roof and ceiling take off sheets in a roof estimating sheet the estimator will get the roofing costs and calculate the estimate of total roof work. Material takeoff week 3 cee4333 agenda earthwork excavation concrete foundation wall excavation site excavator loader 118 horsepower 710g, 22. Taking off measurements and estimating the project quantities are timeconsuming, but it is required to be done. The base comprises the forces and relations of production e. Internal partitions, suspended slabs, finishes etc. Oct 02, 2017 finally multiply them to find out the necessary quantity, long wall outtoout or short wall intoin x breadth of wall x height. Substructure taking off involves all measurement work up to and including the dampproof course. Composite rate build up internal walls superstructure the elemental estimate layout and grouping of items will be used in this example. Services roof and ceiling takeoff sheets in a roof estimating sheet the estimator will get the roofing costs and calculate the estimate of total roof work. Also, the building owner must finance the cost of construction and needs to know exactly what his financial commitment is likely to be.
The term taking off refers to the process of identifying elements of construction works that can be measured and priced. On may 1st, professor charmaine gauci, the superintendent for public health authorised the reopening of vrt stations. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. It includes a variety of trades such as clearing site, top soil removing, excavation, concrete work and masonry works.
Material takeoff michigan technological university. When taking off quantities, break each item down by size, type of material, and workmanship. Quantity survey, taking off quantities for top soil. Methods of takeoff quantities explanation with solved problem.
This book provides a thorough understanding of the general principlesof measurement for taking off quantities. Practical projects taking off, abstracting and billing. During the contract period, measurement is required for provisional quantities and valuation of variations only see section 10 of pah chapter 5. Taking offpricing notes taking offpricing notes are guidelines to assist the estimator in the taking off and pricing stages of an estimate. Taking off construction works designing buildings wiki share your construction industry knowledge. When taking off strip footings, for example, the associated items include structural excavation, concrete, formwork, backfill, and disposal appropriate units of measure, such as cubic yards of concrete, square feet of forms, and linear feet of pour. Production rates for manual and mechanical excavation in light, medium. This is necessary to produce bills of quantities and requires that the design is complete and a specification has been prepared. May 06, 2018 to prepare an unpriced bill of quantities for substructure work only. Taking off in the first step of taking out quantities, the measurements are taken off from the drawings and entered on measurement sheet or dimension paper. Quickscale pdf takeoff how to use the calibration tool to find exact scale in order to extract quantities from an architectural digital drawing or plan, you have to use onscreen digital takeoff software. The constructions after the foundations are of the superstructure.
Quantity take off roofing roof material quantity take off are pretty easy trig problems, but i will go over it quick to make sure you get it, because most likely a question will be on the pe exam. Atkinson december 2000 nature of bills bills of quantities comprise a list of items of work which are briefly described. Prepare a bill of quantities strictly in accordance with asmm5 for the substructure and superstructure of qshouse as per drawings and specifications provided. Example taking off for substructure measurement conventions isurv. How to take off construction works designing buildings wiki. However, in order to fully understand and appreciated the potential problems in the measurement process a thorough knowledge of measurement conventions is essential. How to take off construction works designing buildings wiki share your construction industry knowledge. Nov 30, 2012 taking off quantities for top soil duration. Takingoff measurements and estimating the project quantities are timeconsuming, but it is required to be done. This process known as booking dimensions or takingoff quantities involves the measurer in either reading or scaling dimensions from. Pdf introduction to quantity surveying laki emmanuel. The bill of quantity is a document which contains a complete analysis of. Take off quantities for the following items of substructure in the drawings attached.
Quantity surveying page 2 of 83 of the standard method of measurement and price by the builder. Make necessary assumptions where there is not enough information and. Cost cost is the cost of an element and is the aggregate of the component costs comprising the particular element. To find the length of excavation be careful to fully understand what the given dimension are measuring. In the given below diagram, the green coloured layers are long walls and other layers represent the short walls. In the first portion of this chapter six common types of bridge decks are dealt with, each having particular features which need to be considered and monitored. Quantity takeoff and construction estimating with costminer duration.
Architectural plans are usually shared in pdf format, one of the most widely used files, and also the fact that most continue reading. An essential guide to any quantity surveyor, architect or engineer taking off quantities. The bill of quantities boq is defined as a list of brief descriptions and. Taking off construction works designing buildings wiki. Sep 12, 2015 taking off measurement is called the process of recording dimensions in a standard way which is accepted by construction professionals.
