What method of measurement does Cenex use?

Cenex measures quantities to the Australian Standard Method of Measurement (ASMM) published by AIQS. For civil and infrastructure work we apply the Civil Engineering Standard Method of Measurement and TMR-specific schedules for transport projects. Where projects use bespoke schedules of rates, we measure consistently with the contract Bill description and document our measurement assumptions for transparency. All measurement is auditable and aligned with the Best Practice Costing Manual and AIQS practice notes.

What deliverables can a quantity surveyor produce?

Typical quantity surveying deliverables include cost plans (Stages A-F per AIQS), pre-tender estimates, Bills of Quantities, schedules of rates, tender comparison reports, monthly progress valuations and payment certificates, variation assessments, extension of time cost claims, cash flow forecasts, and final account statements with reconciliation to the original contract sum. Cenex also provides expert witness reports, quantum analysis, and independent BOQ check measurement on request.

How does quantity surveying differ from cost estimating?

Cost estimating develops the predicted cost of a future scope of work, typically built up from first principles or using parametric methods. Quantity surveying is the formal measurement and valuation discipline that turns design information into a structured, auditable Bill of Quantities used for tender, payment, and variation assessment under a contract. The two disciplines are complementary: estimating sizes the project; quantity surveying then administers it commercially through delivery.

Are Cenex quantity surveyors AIQS members?

Cenex's senior staff hold AIQS membership and Certified Quantity Surveyor (CQS) credentials in addition to their RPEQ engineering registrations. We work to the AIQS Code of Professional Conduct, Continuing Professional Development requirements, and Best Practice Costing Manual. This dual credential — Engineer and Quantity Surveyor — gives Cenex a particularly strong position for complex infrastructure where engineering judgement and formal measurement intersect.

Quantity Surveyor Brisbane & Queensland | AIQS Aligned

Q: What is quantity surveying?

Quantity surveying is the professional discipline of measuring, valuing, and managing the financial aspects of construction. It covers cost planning at concept and design stage, preparation of Bills of Quantities (BOQ) using formal methods of measurement, contract administration including progress valuations and variations, and final account settlement. In Australia, the profession is led by the Australian Institute of Quantity Surveyors (AIQS) which sets the standards of practice and accredits Certified Quantity Surveyors.

Measure. Plan. Administer.

What is Quantity Surveying?

Quantity Surveying is the professional discipline of measuring, valuing and managing the financial aspects of construction. A quantity surveyor (QS) translates design drawings and specifications into a structured, auditable measure of work — the Bill of Quantities — and then administers the commercial life of the contract from tender award through to final account.

In Australia the profession is led by the Australian Institute of Quantity Surveyors (AIQS), which sets the Standards of Practice, accredits Certified Quantity Surveyors (CQS), and publishes the Australian Standard Method of Measurement (ASMM) and the Best Practice Costing Manual. Internationally the discipline aligns with the Royal Institution of Chartered Surveyors (RICS) and the New Rules of Measurement (NRM).

Cenex's quantity surveying service is delivered by senior staff who hold both AIQS membership and RPEQ engineering registration. That combined credential is rare in Australian infrastructure — it means the same person who measures the work also understands the engineering behind it. The result is faster, more defensible measurement on complex civil, structural, rail, water, and energy projects.

Why It Matters

Why Formal Quantity Surveying Matters

Properly measured quantities are the foundation of fair tendering, accurate progress payment, and clean variation pricing. Without them, projects bleed value through dispute, double-counting, and unagreed scope.

Fair Tender Comparison

A common Bill of Quantities lets every tenderer price the same scope on the same basis. Tender returns become directly comparable and the lowest commercially-credible price can be identified objectively, eliminating the apples-to-oranges problem of unstructured tendering.

Auditable Progress Payments

Monthly progress claims measured against the BOQ give the client confidence that payments reflect actual work in place — not just contractor invoices. This protects cash flow on both sides and is essential under the SOPA legislative framework in Queensland.

Defensible Variations

Variations priced against the contract BOQ rates and ASMM measurement rules can be settled efficiently. Where star rates are required, the QS builds them transparently from first principles. The result is fewer commercial disputes and faster final account closure.

Cost Planning & Control

Stage cost plans (A-F under AIQS) track project economics from concept through detail design, flagging cost growth early when there is still time to redesign. Combined with elemental cost analysis, the cost plan becomes the central commercial control document.

