Cost & Quotation

How to Prepare an Effective Steel Structure RFQ

August 08, 2026

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A steel structure request for quotation (RFQ) is the buyer's controlled set of requirements and response forms. Its purpose is to let bidders identify what they can supply, price the same base scope, and declare the assumptions they cannot yet resolve. The most useful RFQ is not necessarily the longest. It gives each bidder the same documents, a place to record deviations, and a clear procedure for questions and revisions.

This guide helps an owner or procurement team assemble and issue that package. The supplier-side stages, scope and offer review are explained in how steel structure quotations work. The buyer can start with incomplete design information, provided every provisional input is clearly marked and assigned for later confirmation.

Step 1: Decide What Kind of Offer You Need

State at the top of the RFQ whether it seeks a concept budget, a comparison of developed proposals, or an offer against a defined purchasing scope. These requests call for different levels of information and price commitment. An early-stage cost estimate can help the buyer test the provisional budget before issuing the RFQ. A concept-stage request should ask bidders to document their design and quantity assumptions; it should not imply that unresolved site actions or local approval requirements have already been fixed.

Give the RFQ a project identifier, issue date, revision, response deadline, contact, currency, desired delivery date, and location. State whether bidders may propose alternatives. If they may, require a compliant base offer first and price each alternative separately. This prevents a substituted product or changed structural basis from becoming an invisible difference in the headline price.

Step 2: Issue a Data Schedule With Confidence Labels

Put essential inputs into a project data schedule. The schedule tells the bidder which value is confirmed, which is provisional, where it came from, and who will verify it. It also makes missing information visible to the buyer before the RFQ is issued.

Input to provide	Typical attachment or entry	Status to record
Site and use	Location, intended occupancy, site plan, project description	Confirmed or provisional
Geometry	Plan, grids, spans, eave and clear heights, roof form, openings	Drawing revision and unresolved dimensions
Operations	Crane data, mezzanine use, equipment, storage needs, future extension	Equipment supplier and decision date
Design basis	Applicable jurisdiction and codes; available wind, snow, seismic, and geotechnical information	Source, responsible verifier, missing studies
Envelope	Roof and wall assemblies, insulation and fire performance, doors, windows, drainage	Mandatory specification or performance target
Site logistics	Access, piece-length constraints, unloading capability, installation interfaces	Confirmed constraint or bidder assumption

Include a drawing and document index with file name, revision, date, and purpose. A drawing with a newer file date is not automatically the governing revision. If technical information conflicts, instruct bidders to submit a clarification rather than select an assumption silently. Site actions and code applicability require verification by the responsible project professionals; the RFQ should identify that responsibility, not invent a generic load value.

Step 3: Mark Scope and Design Responsibility Explicitly

Use one matrix that lists the requested supply and services. Mark each line base scope, separately priced option, excluded, or by others. Where the answer is genuinely open, request that bidders state their proposed allocation. Avoid relying on a sentence such as “complete steel building” to define every interface.

Work or deliverable	Buyer requests	Bidder must state
Primary frames, secondary steel, bracing, connections	Base scope or specified exception	Included members and quantity basis
Anchor bolts, templates, foundation reactions	Chosen responsibility for each	What is supplied versus information only
Cladding, insulation, openings, trims, drainage	Base or separate options	Assembly specification and omitted accessories
Structural, connection, and shop drawings	Required deliverables and approval route	Designer of record, review limits, issue stage
Coating, galvanizing, fire protection	Performance or project specification	System offered, preparation, inspection, exceptions
Packing, freight, unloading, erection	Requested delivery and site boundary	Limits of each service and assumptions

These are questions for the actual contract, not a default allocation to a fabricator. Add project-specific interfaces such as cranes and runways, solar supports, ventilation openings, specialist doors, and temporary stability when relevant. A base price should not quietly omit a required interface while promising a “complete” package.

Step 4: Supply a Common Commercial Response Form

Ask every bidder to return the same categories, even if its own internal costing is different. The form can remain concise, but it should make the following fields visible:

Base technical proposal and drawing or design-basis revision.
Price by agreed package, currency, taxes, and separately priced options.
Included quantities and the measurement basis for structural steel, cladding, and other major packages where appropriate.
Inclusions, exclusions, deviations, provisional sums, and bidder assumptions.
Design and approval deliverables, quality documents, inspection scope, and warranties where requested.
Production and delivery programme, validity period, payment proposal, packing and shipping basis.
Delivery rule with its named place or port and edition, plus a separate statement of import, inland haulage, unloading, and installation responsibilities.

ICC's Incoterms guidance explains how a selected trade rule allocates delivery tasks, costs, and risks. It does not specify the structural package or replace the rest of the purchase contract. If the project has not chosen a rule, request separate prices on clearly named delivery bases instead of mixing “port price” and “site price” in one column.

Ask bidders to list any price adjustment triggers, including later changes to design criteria, quantities, freight basis, or delivery schedule. An offer valid for a short period and one valid for several months are not identical commitments.

Step 5: Run One Clarification and Revision Process

Give bidders a deadline and contact for questions. Use a shared clarification log with question number, affected document, answer, whether the answer changes price or programme, and the issue date. When an answer changes the common scope, issue an RFQ addendum to all bidders and identify the superseded document. Request acknowledgement of the final revision in each offer.

Record	Minimum information
RFQ issue register	Project ID, revision, date, recipient list, document index
Clarification log	Question, response, affected drawings or specification, decision owner
Addendum	Revised requirement, changed documents, issue date, bidder acknowledgement
Bid receipt register	Bidder, offer revision, received date, validity, missing response items

This control matters when a crane capacity, roof assembly, design action, or delivery destination changes during tendering. A clarification sent privately to only one bidder can leave the offers based on different buildings.

Step 6: Check Completeness Before Comparing Prices

Review each returned offer against the RFQ forms. Confirm that the bidder answered the design basis, scope matrix, delivery boundary, exclusions, and requested programme. Make a comparison copy showing base quoted price + separately priced required items + buyer-side costs needed to reach the same project boundary. Label each adjustment as a confirmed quote, buyer estimate, or unresolved assumption. Do not modify the supplier's original offer.

A changed structural design basis, code assumption, or safety-related detail is a technical deviation, not a simple monetary adjustment. Send it for qualified review before treating the bids as equivalent. Where information remains missing, seek a written clarification and update the comparison register.

A Copy-Ready RFQ Package Outline

Before issue, check that the pack contains:

Cover sheet: project identifier, contact, purpose of quotation, currency, deadlines, permitted alternatives.
Document register: drawings and specifications with revisions and dates.
Project data schedule: confirmed facts, provisional inputs, source, and party responsible for verification.
Scope and responsibility matrix: base, option, excluded, or by others for supply, design, delivery, and installation.
Response forms: price breakdown, quantities, technical basis, deviations, exclusions, programme, and commercial terms.
Clarification procedure: common question deadline, addendum method, and revision acknowledgement.

Conclusion

The RFQ is ready to send when another person can tell what building is being priced, which facts are still open, and how each bidder must show the effect of those open facts. That gives the buyer a dependable starting point for a later technical and commercial comparison.

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