Extra over item in bill of quantities pdf

The estimator then places rates alongside this total quantity arriving at a price for each item in the bill. Approximate quantities method of estimating measurement. The word percent is an abbreviation of the latin phrase per centum which means per hundred or hundredths. Atkinson december 2000 nature of bills bills of quantities comprise a list of items of work which are briefly described. Feb 17, 2020 a bill of quantities is a list of the total materials required to complete a construction project. The nature of this contract is measured unit price contract and the bill of quantity boq shall reflect this fact. As mentioned by hussein 2009, the bq have been proposed in the year of 1774 by thomas skaife, purposely for pricing tenders based on designer drawings in order to know the cost of a completed project before the construction projects. Excavate in all materials other than rock within the jacked pipes, including cleaning inside the jacked pipes ready for subsequent pipe laying works to s. The bills of quantities shall be priced as described in the solicitation documents. Civil engineering work civil engineering work encompass a wide range of different types of activities such as mass excavation, embarkment filling, piping schemes, harbor works, roads, canals, tunnels, drains and railway lines etc. The units of measurement indicated in the bill of quantities are metric units.

Use of appropriate automation tools is highly recommended. The bills of quantities are a complete quantification of all. Extra over eo is a term that is often used when taking off for a bill of quantities boq. As described in the bills of quantities where applicable. Taking off is the process of identifying elements of construction works that can be measured and priced. The following abbreviations may appear in the bill of quantities. Method of measurement for highway works contents introduction chapters i, ii and iii item coverage extra over items remove from store and reerectreinstallrelay hard material dayworks testing modification and new materials. Concrete 4 m3 f integrity testing of piles g set up costs for integrity tests item h allow to carry out integrity tests to piles 150 nr load test i allow to load test 1nr pile provisional item cart away arisings. Comparing quantities class 8 notes maths chapter 8 learn. Vat value added tax is charged on the selling price of an article. Bills of quantities, importance, functions, construction industry. 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.

Sales tax is charged on the sale of an item by the government and is added to the bill amount. Nominated subcontractors clause 20 in addition to the provisions of subclause 20. If the one extra bend is required the additional sum is simply the extra over rate for the bend. As mentioned by hussein 2009, the bq have been proposed in the year of 1774 by thomas skaife, purposely for pricing tenders. Ce 208 quantity surveying ahsanullah university of. No description of item unit qty amount in rs in figures in words bill of quantities boq schedule of quantities. Bill of quantities bq has existed and developed over 300 years miliken, 1996. When taking off for a boq, the term extra over can be used to refer to items that to a certain extent have already. Esuk2 web sample 2 02 demolitions 01 demolitions ref description quantity units rate value remove existing picket fence and gates. Summary of bill of quantities ministry of environment.

Extra over trench and hole excavations in earth for excavation in 6 dumprock. Preparation of bill of quantities preparation of bill of quantities subdivision of bill of 1 the bill of quantities is to be divided as appropriate into separate quantities levels of identification, in the sequence set down in table 1. Create a spreadsheet for your bill of quantities with columns for the item numbers, descriptions, units of measurement, quantities, rates for each item, labor, and total cost. Unless otherwise stated the description of each item shall be deemed to include manufacturing, conveying and delivering, unloading, storing, unpacking, hoisting, setting, fitting and fixing in position, cutting, waste, patterns. Extra over precast brick catchpit manholes of any type for building in ends of pipes. More detailed information than is required by this document may measurement be given to define the precise nature of work or the circumstances under which it is to be carried out. Pdf bill of quantities with 3d views using building. These quantities when collected together into a bill, form 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. Delivery and installation of preinsulated steel seamless pipes of st. The quantities may be measured in number, area, volume. In simple terms, and using the previous example, if you have items in the bills of quantities for pipes 10 metres and extra over for bends 10 no.

Chapter 2 quantity takeoff the quantity takeoff is an important part of the cost estimate. When taking off for a boq, the term extra over can be used to refer to items that to a certain extent have already been measured. Extraover items should be listed immediately under the main item over which they are measured. The bills also provide a measure of the extent of work and this allows the work to be priced. Feb 12, 2014 civil engineering work civil engineering work encompass a wide range of different types of activities such as mass excavation, embarkment filling, piping schemes, harbor works, roads, canals, tunnels, drains and railway lines etc. Item b electrical installation qty unit price per unit total electrical installation level 2 room ls1. What does the measurement term extra over items mean answers. Item description unit of measure quantity of works unit price usd total construction works preparatory works 1. Dislocating existing installations prior to commencement of any of the bridge demolition works. Extra over eo extra over eo is a term that is often used when taking off for a bill of quantities boq. The bill of quantities is compiled in accordance with the.

