Tender evaluation: A practical guide for Australian head contractors

By

Josh Krissansen

Last Updated Jun 15, 2026

By

Josh Krissansen

Tender submissions are not always directly comparable. Subcontractors can interpret the same documentation differently, exclude parts of the scope, or qualify their pricing in ways that are not immediately obvious. Without a structured evaluation process, the lowest price can appear more competitive than it actually is.

Tender evaluation is the process that head contractors use to compare subcontractor submissions consistently, identify scope gaps and pricing exclusions, and assess delivery risk before award.

Done properly, it helps ensure subcontract packages are awarded on a comparable basis rather than simply selecting the lowest price received.

In this article, we explain how to structure a tender evaluation process for subcontractor packages on Australian commercial projects, how to set and weight criteria, how to level non-comparable submissions, and how to manage clarifications and documentation so you can make an award decision that holds up under scrutiny 

What is tender evaluation?

Tender evaluation is the structured process of assessing subcontractor or supplier submissions against pre-determined criteria to identify the best-value offer for a given trade package. Its purpose is to bring submissions onto a comparable basis so the award decision is grounded in evidence, not just the lowest number received, and to reduce the risk of scope gaps being carried into the contract.

Tender evaluation begins after submissions close and ends at the award recommendation, sitting toward the end of the broader procurement cycle:

• Tender package issue
• Site briefing
• Clarifications
• Submission
• Evaluation
• Award
• Contract execution

The evaluation methodology should be established before submissions open. Setting criteria after prices are received can introduce bias into the process and makes any award decision difficult to defend, particularly where the outcome is later reviewed by the client or principal.

Tender evaluation methodologies

Not every trade package warrants the same evaluation approach. The methodology should match the risk profile of the package, the level of scope definition at tender, and the consequences of a poor award decision.

• Price-based selection

  With price-based selection, the lowest price wins.This approach works for well-defined, low-risk packages where the scope is complete, and subcontractors are pre-qualified. A supply-only concrete package with a fixed bill of quantities is a good example: the scope is clear, the quantities are set, and the main variable between submissions is price. 
  
  Price-based selection is the fastest methodology to execute, but if you accept the lowest number without carefully checking what each tenderer has actually included, scope gaps will follow you into delivery. These will typically surface later as variations or claims once the subcontract is in place.
  

• Weighted criteria selection

  With weighted criteria selection, price is scored alongside non-price factors.
  
  Each criterion is assigned a percentage weight, for example, price at 50%, relevant experience at 20%, programme at 15%, and safety record at 15%. Each tenderer is scored against those criteria independently, and the scores are then combined to produce a total weighted score for each submission
  
  This approach suits complex or high-risk packages where delivery capability matters as much as price. On a large commercial fitout, a subcontractor's ability to resource the programme and manage trade interfaces may carry more weight than a marginally lower price.
  

• Qualification-based selection

  Qualification-based selection follows the same idea as weighted criteria selection, but shifts the weighting so that capability and experience carry more weight than price.
  
  It is used where the consequence of poor subcontractor performance is high and the cost of rectification or delay far outweighs any saving at award. Structural, façade, and specialist mechanical or electrical packages on major projects are common candidates for this approach, particularly where delivery risk outweighs any marginal price advantage.

How to run a tender evaluation

Running a tender evaluation well is less about judgment on the day and more about the decisions made before submissions arrive, particularly where those decisions affect how submissions are compared and assessed. The steps below cover the full process, from setting up the evaluation plan through to the award recommendation.

Step 1: Establish the evaluation plan

Confirm the evaluation methodology before you issue the tender package, and document it in writing before submissions open. This means defining the criteria, assigning weights, and identifying who will sit on the evaluation panel. Once submissions are received, the methodology should not change, because changes after submission can compromise the integrity of the process and make the outcome harder to defend.

The size and formality of the panel should reflect the complexity and value of the package.

For a high-value structural or façade package, a three-person panel with a senior commercial lead and a formal moderation process is appropriate. For a straightforward supply-only package, two evaluators working from a shared scoring template may be sufficient.

