Guides/Tendering
Tendering

Making Sense of Tender Documents: A Guide for Subcontractors

How to read, extract, and price a tender PDF set without losing a weekend. Practical advice for trade subcontractors responding to government, commercial, and strata tenders.

Published 2026-04-21Reviewed by Foxspec Team AI-assisted draft

The tender document problem

A typical government or commercial tender lands in your inbox as a ZIP file containing 3-8 PDFs, totalling 100-300 pages. Somewhere in those pages are the rooms you need to price, the products you need to specify, the compliance certificates you need to hold, and the deadline you need to hit.

The problem: finding the relevant 15 pages in a 200-page document set takes longer than actually pricing the work.

What's in a tender document set

Most tender packages follow a similar structure, regardless of the issuing authority:

DocumentWhat it containsWhat you need from it
Request for Tender (RFT)Formal invitation, submission requirements, evaluation criteriaDeadline, format requirements, mandatory certificates
SpecificationTechnical requirements, materials, standardsProduct specs, installation methods, compliance standards
DrawingsArchitectural and detail drawingsRoom dimensions, quantities, site conditions
Bill of Quantities (BoQ)Itemised scope with quantitiesLine items to price, quantities to verify
Conditions of ContractLegal terms, insurances, liquidated damagesRisk items, insurance minimums, payment terms

The extraction workflow

Whether you use software or do it manually, the process is the same:

1. Triage (10 minutes)

Scan the document set. Identify which documents are relevant to your trade. A tiling subcontractor doesn't need the mechanical services specification - but they do need the architectural spec, the floor plans, and the BoQ.

2. Extract scope (30-60 minutes manually)

For each relevant section, identify:

Rooms or areas in scope
Product specifications (tile size, type, grade, standard)
Quantities (area in m², lineal metres, lump sums)
Special requirements (waterproofing, anti-slip ratings, warranties)

3. Cross-reference the BoQ (15-30 minutes)

The Bill of Quantities should match the specification. In practice, it often doesn't. Common discrepancies:

BoQ quantities that don't match drawing take-offs
Specification calling for a product grade not in the BoQ
Rooms mentioned in specs but missing from BoQ (and vice versa)

4. Identify risks and RFIs (15 minutes)

Before you price, flag anything that could blow up:

Ambiguous specifications (e.g., "or equivalent" without defining what's equivalent)
Missing information (substrate condition, access constraints)
Unrealistic timelines
Liquidated damages clauses

5. Price and submit (30-60 minutes)

Apply your rates, add margins, calculate GST, and format for submission.

Common gotchas

Waterproofing scope ambiguity: Many tender specs mention waterproofing but don't clarify whether the tiling subcontractor or a specialist waterproofer is responsible. Always clarify via RFI.

Wastage assumptions: If the BoQ doesn't include wastage, you need to add it. Standard tile wastage is 10% for rectangular layouts, 15% for diagonal, and up to 20% for complex patterns.

Compliance certificates: Check what certificates are required at handover. AS 3740 waterproofing certification, electrical certificates of compliance, and height safety documentation are commonly required but easily missed in the conditions.

How Foxspec helps with tenders

Foxspec's tender extraction reads the full PDF set and produces a structured bill of quantities with:

Line items matched to your saved rates
Confidence scores per extraction (so you know what to double-check)
Flagged risks (liquidated damages, missing certs, tight timelines)
RFI suggestions for ambiguous items

The goal isn't to replace your trade knowledge - it's to replace the 4-6 hours of reading and spreadsheet assembly with a 30-minute review.

Note: Tender extraction is available as a usage-based add-on (credits). 1 credit = 1 tender PDF set up to 250 pages.

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