- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 24 Jan 2017
Force account work
In this case, the works are undertaken with the understanding that the client will pay the contractor according to the actual cost of their labour, materials, and equipment, with an additional percentage for overheads and a mark-up for profit.
It can be used when the contractor and client are unable to agree a unit price or lump sum amount, or if these methods are impracticable, for example, when the quantities and scope of work are unknown at the time of tendering, or for a change order requiring extra, unforeseen work identified after construction has already begun.
Force account work can permit the early start of construction work in critical areas, and can save staff time and overhead costs that would be required for contract package preparation, bidding, evaluation and the award of contracts.
However, it can leave both parties open to unknown costs. The client may not know the quantity, or rates of the works required, and the contractor may agree to very broad terms such as 'all costs' which can leave them struggling to make claims later in the project.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
A quick introduction to a very complicated subject.
CIOB suggests the economic reach of construction is double the official figures.
The first US building to achieve BREEAM Outstanding In-Use.
70 buildings from 70 years of Concrete Quarterly. Book review.
Conserving the iron roof at the Albert Dock.
Delivering an infrastructure revolution.
The admissibility of evidence.
How many can you name? 37 anyone?
CIOB respond to the points-based system.
When is the weather considered 'exceptionally adverse'?
ECA backs call for a rolling programme of rail electrification.