When thinking of roof problems you just need to worry about three things. These quantities when collected together into a bill, form a bill of quantities. Besides the estimator can compare prices per sq ft for different roofing materials. To prepare an unpriced bill of quantities for substructure work only. Spacers quantity take off rules for estimating the quantitties of spacers and rebar chairs superstructure and foundation beams. Taking off measuring of quantities in which the dimensions are scaled or read from drawings and entered in a recognized form or specially ruled paper, called dimension paper. Finally multiply them to find out the necessary quantity, long wall outtoout or short wall intoin x breadth of wall x height. We are going to illustrate a composite rate buildup for internal walls. Takingoff measurement is called the process of recording dimensions in a standard way which is accepted by construction professionals. The quantification process involves recording dimensions and is referred to as. Taking off processes and preparation of an unpriced bill of. The pdf files should be compiled as readonly and may also contain indexes, bookmarks and can be searched by word or phrase to make navigation through the specifications easier.
This book provides a thorough understanding of the general principles of measurement for taking off quantities. Thus, anyone whose vehicles licence expired after march and april 2020 and the vehicle in. The word superstructure is a combination of the latin prefix, super, meaning. This process known as booking dimensions or takingoff quantities involves the measurer in either reading or scaling dimensions from the drawings. Code the code is the numerical identification for each element of component. Building quantities take off for foundations, frames and finishes 3.
Accurate quantities have to be measured from the fully completed design in the precontract stage. The measurements to be taken out would depend upon the unit of measurement. Mace have taken these principles and developed a more detailed sequence based on logistical constraints and their construction. When building up composite rates for approximate quantities, you have to follow. Costminer online takeoff and estimating 7,019 views. Building quantities takeoff for foundations, frames and finishes 3. Here is a list of substructure taking off according to smm7. The pdf files can be loaded in the background with the drawings and accessed quickly as the takeoff is. A quantity surveyor may take off quantities from detail drawings to produce a bill of quantities for tendering purposes.
Taking off measuring of quantities in which the dimensions are scaled or. The scope of this work is limited to the processes that are involved in taking off and preparing an unpriced bill of quantities for building work but excluding the abstracting, unpriced bill of quantities and service for super structural work. Taking off quantities is a key skill demanded of a quantity surveyor. How to measure distances and areas in pdf documents foxit. Spacers quantity takeoff rules for estimating the quantitties of spacers and rebar chairs superstructure and foundation beams. The arrow mark on the green layer shows how the length of a long wall should be measured out. Use of appropriate automation tools is highly recommended. Start the quantities takeoff for the category of construction work selected to be done in house most often site work, foundations, and concrete work. Teaching paperless detailed quantity takeoff and estimating. Jun, 2019 taking off construction works designing buildings wiki share your construction industry knowledge. Accuracy and completeness are critical factors in all cost estimates.
Chapter 2 quantity takeoff the quantity takeoff is an important part of the cost estimate. Walls superstructure approximate quantities in elemental estimate layout. Although this is a straightforward substructure layout which would be suitable for a garage or similar nonhabitable outbuilding, the task required the candidates to take off the complete substructure. The advantages of a bill or quantities are as follows. Most measurements read off architects and engineers drawings are of a. Submit all taking off sheets hand written as an appendix to the bq. When building up composite rates for approximate quantities, you have to follow some basic principles. Example taking off for substructure measurement conventions. The constructional deviation does not affect the support rebars 1 and 2, which will be formed with a total length equal to 1. It must be as accurate as possible and should be based on all available engineering and design data. The bills also provide a measure of the extent of work and this allows the work to be priced. This work is licensed under a creative commons attribution noncommercialshare alike 3. Basement hole bulk excavation section of basement with foundation footing basement hole and first floor. Today, the majority of bills of quantities are produced using proprietary software packages, each system having its own format for inputting dimensions and.
Quantity takeoff roofing roof material quantity takeoff are pretty easy trig problems, but i will go over it quick to make sure you get it, because most likely a question will be on the pe exam. Foxit phantompdf makes it easy to measure distances and areas of objects in pdf documents with our measure tools these tools are especially useful when youre creating manuals, instructional guides, forms, and computeraided design drawingsor when you want to measure areas of any document before sending to a professional printer. Today, the majority of bills of quantities are produced using proprietary software packages, each system having its own format for inputting dimensions and formulating descriptions. Material take off week 3 cee4333 agenda earthwork excavation concrete foundation wall excavation site excavator loader 118 horsepower 710g, 22. Taking off pricing notes taking off pricing notes are guidelines to assist the estimator in the taking off and pricing stages of an estimate.
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