The lowest number in a quotation can be perfectly accurate and still be the wrong number to compare. One supplier may include an assembled cabinet and room labels. Another may quote a packed set of panels, with assembly and labeling left to someone else.
Start with a scope comparison. Price becomes useful once the rows mean the same thing.
Keep the supplier's offer and your comparison separate
Preserve each original quotation, including its date and revision. Build your own comparison sheet beside it. If you edit a supplier's document to make it look consistent, you can lose the distinction between what was offered and what you assumed.
Use four labels in your working sheet: included, excluded, allowance and unanswered. An unanswered item is not free. An allowance is not a confirmed specification.
| Line to compare | What needs to match |
|---|---|
| Furniture | Item code, drawing revision, dimensions, material build-up and quantity by version. |
| Appearance | Finish reference, visible faces, hardware and upholstery scope where relevant. |
| Development | Drawings, samples, revision work and any separately priced tooling. |
| Verification | Agreed inspection work, required reports and who pays for additional testing. |
| Packing and movement | Assembly state, packaging, labels, delivery point and transport responsibilities. |
| After delivery | Spare parts, documents and the written process for reporting problems. |
Resolve substitutions before assigning a winner
A substitution is not automatically a defect in the offer. It may be a sensible way to reduce cost or simplify production. The important question is whether the difference is visible and acceptable to the people using or maintaining the furniture.
For a hypothetical sideboard, one proposal might change the internal shelf arrangement while keeping the exterior. That is a design decision for the buyer. A proposal that silently changes the agreed visible finish is a different issue. Record both changes, but do not treat them as equivalent concessions.
Ask for a separate price for the original requirement where possible. You can then see the value of an alternative without losing the baseline.
Read time and delivery as carefully as the unit price
What starts the quoted production period: payment, drawing approval, sample approval or receipt of a buyer-supplied component? What event ends it? Two equal periods can lead to different delivery dates if their starting conditions differ.
Check the delivery term, named place and edition where Incoterms® rules are used. Their allocation of costs and risks is explained by the International Chamber of Commerce. Obtain project-specific confirmation from the parties arranging the shipment rather than guessing which charges the unit price includes.
Calculate a decision total without disguising estimates
Add separately quoted development, packing and delivery items to the furniture price. For costs handled elsewhere, use a clearly labeled estimate and name the person who will verify it. Keep different currencies visible until you have selected a common comparison date and exchange-rate basis.
The useful result is not a mysteriously precise grand total. It is a comparison that shows what is confirmed, what is estimated and what remains unresolved. A large unknown can matter more than a small difference in unit prices.
Send one clarification sheet to each supplier
Number the open questions and request a revised quotation that answers them. Avoid collecting the final offer from fragments of chat, an old spreadsheet and a later email. Before placing an order, check that the selected drawing, finish reference and accepted alternatives are named in the same confirmed set of documents.
If too many rows are unanswered, revisit the initial quote brief. For packing-related gaps, use the furniture packaging brief. The custom manufacturing overview is a starting point for discussing a specific requirement, not a substitute for a confirmed quotation.