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Operational Bills
Operational bills are a tendering document for estimating costs prepared by architects that describes a construction project in terms of the operations (which include labour and plant) needed to build it. This form of document contrasts with that of bills of quantities in which such tendering and estimation is limited to the materials in the completed work. Operational bills have the advantages of enhancing communication between design and production, enabling realistic tender pricing, and making the preparation of critical-path analysis easy for the contractor.Skoyles, E. R. (1966) Examples from operational bills Skoyles, E. R. (1967) Preparation of an operational bill. Building Research Station Operational bills were proposed and developed by Edward Skoyles at Building Research Establishment in the 1960s. Priced-activity schedules of the NEC Engineering and Construction Contract are a modern related form, prepared by the contractor. Potts, K. (2008). Construction Cost Mana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Call For Bids
An invitation to tender (ITT, otherwise known as a call for bids or a request for tenders) is a formal, structured procedure for generating competing offers from different potential suppliers or contractors looking to obtain an award of business activity in works, supply, or service contracts, often from companies who have been previously assessed for suitability by means of a supplier questionnaire (SQ) or pre-qualification questionnaire (PQQ). The term "notice inviting tenders" (NIT) is often used in purchasing in India. An ITT differs from a request for quotation (RFQ) or a request for proposal (RFP), in which case other reasons (technology used, quality) might cause or allow choice of the second best offer. An RFP is a request for a price from a buyer but the buyer would also expect suggestions and ideas on how the project work should be done. RFPs are thus focused on more than just pricing/cost, they entail a bit of consulting from the contractor or vendor. The closest equi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Building Research Establishment
The Building Research Establishment (BRE) is a centre of building science in the United Kingdom, owned by charitable organisation the BRE Trust. It is a former UK government national laboratory that was privatised in 1997. BRE provides research, advice, training, testing, certification and standards for both public and private sector organisations in the UK and abroad. It has its headquarters in Garston, Hertfordshire, England, with regional sites in Glasgow, Swansea, the US, India, the Middle East and China. Programmes BRE is now funded with income from commissioned research, commercial programmes and by a number of digital tools for use in the construction sector. BRE's certification arm – BRE Global – is an independent, third-party certification body responsible for sustainability certification schemes such as BREEAM (for buildings and communities), CEEQUAL (for infrastructure), the Home Quality Mark (for housing) and LPCB certification (for fire and security products ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Construction Bidding
Construction bidding is the process of submitting a proposal ( tender) to undertake, or manage the undertaking of a construction project. The process starts with a cost estimate from blueprints and material take offs. The tender is treated as an offer to do the work for a certain amount of money (firm price), or a certain amount of profit ( cost reimbursement or cost plus). The tender, which is submitted by the competing firms, is generally based on a bill of quantities, a bill of approximate quantities or other specifications which enable the tenders to attain higher levels of accuracy, the statement of work. For instance, a bill of quantities is a list of all the materials (and other work such as amount of excavation) of a project which have sufficient detail to obtain a realistic cost, or rate per described item of work/material. The tenders should not only show the unit cost per material/work, but should also if possible, break it down to labour, plant and material costs. In th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. The quantities may be measured in number, area, volume, weight or time. Preparing a bill of quantities requires that the design is complete and a specification has been prepared. The bill of quantities is issued to tenderers for them to prepare a price for carrying out the construction work. The bill of quantities assists tenderers in the calculation of construction costs for their tender, and, as it means all tendering contractors will be pricing the same quantities (rather than taking-off quantities from the drawings and specifications themselves), it also provides a fair and accurate system for tendering. Creation Bill of quantities are prepared by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bill Of Materials
A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts, and the quantities of each needed to manufacture an end product. A BOM may be used for communication between manufacturing partners or confined to a single manufacturing plant. A bill of materials is often tied to a production order whose issuance may generate reservations for components in the bill of materials that are in stock and requisitions for components that are not in stock. There are two types of bill materials. A BOM can define products as they are designed (engineering bill of materials), as they are ordered (sales bill of materials), as they are built (manufacturing bill of materials), or as they are maintained (service bill of materials). The different types depend on the business need and use for which they are intended. In process industries, the BOM is also known as the formula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Architects Journal
