Authors : Kabir Bala and Yakubu Ibrahim
Abstract: Inadequate design by specialist consultants can cause differences to the initial contract sums of proposed projects. This study presents a review of the effects on Initial Contract Sums of variations caused by specialist consultants and the Adjustment of Prime cost sums. Adequacy of design could be affected by deficiencies in detailing, specification, legislation and building of drawings and inaccuracies in the build-up of Prime cost sums prepared for the Bills of Quantities. Five completed projects in a selected domain of projects and analysed in order to illustrate the effects of inadequate specialist consultants� Designs on the Initial contract sums of construction projects. Differences to the initial contract sums were encountered on all the five projects, ranging from 3.36-43.40%. It is recommended that clients should present their brief in details and specialist consultants should spend time, with forethought in the preparation of contract documents.
Kabir Bala and Yakubu Ibrahim , 2007. Effects of Indequate Design by Specialist Consultants in Construction Projects . Journal of Engineering and Applied Sciences, 2: 1414-1420.