Category: Quantities & pricing
Prepared by Eng. Ahmed Fathy, Projects Manager ·
Definition
Price escalation is a contract clause that allows the value of the works to rise or fall when the prices of key materials such as steel, cement and cable, or labour and fuel, move away from the prices at the pricing date, usually by a formula tied to an official index.
Why it matters on a project
On long contracts rebar or cable can rise 20% in one year, as happened between 2025 and 2026. The clause protects both parties and avoids disputes or a contractor stopping work.
Measurement and pricing
A formula gives each material's weight in the contract value and the change in its index between the base date and the work date, with a threshold before it applies.
Worked example
A 5,000,000 SAR contract with steel at 15% of its value, and the steel index up 19.7%: adjustment 5,000,000 × 15% × 19.7% = 147,750 SAR.
Common mistake
Signing a long lump sum contract without an escalation clause, then claiming compensation after prices rise with no contractual basis.
Frequently asked questions
Which index does the adjustment use?
Usually GASTAT's building material prices and construction cost index, or whatever the contract names.
Does it apply when prices fall?
Yes if the contract says so; a fair clause works both ways.
Related terms
- Lump-sum contractA fixed-price contract for a defined scope; the contractor carries the quantity risk.
- Unit rateThe item price per unit of measure, built from material, labour and equipment then indirect costs and profit.
- Cash flowThe timing of money coming in and going out over the project.
- Variation order (VO)A written instruction changing scope, quantity or specification, with its price and time effect.
Read next
Does your project need quantity take-off and BOQ pricing? Send the drawings or a short description and we reply within one working day.
Service detailsRequest a quote