- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 05 Jan 2018
Typically, a contractor is able to purchase from their own choice of supplier, as long as they comply with the requirements set out in the specification. However, under certain circumstances, the client may wish to impose (or nominate) a particular supplier on the main contractor after the main contractor has been appointed.
- A particular product brand is required.
- The particular goods provided by the supplier are not widely available.
- There is an existing relationship with the supplier.
- Long delivery items are required where ordering is necessary before the appointment of a main contractor.
- Specialist design input is required in the early stages of design development.
- Complex or specialist industrial plant or equipment may be required, upon which the design will be based.
The mechanism for nominating is an instruction in relation to a prime cost sum to which the main contractor is entitled to add mark up and attendance costs. This allows the client to have direct separate negotiations with suppliers and feed their appointment into the contract after works by the main contractor have commenced.
A potential drawback of nominating a supplier is that the contractor is then not able to ‘shop around’ to obtain the best price or supplier. It is important therefore that suppliers are nominated with due consideration to their ability to supply in line with the project specification, programme and budget.
In addition, as the contractor has no choice in the selection of the nominated sub-contractor, they cannot be held responsible for their failure to perform. However, as the supply contract is with the main contractor, not with the client, the client should ensure that they have a direct warranty with the nominated supplier to guarantee performance and indemnify the client if any default allows a claim for loss and expense or extension of time by the main contractor.
 Related articles on Designing Buildings Wiki
Featured articles and news
Book review: The vertebrate architecture of one of the most important practices of the 20th century.
Matt Rhodes, Quiss Technology, explains how an increasing number are falling victim to sophisticated cyber-attacks.
Assembly drawings represent items that consist of more than one component and show how they fit together.
Is the water sector under too much pressure from the regulator?
Everything you need to know about acoustics in under 800 words.
Check out our list of the 90 most unusual buildings of all time.
The government is to set a personal consumption target to reduce water use.
BSRIA calls for more education to promote fuels that are fit to burn.
Michael Gove admits air pollution is making people ill and shortening lives.
BRE call for a clearer, focused drive for the delivery of sustainable, quality developments.
Proposals for a 140m high observation wheel next to the Tyne.