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An eight-sheet project-control workbook for greenhouse contract scope, milestone evidence, changes, notices, acceptance and warranty records.
CFGET original buyer tool
Greenhouse Contract Payment and Change Control Workbook
Free editable Excel workbook with 8 working sheets. No email is required. Save a controlled project copy before the team begins entering evidence.
A project can have a signed contract and still run on informal decisions. A site supervisor requests a change in a messaging app. A payment is released because material is “almost ready.” A technical clarification remains in an email and never reaches the contract schedule.
The result is not always a dispute. More often, the team simply loses the evidence needed to decide who owes what and when.
Build one contract control index
Start with the parties, contract date, governing law, language, price, currency, tax, Incoterm, milestones and authorized representatives. Record the document hierarchy so the team knows whether the signed specification, proposal or clarification controls when they conflict.
This workbook is not legal advice. A suitable local lawyer should review governing law, liability, security, notices, dispute and termination terms. The project team still needs a practical register that turns those terms into daily controls.
Pay against evidence
A milestone should describe an objective event and its required evidence. “30 percent on manufacture” is unclear. Does manufacture mean materials purchased, frame complete, factory inspection passed, packing list approved or goods ready for shipment?
The Payment Milestones sheet separates the contract trigger, amount, required evidence, technical verification and commercial approval. Use Hold when evidence is incomplete. An invoice starts the payment process; it does not prove the milestone.
Control changes before changed work begins
| Change record | Question to answer | Risk if omitted |
|---|---|---|
| Instruction | Who requested it and did that person have authority? | Informal direction becomes disputed scope |
| Technical effect | Which drawings, capacities, interfaces or tests change? | One modification creates an unreviewed system conflict |
| Commercial effect | What is quoted, approved and forecast? | Cost is discovered after the work |
| Schedule effect | Does the change move design, shipment, installation or crop entry? | The price is agreed but the delay is not |
| Acceptance and warranty | Do criteria, documents or warranty duties change? | Closeout follows the original scope instead of the installed work |
Keep notices and decisions traceable
Record the event date, contract reference, notice deadline, date sent, delivery evidence, response date and decision. Notice requirements vary by contract and law, so the team should not assume this register calculates legal deadlines. It makes the dates visible for review.
The Contract Review sheet contains 24 buyer-control questions. Scope and Exclusions provides 24 open lines for measurable obligations. Change Register holds 20 changes, while Notices and Decisions holds 18 records. The dashboard reports open changes and held payments.
Do not merge all acceptance into one word
Mechanical completion, commissioning, performance acceptance and final acceptance may need separate definitions. Link each stage to tests, documents, training, open defects and commercial consequences. State when the warranty begins and what happens to seasonal tests that cannot be completed at handover.
At closeout, reconcile the approved changes with as-built drawings, manuals, software backups, spare parts and the final price. The installed greenhouse should match the record set the operator receives.
Keep the completed workbook with the project’s controlled documents. You can also review the CFGET download library, greenhouse climate control options, irrigation and fertilization systems, and the commissioning and handover guide.
A CFGET project view to use with the workbook
Greenhouse Project Shipment gives the project team a visual reference. Watch for interfaces, access, equipment position and work sequence, then record project-specific findings in the workbook rather than treating the clip as a design specification.
Who prepared this workbook?
Frequently asked questions
Can this workbook replace a greenhouse contract?
No. It is a project-control register. Use the signed contract and obtain project-specific legal advice from suitable local counsel.
Should a buyer pay when equipment is ready but inspection documents are missing?
Follow the contract. Where the milestone requires inspection or document evidence, record the gap and obtain the authorized technical and commercial decision before payment.
What counts as an approved change?
Use the authority and procedure stated in the contract. A controlled change normally records the instruction, scope, technical effect, cost, schedule, acceptance effect and written approval.
