RFQ, BOQ & Evaluation

How to Prepare an RFQ for Building Materials and Compare Supplier Quotations

A building material RFQ should do more than ask for a price. It should give every supplier the same technical, commercial and logistics basis for quoting, then capture the responses in a format that exposes differences before they become purchase-order variations, delivery delays or unexpected landed costs.

Practical rule If two quotations cannot be placed side by side without guessing what is included, the RFQ did not create a common comparison basis. Fix the missing requirement or obtain a written clarification before ranking suppliers.

1. Define the Material Requirement Before Sending the RFQ

Start with an internal requirement that the technical, project and procurement teams can support. A vague request such as “quote porcelain tiles” forces each supplier to make different assumptions. One supplier may quote a commercial-grade tile, another may include a premium finish, and a third may exclude trims and spare quantities. The prices look comparable but represent different scopes.

For each line item, define the product, application, quantity, unit of measure, required performance and delivery location. Where relevant, include drawings, schedules, BOQ references, approved-equal rules and the latest revision of the specification. Distinguish mandatory requirements from preferences so suppliers know where alternatives are permitted.

Material identityProduct name, item code, drawing or BOQ reference, application and required quantity.
Technical basisDimensions, material or grade, finish, performance, standard, certification and approved equivalent rules.
Project basisProject location, delivery sequence, packaging constraints, required-on-site date and any phased quantities.
Commercial basisQuote currency, tax treatment, Incoterms rule and named place where applicable, validity period and payment assumptions.

Resolve obvious internal conflicts before issue. If the BOQ calls for 1,000 m² but the finish schedule totals 1,120 m², do not ask suppliers to choose. Record the agreed procurement quantity and identify whether wastage, attic stock or spares are included.

2. Include the Information Suppliers Need to Quote Correctly

A useful RFQ package normally combines an instruction sheet, a pricing schedule and supporting technical documents. The instruction sheet tells suppliers how and when to respond. The pricing schedule controls the format. The drawings, specifications and schedules define the required product and scope.

At minimum, state the RFQ reference and revision, response deadline, buyer contact, quote currency, quotation validity requirement, delivery destination, requested delivery date, packaging or labelling requirements, and the documents that must be returned. Ask suppliers to identify assumptions rather than burying them in general terms and conditions.

Make the return requirements explicit. Depending on the material, these may include technical data sheets, compliance statements, test or certification references, samples, warranty details, production lead time, packing data, country of origin and a list of exclusions or deviations.

Common mistake: sending a drawing and asking for a lump-sum price without a controlled pricing schedule. This makes it difficult to see whether quantities, accessories, testing, packaging, delivery or installation support were omitted.

3. Separate Technical, Commercial and Logistics Requirements

Organize the RFQ so reviewers can assess compliance without mixing it with price. A low quotation should not appear attractive simply because a technical exception is hidden in a commercial note.

Technical response

Request the offered manufacturer and model, specification compliance, proposed deviations, applicable standards, test evidence, submittal lead time, warranty and any alternative product. Require suppliers to answer each mandatory requirement with “complies,” “deviates” or “not offered,” followed by a reference or explanation.

Commercial response

Capture unit price, quantity, line total, currency, discount, tax, quotation validity, payment terms, MOQ, minimum order value and tooling or sample charges. If escalation or raw-material adjustment is possible, require the supplier to state the mechanism rather than leaving price adjustment open-ended.

Logistics response

Ask for production lead time, dispatch point, packing method, package dimensions or weight when material, delivery schedule and Incoterms rule with a precise named place. Incoterms allocate particular costs, risks and responsibilities; the three-letter rule alone is incomplete without the named port, terminal or location.

4. Use the Same RFQ Structure for Every Supplier

Issue the same revision, pricing schedule and response deadline to every bidder included in the comparison. If a supplier asks a question that changes the commercial or technical basis, circulate the clarification to the other participating suppliers where appropriate. Record the clarification as an RFQ addendum rather than relying on separate phone calls.

Protect the comparison from version drift. Give each file a revision and date, identify superseded documents, and maintain a short issue log showing who received each revision. When a late design change affects quantity or performance, obtain revised quotations against the same updated package.

5. Build a Quotation Comparison Sheet

Create the comparison structure before quotations arrive. This prevents the first supplier’s format from determining how every other response is reviewed. Keep the supplier’s original quoted values, then add separate normalized fields and review notes. Never overwrite a supplier’s figure with an adjusted figure without preserving the source value and reason.

