FAR and DFARS › FAR Part 36: Construction and Architect-engineer Contracts › Subpart 36.2
FAR 36.207 Pricing fixed-price construction contracts.
The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.
In plain English
This section says construction work is generally acquired using firm-fixed-price contracts, priced either as a lump sum, by unit prices, or a mix of both. It tells you when lump-sum pricing is preferred over unit pricing, and when a fixed-price contract with an economic price adjustment may be used.
Applies to: Contracting for construction work under fixed-price contracts
Key terms: firm-fixed-price contracts · lump-sum basis · unit-price basis · fixed-price contracts with economic price adjustment · contingency
Written by AI from this section's text. A guide, not legal advice: the text below rules.
The text
(a) Generally, firm-fixed-price contracts shall be used to acquire construction. They may be priced (1) on a lump-sum basis (when a lump sum is paid for the total work or defined parts of the work), (2) on a unit-price basis (when a unit price is paid for a specified quantity of work units), or (3) using a combination of the two methods.
(b) Lump-sum pricing shall be used in preference to unit pricing except when—
(1) Large quantities of work such as grading, paving, building outside utilities, or site preparation are involved;
(2) Quantities of work, such as excavation, cannot be estimated with sufficient confidence to permit a lump-sum offer without a substantial contingency;
(3) Estimated quantities of work required may change significantly during construction; or
(4) Offerors would have to expend unusual effort to develop adequate estimates.
(c) Fixed-price contracts with economic price adjustment may be used if such a provision is customary in contracts for the type of work being acquired, or when omission of an adjustment provision would preclude a significant number of firms from submitting offers or would result in offerors including unwarranted contingencies in proposed prices.
← 36.206 Liquidated damages. · 36.208 Concurrent performance of firm-fixed-price and other types of construction contracts. →
Rule changes for FAR Part 36
- Federal Acquisition Regulation: Revolutionary Federal Acquisition Regulation Overhaul Parts 14, 28, 36, and 52 ↗ · proposed 2026-09-18 · comments due 2026-10-19
- Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds ↗ · final rule 2025-08-27 · effective 2025-10-01
- Federal Acquisition Regulation; Technical Amendments ↗ · final rule 2024-12-16 · effective 2025-01-03
- Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds ↗ · proposed 2024-11-29 · comments due 2025-01-28
- Federal Acquisition Regulation: Prohibition on the Use of Reverse Auctions for Complex, Specialized, or Substantial Design and Construction Services ↗ · proposed 2024-08-29 · comments due 2024-10-28
- Federal Acquisition Regulation: Sustainable Procurement ↗ · final rule 2024-04-22 · effective 2024-05-22
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.