Last updated: November 2, 2026

B2B Sourcing & Pricing · Last updated: 2 November 2026 · Jusen Doors Technical Team · Reviewed by Jusen Doors Engineering Team

Door Purchase Contracts: 12 Clauses Importers Should Add

Clauses 1-3: freeze the product

First, incorporate the controlling drawings, door schedule revision, hardware schedule and finish sample IDs by reference, with an order-of-precedence rule if documents conflict. Second, define construction in section terms—core, stiles, face, edge, frame and glazing—not by a marketing model name. Third, state dimensional and workmanship tolerances for size, squareness, flatness/bow, machining position and finish variation, plus the measuring method. Without tolerances, every defect discussion becomes taste.

Clauses 4-6: moisture, ratings and documents

Set a moisture range tied to destination conditions, the meter/sampling approach and the remedy for out-of-range product. For fire, acoustic, emissions or certified timber claims, require the exact evidence, holder, scope and marking as a condition of shipment—not as documents to be chased after arrival. Add a document schedule for packing lists, origin/customs data, installation instructions and care terms, with language and revision control.

Clauses 7-9: inspection, packing and delivery

Reserve the buyer's or a named third-party's right to inspect during production and before shipment, define sampling and critical/major/minor criteria, and say who pays for re-inspection after failure. Specify pack construction, labels matched to door schedule lines, moisture protection and container loading photos. Delivery terms should identify Incoterms precisely, production start triggers (deposit, drawings, sample approval), partial shipment rules and consequences of delay that local counsel considers enforceable.

Clauses 10-12: changes, claims and spares

Require written change orders for size, finish, hardware or construction changes, with price and programme effects agreed before production. Define arrival inspection period, evidence needed for transit versus manufacturing defects, repair/replace/refund options and who bears return freight. Finish with warranty period, spare leaves/hardware/seals, touch-up materials and how long matching finishes will remain available. Long projects should also address retained samples and batch colour control.

The attachment pack makes the clauses usable

• Door and hardware schedules with revision numbers.
• Section drawings and machining templates.
• Approved colour/finish and full-size sample IDs.
• Rating/certification evidence mapped to each door type.
• Tolerance, moisture and inspection criteria.
• Packing specification and label sample.
• Payment, inspection and shipment milestone table.

Specification checklist: what to confirm before ordering

• Door schedule with sizes, quantities, hand, design and finish for every line.
• One baseline specification and an inclusion/exclusion matrix for frame and hardware.
• Sample count and timing, production planning band and milestone triggers stated.
• Packed dimensions, gross weights, stack limits and container plan confirmed before booking freight.
• Inspection method, payment milestones, change control and claim process written into the order.

Related guides

• MDF Door Prices per Unit: Bulk FOB Cost Breakdown (2026)
• Door Sample Orders: Process, Costs & Approval Checklist
• Door Quotation Red Flags: 10 Signs a Price Is Too Good

FAQs

Is a proforma invoice enough as a contract?

It records price and quantity but rarely defines construction tolerances, inspection rights, evidence, changes and claims well enough for a complex door package. Attach a technical specification and terms.

Should tolerances copy another project?

Use them only as a starting point. Door type, market standard and installation method affect sensible tolerances; agree measurable limits with the factory and inspector.

Who should review the final clauses?

A lawyer familiar with the governing law and trade route should review enforceability, liability, retention of title and dispute terms.

Data note: Figures described as typical, common or planning ranges are industry budgeting ranges with the stated assumptions. Building-code duties, tested scope and final quotations depend on destination, selected construction and order schedule.