A practical comparison sheet can include:

  • RFQ line number, material description, specification reference, required quantity and common unit;
  • supplier, manufacturer, offered model, origin and technical compliance status;
  • quoted quantity, quoted unit, unit price, discount, line total and currency;
  • included and excluded accessories, testing, samples, packing, freight, insurance, duties and taxes;
  • MOQ, quotation validity, payment terms, production lead time and delivery commitment;
  • Incoterms rule and named place, warranty, deviations, clarifications and evaluation status.
Comparison fieldSupplier ASupplier BSupplier CReviewer action
Offered specificationCompliesAlternative finishNo responseResolve technical gaps first
Normalized unit priceCommon unit/currencyCommon unit/currencyCommon unit/currencyShow conversion assumptions
Freight and delivery basisIncluded to siteFCA named placeExcludedAdd buyer-side logistics cost
Lead time6 weeks5 weeks after approval4 weeks after depositAlign each starting event
Exclusions / deviationsRecordedRecordedClarification openDo not score unresolved scope

6. Normalize Quotations Before Comparing Prices

Normalization converts different quotation bases into a transparent common basis. It is not permission to invent a supplier price. Every adjustment should show its source, formula, currency date or internal estimate and responsible reviewer.

First align quantities and units. Convert pieces, boxes, linear metres, square metres, kilograms or sets only where the pack size and coverage are known. Then align currency using a documented comparison rate. Next add or separate freight, insurance, customs, duties, taxes, inspection, testing, banking charges and other buyer-side costs as applicable.

Evaluated cost = normalized material price + required accessories + packaging + logistics + applicable import and transaction costs + other priced scope adjustments

Keep tax treatment visible because recoverable tax may need different handling from a true project cost. For imported materials, compare on an agreed delivery basis and do not treat an EXW, FCA, FOB, CIF or DAP quote as equivalent without mapping which costs and risks remain with the buyer. If a cost is unknown, flag it as an open item rather than entering zero.

7. Compare More Than Unit Price

The lowest unit price is not necessarily the lowest evaluated cost or the best procurement outcome. Compare the complete commercial and delivery position after confirming technical acceptability.

  • Scope completeness: required accessories, trims, fixings, testing, samples, submittals and spares;
  • Quantity exposure: MOQ, pack rounding, minimum order value and excess stock created by order multiples;
  • Cash flow: deposit, progress payment, balance timing, retention or credit terms;
  • Schedule: approval period, production lead time, transit time, delivery sequence and capacity constraints;
  • Commercial protection: warranty, validity period, price adjustment, replacement obligations and delay implications;
  • Supplier capability: evidence that the supplier can provide the compliant product and support the required project scale.

Use weighted scoring only when the criteria, definitions and evidence rules are clear. A complex scoring model does not fix an incomplete RFQ. For many purchases, a transparent compliance gate followed by evaluated-cost and delivery comparison is easier to audit and explain.

8. Record Exclusions, Deviations and Unanswered Items

Build a clarification register linked to the comparison sheet. For each issue, record the supplier, RFQ clause or line, question, owner, date sent, due date, response and effect on technical compliance, cost or schedule. Use status labels such as open, answered, accepted, rejected or incorporated into revised quotation.

Separate three different situations: an exclusion removes something from scope; a deviation offers something different from the requirement; an unanswered item leaves the position unknown. Each needs a different decision. Do not silently assume an unanswered item is included, and do not normalize a technical deviation using price alone.

Common comparison error: treating “no exception stated” as proof of compliance when the supplier did not return the requested compliance schedule. Request a direct response and retain the evidence used for the decision.

9. Shortlist Suppliers Before Negotiation or Award

Shortlist only after material gaps are visible. A practical sequence is: confirm mandatory technical compliance, check quotation completeness, compare evaluated cost, test delivery against the project need date, review commercial exceptions, and identify verification work required before commitment.

Give each shortlisted supplier the same opportunity to clarify material issues. When asking for a best and final offer, state the final common scope and response deadline so negotiated prices remain comparable. Keep the original quotation, clarifications and revised offer together as an audit trail.

Quotation evaluation is not supplier verification. Before a meaningful commitment, verify legal identity, payment beneficiary, product claims, relevant certification and supply capability at a level proportionate to the order risk. Use the separate guide on how to verify a building material supplier before placing an order for that next step.

10. A Simple RFQ-to-Evaluation Workflow

Freeze the requirementConfirm quantity, specification, scope, delivery location and required date.
Build the RFQ packagePrepare instructions, pricing schedule, technical response and supporting documents.
Issue one controlled revisionSend the same package and deadline to all selected suppliers.
Log quotations unchangedRetain original files and enter source values without silent correction.
Check compliance and gapsIdentify deviations, exclusions, unanswered requirements and missing documents.
Normalize the commercial basisAlign units, quantities, currency, scope and logistics with documented assumptions.
Evaluate and clarifyCompare technical acceptability, evaluated cost, delivery and commercial terms.
Shortlist and verifyCarry qualified suppliers into negotiation, due diligence and award approval.

The useful output is not simply a spreadsheet with three totals. It is a decision record showing what each supplier offered, what was adjusted for comparison, which questions remain open and why a supplier was shortlisted or rejected. That record improves negotiation, handover and purchase-order accuracy.

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This guide is a practical procurement workflow reference. Required solicitation procedures, evaluation records, taxes, duties, trade terms and contract approvals depend on the organization, product, project and jurisdiction.

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