''Architects' Journal'' is an architectural magazine published in London by Metropolis International. History The first edition was produced in 1895. Originally named ''The Builder's Journal and Architectural Record'', from 1906 to 1910 it was known as ''The Builder's Journal and Architectural Engineer'', and it then became ''The Architects and Builder's Journal'' from 1911 until 1919, at which point it was given its current name. In December 2015 title owner Top Right Group rebranded as Ascential, who, in January 2017, announced its intention to sell 13 titles, including ''Architects' Journal''; the 13 "heritage titles" were to be "hived off into a separate business while buyers are sought." The brands were purchased by Metropolis International announced on 1 June 2017. '' ''Architects' Journal'' remains in print, publishing issues 12 times a year along with 10 annual issues of sister publication AJ Specification, while its online version provides a daily news service. In 2018 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEC Engineering And Construction Contract
The New Engineering Contract (NEC), or NEC Engineering and Construction Contract, is a formalised system created by the UK Institution of Civil Engineers that guides the drafting of documents on civil engineering, construction and maintenance projects for the purpose of obtaining tenders, awarding and administering contracts. The NEC contract is widely used in both the United Kingdom and Hong Kong. There have been attempts, largely unsuccessful, at introducing the NEC contract into both Australia and New Zealand from at least 1994 but the contract remains relatively obscure in both countries. There have been four editions, the first in 1993, the second in 1995, the third in 2005 and the most recent in 2017. The NEC3 was launched in 2005 and it was amended in April 2013. The NEC Users' Group, with over 400 members worldwide, brings together organisations and individual users of the NEC contract suite to exchange knowledge and best practice. History Originally contracts in the civi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Skoyles
Edward Skoyles (14 March 1923 – 30 July 2008) was the first quantity surveyor employed in the UK to research costs and practices in the construction industry. He did his research from 1960 until 1984 at the Building Research Establishment. Among his research projects was developing a new type of tendering for construction projects called operational bills.Skoyles ER. (1966) Examples from operational bills Skoyles ER. (1967) Preparation of an operational bill. Building Research Station Skoyles ER. (1968) Introducing bills of quantities: (Operational format). Building Research Station. Skoyles ER. (1969) Examples from bills of quantities (Operational format). He also started the study of the actual amount of waste in the construction industry,Skoyles ER. Materials wastage: a misuse of resources. Building Research and Practice, CP 67/76, Oct. 1976. Skoyles ER. (1978) Site accounting for waste of building materials, BRE Current Paper CP 5 /78, London: HMSO. Skoyles ER. (198 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estimating
Estimation (or estimating) is the process of finding an estimate or approximation, which is a value that is usable for some purpose even if input data may be incomplete, uncertain, or unstable. The value is nonetheless usable because it is derived from the best information available.C. Lon Enloe, Elizabeth Garnett, Jonathan Miles, ''Physical Science: What the Technology Professional Needs to Know'' (2000), p. 47. Typically, estimation involves "using the value of a statistic derived from a sample to estimate the value of a corresponding population parameter".Raymond A. Kent, "Estimation", ''Data Construction and Data Analysis for Survey Research'' (2001), p. 157. The sample provides information that can be projected, through various formal or informal processes, to determine a range most likely to describe the missing information. An estimate that turns out to be incorrect will be an overestimate if the estimate exceeds the actual result and an underestimate if the estimate fall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Contractor
A general contractor, main contractor or prime contractor is responsible for the day-to-day oversight of a construction site, management of vendors and trades, and the communication of information to all involved parties throughout the course of a building project. Description A general contractor is a construction manager employed by a client, usually upon the advice of the project's architect or engineer. Responsible for the overall coordination of a project, general contractors may also act as building designer and foreman (a tradesman in charge of a crew). A general contractor must first assess the project-specific documents (referred to as a bid, proposal, or tender documents). In the case of renovations, a site visit is required to get a better understanding of the project. Depending on the project delivery method, the contractor will submit a fixed price proposal or bid, cost-plus price or an estimate. The general contractor considers the cost of home office overhead, gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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