20+ Free Construction Contract Samples and Template

Free Samples of Lump Sum Contracts

Lump Sum contract, also called fixed-price contract, establishes a set cost for a project. This means the contractor assumes all financial risk if costs exceed the agreed-upon price. These contracts are ideal for well-defined projects where changes are unlikely.

Here are some free Lump Sum construction agreement templates used in different sectors.

• UNOPS Lump Sum Construction Contract Model
• Lump Sum Agreement between Owner and Contractor
• Model Residential Construction Contract Lump Sum

Free Cost-Plus Construction Contract Samples

Cost-Plus contracts reimburse contractors for actual project costs plus a fixed fee or percentage. These contracts are ideal when project scope is uncertain or designs are still evolving. However, they require careful documentation to prevent disputes over reimbursable expenses.

Check out these construction project contract templates to see how this structure is commonly used.

• Princeton University Cost Plus Fixed Fee Contract Model
• Cost Plus Incentive Construction Contract
• Construction Contract Cost Plus

Free Unit Price Construction Contract Samples

Unit Price contract breaks down costs based on measurable quantities—such as cubic meters of concrete or square feet of tiling—rather than a lump sum. These contracts work well for road construction, utilities, and infrastructure projects where work quantities may change.

Here are Unit Price contract agreements for construction work that help define unit-based pricing.

• General Conditions of Unit Price Contract
• UNOPS Measured Price Construction Contract Model
• Unit Price Pavement/Concrete Services

Free Time and Materials (T&M) Contract Samples

Time and Materials contract is used when project scope is unclear, allowing contractors to bill for labor and materials as needed. While this flexibility is beneficial for complex or fast-moving projects, cost control mechanisms like spending caps are often necessary.

Below are Time and Materials contract samples that outline how costs and labor tracking are managed.

• Princeton University Construction T&M Contract
• Time and Materials Contract Sample
• Time and Materials Construction Agreement

Free Samples of Guaranteed Maximum Price (GMP) Contracts

Guaranteed Maximum Price contract protects project owners by capping costs while allowing for flexibility in design and scope. If actual costs exceed the agreed maximum, the contractor must cover the difference. This structure incentivizes cost control but requires thorough contract documentation.

Here are GMP contract examples that illustrate how these agreements protect project budgets.

• Princeton University GMP Contract
• Guaranteed Maximum Price Agreement
• CM with GMP Agreement
• CMAR with GMP Agreement Sample

Free Design-Build Contract Samples

Design-Build contract combines design and construction into a single agreement, reducing project timelines and improving collaboration. This approach is gaining popularity for infrastructure, commercial, and public-private partnership (P3) projects.

Below are Design-Build contract samples that combine design and construction into a single agreement.

• Sample Form of Design Build Agreement
• USG Design Build Contract Sample
• Design Build Agreement District of Columbia General Campus
• City of Palo Alto Design Build Contract Sample

Free Design and Construction Contract Samples

Design and Construction contract covers both the architectural design and physical building process within a single agreement. These contracts reduce gaps between designers and builders, improving efficiency and accountability.

They are commonly used in large commercial developments, public infrastructure, and residential projects where seamless integration of design and construction is essential.

Below are Design and Construction contract templates used for managing projects from concept to completion.

• South Australian Housing Trust D&C Agreement Sample
• Design and Construct Contract - Standard User Funding Agreement
• Design and Construction Agreement for the Midland Health Campus

Free Home Construction Contract Samples

Home construction contracts are essential for new residential builds, renovations, and custom home projects. These agreements protect homeowners and contractors by defining project scope, materials, payment schedules, and dispute resolution methods.

Here are home construction contract templates that homeowners and builders can use for a smooth project.

• Residential Construction Agreement
• Proposal and Contract for Home Building and Home Repair
• QBCC New Home Construction Contract

Final Thoughts

Contracts protect your project, your budget, and your peace of mind. A poorly structured contract can lead to disputes, delays, and financial losses, while the right one keeps your project on track.

Whether you’re building a home, managing a large infrastructure project, or overseeing a commercial development, having access to well-drafted contract templates saves time and prevents costly mistakes.

Lastly, no two projects are the same, so take the time to review these construction contract samples. Tailor them to your needs, and seek legal or construction management advice if necessary.