When taking off for a boq, the term extra over can be used to refer to items that to a. Bills of quantities for standard residential house 2 bedroom. To submit samples mounted on sample boards for materials for approval. The meaning of extra over by john b molloy, llb hons, bsc hons, fhkis, frics, aciarb managing director, james r knowles hong kong limited when disputes arise and the matter is referred to. General directions and description of work and material given in the technical specification are not necessarily repeated in the bill of quantities. E extra over excavation for excavating in rocksslopes to make up levels irrespective of class 47 cm plunking and strutting f allow for plunking and strutting to uphold the sides of excavations item dewatering g allow for keeping excavated material free from water by either pumping or bailing item. This process known as booking dimensions or takingoff quantities involves the measurer in either reading or scaling dimensions from. Extra over piling for breaking out obstructions encountered during the piling installation. A bill of quantities is a list of the total materials required to complete a construction project. An amount bidded for an item, the extend of which is describe0d in the bill. Youll need this to get an accurate quote for your construction project. Quantity surveying page 2 of 83 of the standard method of measurement and price by the builder.

The approximate quantities method of estimating the cost of a construction project is regarded as the best because its more accurate and more reliable than other methods of estimating. These bills of quantities shall be treated as an addendum to the solicitation document and where any of the conditions or instructions in these bills of quantities. Sometimes, when you are going through a bill, you will encounter an item that has been measured extra over eo, but the estimator does not mention the main item over which the extraover item is measured. Chapter 12 quantities, costs, and specifications 12. This estimate is based on measurement groups where bill items with the same dimensions in metres or square metres are grouped together.

Introduction bill of quantities bq has existed and developed over 300 years miliken, 1996. The advantages of a bill or quantities are as follows. Fuvahmulaku jetty bill of quantities item description unit qty rate total bill no. This process known as booking dimensions or takingoff quantities involves the measurer in either reading or scaling dimensions from the drawings. The prices specified in the bill of quantities covered procurement, delivery and installation for each item of the bill of quantities, unless otherwise described. Notes for guidance on the method of measurement for highway works 1 chapters i, ii and iii chapters i, ii and iii 1 item coverage 1104 item coverages in the mmhw ensure that the contractor knows the items of work to be covered by the rates and prices he inserts against the appropriate items in the bill of quantities. It must be as accurate as possible and should be based on all available engineering and design data. Drainage draft bqs externals printed 23092015 page 11. Section 7 bill of quantities preamble 1 the bill of quantities shall be read in conjunction with instructions to bidders, general and special conditions of contract, invitation for bid, technical specifications and drawings. Accuracy and completeness are critical factors in all cost estimates. Is a term used in a bill of quantities to indicate an extra cost will be incurred for either labour, material or both over an item that has already been measured.

The work included in the item is defined in detail by. The use of table 1, level 4 subheading is optional dependent on. Draft bill of quantities september 2015 drainage draft. The work included in the item is defined in detail by the rules in the method of measurement. Bill of quantities with 3d views using building information modeling article pdf available in arabian journal for science and engineering 409 april 2015 with 5,962 reads how we measure reads.

Preliminaries documents clause 2 the bill of quantities is compiled in accordance with the method described in the standard system for measuring small buildings. E extra over excavation for excavating in rocksslopes to make up levels irrespective of class 47 cm plunking and strutting f allow for plunking and strutting to uphold the sides of excavations item dewatering g allow for keeping excavated material free from water by either pumping or bailing item disposal. Extra over in quantity surveying is used mainly to described additional item for the previous set of description for example. Item description unit qty rate kshs amount kshs a electrical installation works pvcswapvc copper cables per meter a a 25mm sq. Importance and functions of bills of quantities in the. Please itemize required item in the following space provided under each sub header. Concrete or brickwork 3 m3 g integrity testing of piles h set up costs for integrity tests item i allow to carry out integrity tests to piles 240 nr load test j allow to load test 1nr pile item cart away arisings k dispose off site all surplus excavated.