Independent Verification

As an independent QS, Cenex is not aligned with any contractor or designer. Our measurement and certification is impartial, defensible, and prepared to the standards expected by Queensland Treasury, Department of State Development, TMR, and major asset owners.

Risk-Adjusted Pricing

A measured BOQ exposes the cost drivers — quantities, rates, prelims, contingency. That visibility lets the client and contractor allocate risk rationally rather than carrying generous contingencies blind. AIQS-aligned measurement is the engine that makes risk-based pricing possible.

Standards & Methodology

AIQS Standards & Methods of Measurement

All Cenex measurement is performed to formal published standards. The choice of method depends on the project type, the contract, and the client's tendering preferences.

Australian Standard Method of Measurement (ASMM)

The Australian Standard Method of Measurement is the AIQS-published standard for building work. It defines what is measured, the units of measurement, the descriptions, and what is included in (and excluded from) each item. ASMM is the default measurement framework for building and structural work in Australia.

Civil Engineering Standard Method of Measurement

For civil works, the Civil Engineering Standard Method of Measurement applies. It covers earthworks, drainage, pavements, structures, and ancillary civil items in a way that maps cleanly to the kind of work TMR, Queensland Rail, Powerlink, and Sunwater procure.

TMR Schedules of Rates & MRTS

For Queensland transport infrastructure, Cenex measures to the relevant TMR Schedule of Rates aligned with the Main Roads Technical Specifications (MRTS). This includes pavement, drainage, structures, traffic, and electrical schedules that TMR uses for both panel and stand-alone procurement.

Best Practice Costing Manual

AIQS publishes the Best Practice Costing Manual as the practitioner reference for cost planning, elemental cost analysis, and cost reporting. Cenex's cost plans follow this structure so that they are immediately recognisable and auditable by clients, lenders, and other QS practitioners.

Australian Cost Management Manual (ACMM)

For structured cost management across the full project lifecycle, Cenex applies the Australian Cost Management Manual, which integrates cost planning, value engineering, risk management, and post-occupancy evaluation. ACMM gives clients a coherent commercial framework from business case through to operations.

What You Get

Quantity Surveying Deliverables

A complete commercial toolkit for the life of the project — from cost plan through final account.

Pre-Construction Concept & Design

Construction Build & Administer

Closeout Reconcile & Close

Cost Plans · Stages A-F

AIQS elemental cost plans tightening through concept → post-tender. Tracked design contingency & escalation.

6 stages

Bills of Quantities

Fully-measured BoQ to ANZSMM / Civil SMM / TMR rates. Each item traceable to drawing.

Tender-ready

Progress Valuations

Monthly site-measure → payment certificate. Stored materials, retention, set-off, BIF Act compliant.

Monthly

Variation Assessment

Independent assessment using BoQ, derived, or first-principles star rates. Audit-ready variation register.

As-claimed

Cost Reports & Forecasting

Monthly actual-vs-budget, FC to complete, cash-flow projection. AIQS-element structure.

Monthly

Final Account & Reconciliation

Contract sum → final paid value reconciliation with full audit trail. Project-closing deliverable.

Closeout

6 Deliverable Streams

100% AIQS-Aligned

BIF Act Compliant Throughout

A → A/c Concept to Closeout

The Cenex Difference

Why Cenex for Quantity Surveying

Cenex is unusual in the Australian market because our senior staff are simultaneously AIQS Certified Quantity Surveyors and RPEQ-registered engineers. The combination matters more than it sounds.

A pure QS firm measures what is drawn — but is not always equipped to interpret a complex civil or structural design when the drawings are ambiguous. A pure engineering firm understands the design — but may not be steeped in the formal measurement rules and AIQS practice notes that make a BOQ defensible. Cenex sits in the overlap, which is exactly where complex infrastructure work lives.

We pair this dual credential with deep TMR familiarity (CE1 pre-qualified for cost estimating), quantitative risk analysis, and full commercial management capability, so the QS function integrates seamlessly with the rest of the project commercial team.

AIQS

Certified Quantity Surveyor membership held by senior staff

RPEQ

Registered Professional Engineers of Queensland — dual credential

CE1

TMR pre-qualification at the highest level for cost estimating

$16B+

Total project value measured, valued, and administered

Need a Quantity Surveyor on Your Project?

Whether you need a Stage C cost plan, a fully measured tender BOQ, monthly progress valuations, or independent variation assessment, Cenex's AIQS-aligned QS team is ready to help.

Talk to a Quantity Surveyor

Quantity Surveying Services