What matters is that the decision is not made by one person alone, because a sole evaluator has no one to push back on their thinking or identify missed scope issues in the assessment.

Step 2: Disclose criteria to tenderers

When tenderers understand how they will be assessed, submissions are more consistent, and levelling is more straightforward.

Include evaluation criteria and their relative weights in the tender package so tenderers know what will be assessed and how. Mandatory compliance requirements should be specified separately, because insurances, licences, and Work Health and Safety (WHS) documentation are pass/fail gates rather than scored criteria.

Step 3: Manage the tender period and clarifications

Appoint a single point of contact for all tenderer queries during the tender period, and issue all clarifications in writing.

Where a clarification materially affects scope or pricing, circulate it to every tenderer. Providing information to one tenderer that affects their pricing without offering it to others puts the integrity of the process at risk, and if the award is later disputed, it’s very difficult to justify.

A clarifications log recording every query received, the response issued, the date, and the distribution list keeps this process clean and auditable and provides a record if the evaluation process is later reviewed or challenged

Step 4: Screen submissions for mandatory compliance

Before reviewing pricing or scoring non-price criteria, check every submission against mandatory requirements. A submission missing required insurances, licences, or WHS documentation must be excluded at this stage, regardless of price.

The basis for any exclusion should be documented alongside which submissions passed and which did not, so there is a clear record if the decision is later questioned.

Step 5: Level submissions against the scope matrix

Build a scope matrix before submissions close, listing every item of scope, every provisional sum, every trade interface, and every contractual obligation the subcontractor will carry. Map each submission against the matrix line by line, identifying inclusions, exclusions, qualifications, and assumptions.

Where a tenderer has left something out, apply a plug number using current market rates or Rawlinsons reference data, and document the source and basis for every adjustment. Each tendered sum should then be restated as an adjusted comparable price before any scoring begins.

Where a subcontractor has qualified a material condition of the tender, the evaluation team needs to decide whether to seek a revised submission, accept the qualification with documented rationale, or exclude the tenderer. Leaving a material qualification unresolved and proceeding to award is where post-award disputes begin.

Step 6: Score non-price criteria

Panel members score each submission against non-price criteria independently before any group discussion. When evaluators score together, the first opinion expressed tends to anchor the others, and the process loses the benefit of having a panel at all.

Criteria to assess include relevant project experience, key personnel, programme and methodology, safety record and lost time injury frequency rate (LTIFR), financial capacity, and reference checks, with each criterion aligned to the delivery risks of the package being assessed.

After independent scoring, the panel meets to compare notes and agree on a final score for each criterion. Where panel members have scored the same tenderer very differently, the reasons for that gap and how the panel resolved it should be recorded so there is a clear and auditable basis for the outcome.

Step 7: Combine scores and rank the field

Once scoring is complete, apply the pre-set weights to produce a total score for each tenderer and rank the field, ensuring that both price and non-price factors are reflected in the final outcome

If the highest-ranked tenderer is not the one with the lowest price, that outcome needs to be documented clearly. The client or principal will want to understand why, and a well-run evaluation process provides a documented basis for the decision, particularly where the decision is subject to review or approval.

Step 8: Prepare the evaluation report and award recommendation

Complete the evaluation report before any tenderer is notified of the outcome.

The report should document the evaluation methodology, criteria and weights used, scope levelling adjustments and plug numbers, individual and consensus scores, the ranked outcome, and the basis for the award recommendation, so there is a clear record of how the recommendation was reached.

Retain all submissions, clarification logs, scoring sheets, and correspondence for the duration of the project and beyond practical completion. Where the client or principal has approval rights over subcontract awards, the evaluation report is the document that supports that approval.

Effective tender evaluation supports better subcontract awards

A structured tender evaluation process helps head contractors compare submissions consistently, identify scope gaps before award, and assess delivery risk beyond price alone. Running the process properly, from setting the methodology before tenders are received through to documenting the award recommendation, helps reduce commercial risk before delivery begins.

Written by

Josh Krissansen

86 articles

Josh Krissansen is a freelance writer with two years of experience contributing to Procore's educational library. He specialises in transforming complex construction concepts into clear, actionable insights for professionals in the industry.

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