Guides
How to compare quotes properly
Plain-English, worked-arithmetic guides for estimators, contract administrators, builders, procurement teams and business owners. Useful whether or not you use QuantDoc.
Comparing quotes
- GuideHow to Compare Multiple Supplier QuotesA practical method for comparing three or more supplier quotes: same units, same GST basis, same scope, and a clear record of what is still unknown.
- GuideApples-to-Apples Quote Comparison ExplainedWhat makes two quoted items genuinely equivalent, why similar wording isn’t proof, and how to classify matches before comparing prices.
- GuideGST-Inclusive vs GST-Exclusive QuotesHow to put GST-inclusive and GST-exclusive quotes on the same basis, with formulas: divide by 1.1 to remove GST, multiply by 1.1 to add it, and mixed quotes.
- GuideHow to Detect Missing Items in QuotesHow to spot line items one quote includes and another leaves out, why missing isn’t free, and how to work out the break-even cost of a gap.
- GuideHow to Compare Supplier Quotes in ExcelBuild a quote comparison spreadsheet in Excel: columns, unit and GST formulas, handling missing prices, and the checks spreadsheets commonly miss.
Tenders and subcontractors
- GuideHow to Compare Subcontractor QuotesA step-by-step method for comparing subcontractor quotes fairly: define the scope, match line items, read exclusions and price the gaps before choosing.
- GuideHow to Level Construction QuotationsTender levelling explained: build a baseline, map each quotation to it, adjust for gaps and quantities, and record every assumption, with worked arithmetic.
- GuideHow to Compare a BOQ Against Subcontractor QuotesMap subcontractor quotes to your bill of quantities line by line, handle lump sums and alternatives, and price quantity differences with worked examples.
- GuideHow to Identify Exclusions in Subcontractor TendersWhere exclusions hide in subcontractor tenders, the common ones by trade, and how to price them so the lowest tender is compared on complete scope.
- GuideHow to Identify Missing Scope in TendersFind scope that tenders leave out: explicit exclusions, silence, TBA prices and quantity shortfalls, and how to price each gap before comparing totals.
Plant, earthworks and variations
- GuideHow to Compare Equipment Hire RatesDaily vs weekly hire rates, hour limits, fuel, float and mobilisation, damage waivers and minimum charges: how to work out the real cost of equipment hire.
- GuideHow to Compare Excavation QuotationsCompare excavation quotes on scope: rock and provisional sums, cart-away and tipping, machine size, rates vs lump sums, and what to ask before you sign.
- GuideHow to Check a Construction Variation QuoteA practical checklist for reviewing a variation quote: trace each line to the change, check rates against the original, and isolate the unexplained balance.
Choosing tools
- GuideWhat to Look for in Tender Comparison SoftwareA neutral checklist for choosing tender comparison software: source traceability, unit and GST handling, scope baselines, unknown costs and exports.
- GuideQuote and Variation Software for Contract AdministratorsWhat contract administrators need from software for quotes, revisions and variations, and what should stay a matter for professional judgement.
- GuideAI Quote Comparison for Estimators: Strengths and LimitsWhere AI helps estimators compare quotes, where deterministic arithmetic must take over, and how to check any tool’s output before you rely on it.
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