Therefore, this research would address the gap and analyse the usefulness of BQ to the contractor at the tendering and post - tender stage. Many previous studies have carried out for the effectiveness of BQ, but very few discuss about the relationship between the usefulness of information in BQ at tendering stage and post - tendering stage from the view of the contractor. This seems to suggest that the more complex a project is, the less reliable it is to use the BOQ to guarantee cost certainty.īill of Quantities (BQ) have been used in Malaysia since their introduction to the industry by the British Colonial Government circa 1930.
Whilst a deviation of -3 to 4% was obtained on housing projects analysed, the deviation on educational projects was between -4 and 17% whist on commercial project, it came out to be between -20 and 20% and in the case of refurbishment projects, a deviation of between -11 and 37% was obtained. Results showed that the budgetary reliability of the bills of quantities seems to vary depending on project types. Further analyses were carried out using root mean square deviation and relative mean absolute deviation methods of analyses. Data analysis was carried out using percentage deviation of final account figures from the bills of quantities. Using secondary data from completed projects, the budgetary reliability of the bills of quantities in building project procurement was investigated. The study was carried out using secondary data from some recently completed building projects within the Northern Ireland construction industry. Whilst this is recognised, the essence of this study is to evaluate the reliability of bills of quantities in building project procurement. The pros and cons of the bills of quantities have been deliberated on for many years and have generated strongly held and differing views. In spite of that age long history, the bills of quantities (BOQ) seems to be the most misinterpreted aspects of building documentation today. This paper highlights the necessity for provision of bespoke MCHW training.īills of quantities have been documented to exist in some form or another as far back as when the Egyptian pyramids were being constructed. The study demonstrates a desire for a single MOM for civil engineering work but practitioners were divided on which one. MCHW was considered more cost effective but the wider use and scope of CESMM3 has resulted in greater working knowledge. MCHW is mainly used on government road projects with CESMM3 containing provision within the document for a wider scope of civil engineering works. The research highlighted for the first time that CESMM3 is considered more user friendly than MCHW. The use of SMM7 for civil engineering work could point to a deficiency in CESMM3 class Z for minor building work.
Rules in cesmm 3 manual#
Four MOMs were identified as being used for civil engineering work: CESMM3, Manual of Contract Documents for Highway Work (MCHW), Standard Method of Measurement 7 (SMM7) and National Roads Authority (NRA).
Using structured interviews and a LimeSurvey questionnaire it determines that Civil Engineering Standard Method of Measurement 3 (CESMM3) was the most widely used MOM for civil engineering work and the preferred option. The Civil Engineering Standard Method of Measurement (commonly known as CESMM3) sets out a procedure for the preparation of a bill of quantities for civil engineering works, for pricing and for expression and measurement of quantities of work.The paper compares the two most popular methods of measurement (MOM) for civil engineering work for the first time.
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