NEC Option B: Priced contract with bill of quantities
NEC was first published in 1993 as the New Engineering Contract. It is a suite of construction contracts intended to promote partnering and collaboration between the contractor and client.
The Engineering and Construction Contract (ECC) is the most frequently used, and can be adopted on projects such as infrastructure, buildings, highways and process plants. It is used for the appointment of a contractor for engineering and construction work, including any level of design responsibility.
Under Option B, the bill of quantities is a ‘traditional’ bill of quantities, i.e. a document prepared by the cost consultant (often a quantity surveyor) that provides project specific measured quantities of the items of work identified by the drawings and specifications in the tender documentation.
From the employer’s specified quantities the contractor prices its rates accordingly, and bears the risk of carrying out the work at the agreed prices.
The contractor is entitled to interim payments, certified at assessment dates by the project manager as set out in the contract. The price for the work done to date is the quantity of completed work for each BoQ item multiplied by the relevant rate and a proportion of any lump sum item in the BoQ. The proportion of the lump sum items to be paid is determined by the extent to which they have been completed.
The contract contains core and secondary option clauses, the shorter schedule of cost components, and contract data.
[edit] Related articles on Designing Buildings
- Bill of quantities.
- Conditions of contract.
- Construction contract.
- Contract documents.
- Contractor's working schedule.
- NEC Option A: Priced contract with activity schedule.
- NEC Option C: Target contract with activity schedule.
- NEC Option D: Target contract with bill of quantities.
- NEC Option E: Cost reimbursable contract.
- NEC Option F: Management contract.
- NEC3.
- Right to payment.
- Term contract.
Featured articles and news
What it is and how to use it.
Investors in People: CIOB achieves gold
Reflecting a commitment to employees and members.
Scratching beneath the surface; a guide to selection.
ECA 2024 Apprentice of the Year Award
Entries open for submission until May 31.
UK gov apprenticeship funding from April 2024
Brief summary the policy paper updated in March.
For the World Autism Awareness Month of April.
70+ experts appointed to public sector fire safety framework
The Fire Safety (FS2) Framework from LHC Procurement.
Project and programme management codes of practice
CIOB publications for built environment professionals.
The ECA Industry Awards 2024 now open !
Recognising the best in the electrotechnical industry.
Sustainable development concepts decade by decade.
The regenerative structural engineer
A call for design that will repair the natural world.
Buildings that mimic the restorative aspects found in nature.
CIAT publishes Principal Designer Competency Framework
For those considering applying for registration as a PD.
BSRIA Building Reg's guidance: The second staircase
An overview focusing on aspects which most affect the building services industry.
Design codes and pattern books
Harmonious proportions and golden sections.
Introducing or next Guest Editor Arun Baybars
Practising architect and design panel review member.
Comments